SECTION I - CLASS DEFINITION
This class relates to devices which include a working chamber
the volume of which is progressively variable into which fluid alternately
enters and exhausts and which is formed by a surface (or surfaces)
of a moving solid member having relative movement with another solid
surface (or surfaces), a portion of the working chamber boundary
being substantially fixed, and in which:
(1) The working member has rotary motion in a single direction
about a fixed or movable axis thereby to expand and contract the
volume of the working chamber, there being relative rotation between
the said working member and surface at some time during the expansion
and contraction of the working chamber.
(2) The working member is circular and causes a change in
the volume of the working chamber as it is progressively tilted
in a single direction about a point on its axis to progressively
contact said other surface, the central axis of the working member
describing a cone whose apex is the point about which the working
member oscillates or wobbles.
(3) The working member causes a change in the volume of the
working chamber but does not have absolute rotation, the working
member being provided with means having an axis offset from and
parallel to the central axis of the working member about which the
central axis moves in an orbit whereby the working member has planetary
movement within the working chamber.
SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
COMBINATIONS WITH LOAD DEVICES
Inasmuch as a mechanical force output of a rotary expansible
chamber device within the definition of this class is to operate
or move a load the inclusion of the load in the claim by name only
or in general terms will not exclude a patent from this class.
An exception to this general rule exists where the load on the expansible chamber
device is a valve. The combination of a rotary expansible chamber
device and a valve as the load moved thereby even if claimed by
name only, is excluded from this class. (See References to Other Classes,
below.)
This line also applies where the load is a tool: that is,
a named tool moved by a rotary expansible chamber device will not
exclude a patent from this class if no tool details are recited.
However, if a support for the work being acted upon by the tool
is claimed, classification in the appropriate tool class results
even though both the tool and the support are claimed by name only.
Also see the Search Class notes, below for the line with regard
to a nominally claimed tool driven by a rotary expansible chamber
device combined with other features such as work cleansing or tool
feeding.
No attempt has been made to review the classification of all
patents found in classes relating to loads adapted to be moved by
a rotary expansible chamber device. Thus, it is to be noted that
the original classification of all patents is not consistent with
the above statement as to nominally claimed loads and this particularly
applies as to classes not recently reclassified. In those instances
in which a body of art is known to exist in a given class in which
the load adapted to be moved by the rotary expansible chamber device
is claimed only nominally, and especially where the classification
of that class provides for a fluid pressure actuator for the device,
currently issuing patents will not be classified as original in this
class (418) even though the load is only nominally claimed.
The means which transmits power from the working member of
the rotary expansible chamber device to the load to be moved (e.g.,
linkage, gearing, etc.), is not considered to be the load to be
moved by the expansible chamber device. Also see the Search Class
notes below for a further discussion of this subject.
SECTION III - REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
| 15, | Brushing, Scrubbing, and General Cleaning, for pumps claimed in combination with a work-contacting
suction or blast nozzle. |
| 73, | Measuring and Testing,
subclasses 253+ for rotary cylinder or piston type expansible chamber
devices used in volume or rate of flow meters. Class 73 includes
rotary expansible chamber meters combined with registering mechanism
and meters incapable of general use as an expansible chamber device.
A meter is considered to be incapable of such general use if there
is no disclosed means to take power therefrom for external use such
as to a registering mechanism. Therefore Class 418 takes a rotary
expansible chamber device having means to take power therefrom such
as for an unclaimed registering mechanism. |
| 74, | Machine Element or Mechanism, appropriate subclasses for machine elements and
mechanisms, per se, and in combination with a nominally claimed
rotary expansible chamber device. In general, gearing or linkage
included as part of the power means either to drive or be driven
by a rotary expansible chamber device is considered to be basic
subject matter of the rotary expansible chamber device and would not
preclude classification in Class 418. |
| 96, | Gas Separation: Apparatus, for the combination of a rotary expansible chamber
device and a specifically claimed separator or filter not specifically
disclosed for protecting the rotary expansible chamber device.
For a further statement of the line between Classes 96 and 418, see
Lines With Other Classes and Within This Class, in the class definition
to Class 96 for the line between Classes 96 and 417, the line between
Classes 96 and 418 being the same. |
| 123, | Internal-Combustion Engines, appropriate subclasses for a rotary piston and cylinder
combination claimed with significant internal-combustion structure
such as fuel injection means, ignition means, fuel charge treatment means,
or compression means with transfer means to an expansion means. |
| 137, | Fluid Handling, for the combination of a rotary expansible chamber
device and a valve as the load moved thereby even if claimed by name
only. (Lines With Other Classes and Within This Class, Combinations
With Load Devices.) |
| 173, | Tool Driving or Impacting, appropriate subclasses for a rotary expansible chamber
device for operating an impact delivering means or for operating
a tool combined with work cleaning or feed means. |
| 210, | Liquid Purification or Separation, appropriate subclasses and especially
subclasses 416.1+ , for the combination of a rotary expansible chamber
device and a specifically claimed filter not specifically disclosed
for protecting the rotary expansible chamber device whether or not
the filter is upstream or downstream of the device. For a further
statement of the line, see the search class note in the definition
to subclass 416.1 of Class 210 for the line between Classes 210
and 417, the line between Classes 210 and 418 being the same. |
| 222, | Dispensing, appropriate subclasses, for the combination of a
pump and a significantly claimed supply container and see section
9 of the class definition to Class 222 for an elaboration of the
line between Classes 222 and 418. |
| 251, | Valves and Valve Actuation, for the combination of a rotary expansible chamber
device and a valve as the load moved thereby even if claimed by
name only. (Lines With Other Classes and Within This Class, Combinations With
Load Devices.) |
| 277, | Seal for a Joint or Juncture, for a generic sealing means or process that may
include a nominally claimed rotary expansible chamber device. Class
277 takes a nominally claimed rotary piston and cylinder combination,
or a nominally claimed rotary piston or cylinder, per se, where
the claim is otherwise directed to a packing or sealing means between
relatively movable surfaces of said cylinder and rotary piston or
on said cylinder or rotary piston. Class 418 takes such devices,
where some details of the cylinder or rotary piston is set forth
in the claim. However, structure of such device which is solely
intended to cooperate with the packing or sealing means is not considered
a detail of the device for Class 418, and is classified in Class
277. A device including either a flexible cup or flange type sealing member
combined with a supporting body structure is classified in Class
418 where such device is disclosed as a rotary piston for either a
pump or a motor. |
| 417, | Pumps, appropriate subclasses for a rotary expansible chamber
pump that is; (1) driven by a significantly claimed motor, (2) operated
by an art device, (3) claimed in combination with another type of
pump and (4) provided with valving other than in-line valving or
valving operating merely to perfect the operation of some part of
the pump and see the Search Class note to Class 418 in the class
definition of Class 417 for an elaboration of the line between these
classes. |
| 475, | Planetary Gear Transmission Systems or Components, for planetary gearing per se, and in combination
with a nominally claimed rotary expansible chamber device. The
line between Class 418 and Class 475 is the same as the line between
Class 418 and Class 74. |
SECTION IV - GLOSSARY
ABUTMENT
A partition member having relative movement with a cylinder
or reaction member of which it is a part and moving incident to
the expansion and contraction of the working chamber, the cylinder
or reaction member not constituting the working member in this case.
CYLINDER
An external member having wall or surface portions forming
part of the working chamber of the rotary expansible chamber device,
the member being either fixed or movable and may surround a fixed
reaction member to move or be moved by the working fluid and may
also include an abutment or reaction surface against which working
fluid acts. However, the abutment or reaction surface for the rotary
expansible chamber device need not necessarily be formed by the cylinder
but may be formed by relatively movable opposed rotating members
within the cylinder at least one of which is a working member.
PARTITION MEMBER
A member either fixed or movable on either the cylinder working
member or other reaction member having a surface portion forming
part of the working chamber to either (1) separate the working chamber
into a plurality of working fluid compartments or (2) separate the
inlet from the outlet of the rotary expansible chamber device.
VANE
A partition member which generally moves with the working
member but also has movement relative to the working member incident
to the expansion and contraction of the chamber. The vane may be
on the cylinder if the cylinder is the working member.
WORKING CHAMBER
The space in an expansible chamber device which includes
the working member and which is adapted to receive working fluid
for acting upon the working member or for being acted upon by the
working member, the chamber expanding and contracting incident to
movement of the working member.
WORKING FLUID
The fluid (expansible or inexpansible) which is introduced
into and withdrawn from the working chamber of the rotary expansible
chamber device either to act upon or be acted upon by the working
member. Fluid which is withdrawn from the working fluid supply
for perfecting the operation of the device is considered to be working
fluid even though it never enters the working chamber of the device.
A fluid combined with working fluid introduced into and exhausted
with the working fluid from the working chamber of the device used merely
to perfect the operation of the device (i.e., cooling, sealing,
lubricating, etc.), is considered to be a nonworking fluid.
WORKING MEMBER
A movable member in a rotary expansible chamber device
having a surface portion disposed to either receive the energy of
a working fluid directed thereagainst for moving the member to thereby
produce a mechanical force output, or which, may move a working fluid
by the application of a mechanical force to the movable member whereby
fluid is admitted into and exhausted from the expansible chamber.
The working member may include a movable vane thereon having a surface
portion for either receiving energy from or energizing a working
fluid passing through the expansible chamber.
SUBCLASSES
![[List of Patents for class 418 subclass 2]](../ps.gif) 2
|
| | This subclass is indented under the class definition. Apparatus having (1) signals, indicators, registers, recorders
or gauges for indicating either a condition of operation of the
device or the condition or position of a part thereof or (2) window
means whereby the operation of the device or the condition or position
of a part thereof may be readily observed.
| | (1)
Note. For classification under part (1) of this definition
there must be either an indicia or an audible or visible signal.
Relative to indicia, there must be graduation or markings in the
disclosure as claimed. Where it is indicated that the mere position
of a part is indicative of a condition of the device (e.g., valve
handle position corresponds to direction of working member rotation
or position of a part of the device) classification under this definition
does not result unless some cooperating indicia are included. |
SEE OR SEARCH CLASS:
| 73, | Measuring and Testing,
subclasses 232+ for expansible chamber type volume or rate of flow
meters and see References to Other Classes in the class definition
of this class for a general statement of the line between this class
and Class 73. |
| 91, | Motors: Expansible Chamber Type,
subclass 1 for signals, indicators or inspection means for
expansible chamber type motors. |
| 92, | Expansible Chamber Devices,
subclass 5 for signals, indicators or inspection windows for
expansible chamber devices. |
|
| | |
| 3
|
| | This subclass is indented under the class definition. Apparatus provided with two or more dissimilar rotary expansible
chamber devices.
| | (1)
Note. Plural rotary expansible chamber devices of like types
differing only in size and shape are excluded from classification
here. |
| | (2)
Note. A rotary expansible chamber device differing from another
but which merely supplies a coolant, lubricant, etc., to the other
is excluded from classification here, and is classified in subclasses 83+. |
| | (3)
Note. Ordinarily, a rotary expansible chamber device of the
stationary cylinder type and a rotary expansible chamber device
of the moving cylinder type are considered to be diverse and classifiable here.
However, a rotary expansible chamber device in which there is provided
a rotating member common to both types having surface portions forming
part of the working chamber surface of each type is not considered
proper for classification here. See subclass 160 for such devices. |
| | (4)
Note. The following are considered to be dissimilar rotary
expansible chamber devices: (1) Sliding vane or abutment type;
(2) Swinging vane or abutment type; (3) Interengaging rotary members; (4)
Nested or internal-external gear type; (5) Planetary; (6) Moving
cylinder; (7) Mutating; and (8) Other miscellaneous rotary expansible
chamber devices. |
SEE OR SEARCH CLASS:
| 417, | Pumps, appropriate subclasses, for diverse pumps and motors
wherein at least one pump or motor is not a rotary expansible chamber
device. |
|
| | |
| 4
|
| | This subclass is indented under the class definition. Apparatus in which the working chamber comprises spaced
partition members moving sequentially in curved and substantially straight
line paths of travel, the distance between the partition members
varying when moving in the curved path of travel to thereby expand
and contract the working chamber. |
| | |
| 5
|
| | This subclass is indented under the class definition. Apparatus in which there is provided a plurality of working
chambers, at least one of the working chambers serially receiving
its working fluid at least in part form one other working chamber,
the working fluid either acting on or being acted upon by the working member
in each working chamber. |
| | |
| 6
|
| | This subclass is indented under subclass 5. Apparatus wherein a working chamber surrounds another working
chamber with which it is in working fluid series flow relationship. |
| | |
| 7
|
| | This subclass is indented under subclass 5. Apparatus in which a rotating working member in each working
chamber includes means for permitting working fluid to flow substantially unimpeded
therepast during a portion of a revolution thereof and for producing
work during another portion of the revolution, a working member
in one working chamber permitting unimpeded working fluid flow therepast
while a working member in a prior or subsequent working chamber
is in work producing relationship with the working fluid. |
| | |
| 8
|
| | This subclass is indented under subclass 5. Apparatus in which there is provided a plurality of working
chambers spaced about the periphery of the working member, at least
two of the working chambers being serially connected so that a working
member may sequentially act upon or be acted upon by the same working
fluid.
| | (1)
Note. The space between adjacent vanes is not considered
to be a working chamber. | |
| | |
| 9
|
| | This subclass is indented under subclass 5. Apparatus in which at least one of the working chambers
is provided with a plurality of members rotating about fixed or
substantially fixed axes having peripheral surface portions disposed
to maintain or substantially maintain line contact therebetween;
at least one of the rotating members being a working member. |
| | |
| 10
|
| | This subclass is indented under subclass 9. Apparatus having three or more rotating members at least
one of which has a peripheral surface engaging the peripheral surfaces
of two or more other rotating members. |
| | |
| 11
|
| | This subclass is indented under subclass 5. Apparatus in which at least one of the working chambers
includes an abutment member having an end surface normally maintained
in sealing engagement with the working member peripheral surface
and having side portions slidably received in the cylinder to have
sliding movement therein incident to the expansion and contraction
of the working member. |
| | |
| 12
|
| | This subclass is indented under subclass 5. Apparatus in which at least one of the working chambers
includes an abutment member having an end surface normally maintained
in sealing engagement with the working member peripheral surface
and is swingably mounted to the cylinder to have swinging movement
therewith incident to the expansion and contraction of the working
member. |
| | |
| 13
|
| | This subclass is indented under subclass 5. Apparatus in which at least one of the working chambers
is provided with a rotating working member having a vane member
slidably mounted thereon and having an end surface normally maintained
in sealing engagement with a peripheral cylinder surface forming
a part of the working chamber; the vane member having sliding movement
relative to the working member incident to the expansion and contraction
of the working chamber. |
| | |
| 14
|
| | This subclass is indented under the class definition. Apparatus in which upon start of the device an interval
of time elapses after which the working member of the device produces work,
the interval of time being the time required for working chamber
parts responding to a condition of operation of the device to assume
or acquire a normal working or sealing relationship to overcome
a working fluid bypass condition present upon starting the device.
SEE OR SEARCH CLASS:
| 417, | Pumps,
subclasses 279+ for expansible chamber devices having condition responsive
pumped fluid control means. |
|
| | |
| 15
|
| | This subclass is indented under the class definition. Apparatus in which working fluid en route to or from the
working chamber of the device is either supplied thereto or discharged therefrom
by a plurality of passages separately communicating therewith, each
passage being at least adapted to communicate with a separate fluid
source or point of use.
| | (1)
Note. Included herein are such devices in which working fluid
is either introduced into or exhausted from the working chamber
by a plurality of separate and distinct passages, each passage ordinarily
being connectible to a separate working fluid source or place of
use (or disposition) spaced from the rotary expansible chamber device. |
SEE OR SEARCH CLASS:
| 91, | Motors: Expansible Chamber Type,
subclass 21 for rotary expansible chamber type motors having
plural working fluid passages for conducting working fluid to the
working chamber thereof, at least one of the passages having either
a separate, selectively adjustable fluid flow control member or
a separate fluid flow control portion of a unitary flow control
means for sequentially and selectively controlling fluid flow through
at least one other passage. However, a plurality of such passages
sequentially controlled by the same portion of an adjustable fluid
flow control member to merely control thereby the rate of fluid
flow to the working chamber is not considered fluid flow through
diverse paths for classification in Class 91. |
| 137, | Fluid Handling,
subclasses 565.01+ for a fluid system including a pump having plural
exhausts, each of which is separately controlled and directed to
a separate point of use. |
| 417, | Pumps,
subclasses 440+ for a significant pump having plural exhausts one of
which being controlled and exhausting to waste. |
|
| | |
| 16
|
| | This subclass is indented under the class definition. Apparatus in which in addition to the relative movement
normally occurring between the working member and the other working chamber
surfaces in the operation of a rotary expansible chamber device,
the expansible chamber device has a portion thereof mounted for
relative movement, and movement of which effects a change in a dimension
of and therefore the voluminal space comprising the working chamber
to thereby vary the amount of working fluid passing therethrough,
no change occurring in the working member rotational speed.
| | (1)
Note. Those devices in which an adjustment is made to provide
a better sealing arrangement or compensate for wear between cooperating
parts and which may incidentally vary the volumetric capacity are
not classifiable here under this definition and are classified either
in subclasses 104+ or on other features. | |
| | |
| 17 | Speed controlled |
| | This subclass is indented under subclass 16. Apparatus in which a dimension of the working chamber is
variably controlled in response to the speed of rotation of the
working member.
SEE OR SEARCH CLASS:
| 74, | Machine Element or Mechanism,
subclass 731.1 for gearing with fluid drive having speed and/or
torque responsive change and see the search notes thereunder. |
| 91, | Motors: Expansible Chamber Type,
subclass 458 for expansible chamber motors having speed governor
operated valves and see the search notes thereunder. |
| 475, | Planetary Gear Transmission Systems or Components,
subclasses 31+ , for planetary gear transmission systems having
fluid drive or control. |
| 477, | Interrelated Power Delivery Controls, Including
Engine Control,
subclasses 84+ and 91, for interrelated power delivery
controls automatically controlled by speed. |
|
| | |
| 18
|
| | This subclass is indented under subclass 16. Apparatus including a plurality of members each of which
is rotatable about a common axis substantially in a common plane
and having working chamber surfaces rotating in the same path, movement
in one direction of at least one of the members being alternately
and relatively increased and retarded whereby to expand and contact
the working chamber and at least one of the members producing work. |
| | |
| 19
|
| | This subclass is indented under subclass 16. Apparatus comprising a plurality of rotating members having
undulating or tooth-like surface projections disposed to maintain
a substantially fixed straight line of contact therebetween against
which working fluid reacts; at least one of the rotatable members being
a working member. |
| | |
| 20
|
| | This subclass is indented under subclass 19. Apparatus having three or more rotating members at least
one of which has a peripheral surface engaging the peripheral surfaces
of two or more rotating members. |
| | |
| 21
|
| | This subclass is indented under subclass 19. Apparatus in which a dimension of the working chamber is
changed by moving the cylinder or a part thereof or the working
member in a direction along the axis of rotation of the working
member. |
| | |
| 22
|
| | This subclass is indented under subclass 16. Apparatus comprising two or more working chambers, a surface
portion of at least one of the chambers being movable to vary the
voluminal space thereof.
| | (1)
Note. Circumferentially spaced working chambers about a common
working member are not considered plural working chambers under
this definition and such devices are classified on other features. |
| | (2)
Note. The plural chambers may be separated by a common intervening
element having opposing surfaces each forming part of a respective
chamber. |
| | (3)
Note. A separate working fluid may be used for each working
chamber. | |
| | |
| 23
|
| | This subclass is indented under subclass 16. Apparatus in which the effective volume of the working chamber
is varied by adjustably restricting the limit of outward movement
of a vane or abutment, from the working or cylinder member, respectively,
in which it is mounted whereby to control the extent of sweeping
contact of its outer edge with the peripheral working chamber surface
of the other member.
| | (1)
Note. A vane or abutment adjustable merely for making a better
seal is not considered proper subject matter for classification
here and such devices have been classified in subclasses 105 and 106. | |
| | |
| 24
|
| | This subclass is indented under subclass 16. Apparatus provided with either a mechanical resilient means
(e.g., spring) or a fluid pressure means other than that normally
occurring within the working chamber in the operation of the device
tending to move either the movable cylinder or portion thereof or
the working member relative to one another to thereby vary the volumetric
capacity of the working chamber.
| | (1)
Note. The cylinder or outer member may be the working member
or it may be in the form of a ring or a segment thereof. |
SEE OR SEARCH CLASS:
| 417, | Pumps,
subclasses 212+ and especially subclass 220 for rotary expansible
chamber pumps in which the capacity is varied by a movable member
(e.g., stator) the member being moved by the pump fluid and there being
a condition responsive valve control of the pump fluid in its application
or release to move the member. |
|
| | |
| 25
|
| | This subclass is indented under subclass 24. Apparatus in which either the cylinder or portion thereof
or the working member is urged to move in both a direction to enlarge
the working chamber and a direction opposite thereto.
| | (1)
Note. Not included herein are variable capacity devices pressure
balanced by fluid or other means, the pressure balancing thereof
merely facilitating ease of adjustment of the device by other means to
thereby vary the working chamber dimension. | |
| | |
| 26
|
| | This subclass is indented under subclass 25. Apparatus in which the cylinder or the working member is
urged to move in at least one of the directions by the working fluid. |
| | |
| 27
|
| | This subclass is indented under subclass 24. Apparatus wherein either the cylinder or the working member
is positively urged in one direction by a resilient mechanical means
to vary the volumetric capacity of the device.
| | (1)
Note. Included herein are devices where the force exerted
by pressures within the working chamber act against the force exerted
by the resilient mechanical means. | |
| | |
| 28
|
| | This subclass is indented under subclass 16. Apparatus in which a dimension of the working chamber is
changed by moving a part thereof in a direction along the axis of
rotation of the working member. |
| | |
| 29
|
| | This subclass is indented under subclass 16. Apparatus in which either the working member or other inner
rotatable member forming a part of the working chamber is translatably
adjusted with respect to an adjacent surface of the cylinder to
thereby vary the volumetric dimension of the working chamber. |
| | |
| 30
|
| | This subclass is indented under subclass 16. Apparatus in which the cylinder or segment thereof is hingedly
connected for swinging movement to thereby vary the volumetric capacity
of the working chamber. |
| | |
| 31
|
| | This subclass is indented under subclass 16. Apparatus in which the cylinder or a segment thereof is
movable in a direction normal to the working member rotational axis,
that portion of the cylinder or segment thereof nearest the working
member, when moved, having to or fro straight line movement with
respect to the working member rotational axis. |
| | |
| 32
|
| | This subclass is indented under the class definition. Apparatus in which there is provided a means movable to
one of a plurality of positions in response to a condition of operation
or a change in the condition of operation of the device to either
(1) allow reverse rotation of the working member without reversing
the direction of working fluid flow or (2) allow reverse working
fluid flow without reversing the direction of working member rotation. |
| | |
| 33
|
| | This subclass is indented under the class definition. Apparatus including a plurality of members each of which
is rotatable about a common axis substantially in a common plane
and having working chamber surfaces rotating in the same path, movement
in one direction of at least one of the members being alternately
and relatively increased and retarded whereby to expand and contract
the working chamber and at least one of the members producing work.
| | (1)
Note. A rotary expansible chamber device having working member
portions (e.g., vanes, etc.), undergoing relative acceleration and
declaration only because of either the eccentricity of the device
or the working chamber design is not deemed proper for classification here. | |
| | |
| 34
|
| | This subclass is indented under subclass 33. Apparatus in which one of the members comprises an outer
movable cylinder having a surface against which motive fluid acts surrounding
a member having a surface of substantially like dimension against
which the motive fluid reacts. |
| | |
| 35
|
| | This subclass is indented under subclass 33. Apparatus in which each one of the rotatable members produces
work. |
| | |
| 36
|
| | This subclass is indented under subclass 35. Apparatus in which the alternate relatively increased and
retarded movement of each working member is controlled by connecting each
working member to a separate member of an interengaging rotating
member group. |
| | |
| 37
|
| | This subclass is indented under subclass 35. Apparatus in which a rotating member rotating about an axis
other than the rotatable (working) member axis is either, per se,
connected to the working member or is connected thereto by an intermediate
member to rotate simultaneously therewith for alternately increasing
and decreasing the speed of movement of the working member, a separate
rotating member being associated with each working member. |
| | |
| 38
|
| | This subclass is indented under subclass 35. Apparatus in which working member movement is controlled
by coacting elements one of which has a surface or groove of irregular
contour for controlling the movements of the other elements and
the working member associated therewith. |
| | |
| 39
|
| | This subclass is indented under the class definition. Apparatus , (A) adapted to be rearranged to perform different
functions or (B) adapted to be altered so as to operate in a different
way or change its function or enhance its operation in some way
by (1) disassembling the apparatus in some portion and then reassembling
the apparatus with the same or different portion, (2) disassembling
some portion from the apparatus, or (3) assembling some portion
of the apparatus.
| | (1)
Note. A mere adjustment of some part of the rotary expansible
chamber device merely to perfect its cooperation with another part
of the device is not considered proper for classification here.
Such devices will be found in subclasses 104+. |
| | (2)
Note. A portion of a rotary expansible chamber device, such
as for example a working chamber liner which is adapted to be reversed,
replaced, removed or added to present a new working member engaging
surface but which does not change the mode of operation of the device
is excluded from this subclass, however, where such a change effects
a change in the size or shape of the device, classification is in
this subclass. |
| | (3)
Note. A reversible device in which is provided either a plurality
of vanes or a plurality of abutments, some of which are placed in
a nonworking position while the remaining ones are in a working
position and vice versa depending on the desired direction of rotation
of the working member is not considered to be convertible for classification
here. Such devices are found in subclass 239. | |
| | |
| 40
|
| | This subclass is indented under the class definition. Apparatus in which means responsive to the speed of rotation
of the working member is provided to govern the speed of rotation
of the working member whereby an optimum speed of rotation thereof
may not be exceeded.
| | (1)
Note. The means may be adjustable to adapt the working member
of the device to operate at but not exceed any desired working member
speed of rotation. | |
| | |
| 41
|
| | This subclass is indented under subclass 40. Apparatus in which the means comprises a mass of solid material
subject to a centrifugal force commensurate with the speed of rotation of
the working member and movable in a direction to, per se, impede
working fluid flow through the expansible chamber device when an
optimum speed of working member rotation tends to be exceeded.
| | (1)
Note. Included in this definition is an enlarged mass of
solid material and any other element rigidly connected therewith. | |
| | |
| 42
|
| | This subclass is indented under subclass 40. Apparatus in which the means comprises a rotating mass of
solid material which is mounted either (1) to an outer surface of
the working member or (2) to the working member within the confines
of its periphery.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 185, | for a working member having an inlet or an outlet
passage therethrough controlled by a movable flow restricting means
positioned therein. |
|
| | |
| 43
|
| | This subclass is indented under subclass 40. Apparatus in which the means comprises a mass of solid material
which rotates about an axis either (1) coincident with or (2) parallel
to the working member axis of rotation. |
| | |
| 44
|
| | This subclass is indented under subclass 43. Apparatus in which the mass of solid material rotates about
an axis other than the axis of rotation of the working member. |
| | |
| 45
|
| | This subclass is indented under the class definition. Apparatus in which the working chamber is formed at least
in part by a flexible wall, said wall being progressively distorted
by contact with a member external thereto having a surface substantially
circumferentially coextensive therewith to expand or contract the working
chamber.
| | (1)
Note. For a definition of collapsible wall, see Class 92,
Expansible Chamber Devices, subclass 89. |
| | (2)
Note. A flexible coating material forming a surface of the
working chamber disclosed merely for wear prevention, sealing, protection
against corrosiveness, etc., of the coated part is not considered to
be a flexible wall for classification here. See this class, subclass
152 and the notes therein for rotary expansible chamber devices
having parts either coated with or made of non-metallic material. | |
| | |
| 46
|
| | This subclass is indented under the class definition. Apparatus in which the rotary expansible chamber device
is provided with either (1) a trap or screen means to respectively
collect or separate solid foreign material from the working fluid
either in the working chamber or at the inlet or outlet thereto
or (2) an enlargement of a working chamber part especially designed for
allowing passage of solid foreign material laden working fluid through
the working chamber of the device, the trap or screen means or the
enlargement of the working chamber part enhancing the operation
of the expansible chamber device.
| | (1)
Note. Not included under part 2 of this definition are devices
wherein there is included a seal, wear or other coating means forming
part of the working chamber surface which may either be moved by
or absorb the abrasive effect of the working fluid and any solid
impurities therein. Nor are devices wherein the working member
or the cylinder is made of nonmetallic material included here.
However, such devices provided with an additional enlarged means
especially designed for coping with solid foreign material in the
working fluid are deemed proper for classification here. |
| | (2)
Note. The removal of foreign particles from between substantially
contacting relatively moving surfaces of the device by flushing
with either pressurized fluid or mere leakage fluid is not considered proper
for classification here. Such devices have been classified on other features. |
| | (3)
Note. A working fluid may include solid particles not considered
to be foreign material (e.g., cement, wood pulp, etc.). | |
| | |
| 47
|
| | This subclass is indented under subclass 46. Apparatus wherein there is provided a screen device to strain
incoming working fluid. |
| | |
| 48
|
| | This subclass is indented under the class definition. Apparatus in which a cylinder and a rotating working member
of substantially like axial extent have interfitting internal and
external helical surfaces of unlike pitch, rotation of the working
member causing relative gyratory movement between the cylinder and
the working member to thereby expand and contact the working chamber.
| | (1)
Note. Such devices wherein the cylinder is the working member
are considered proper for classification here. |
| | (2)
Note. Included herein are devices in which the cylinder is
made of a tubular material, helical surfaces thereon being formed
by the helical surfaces of the working member pressing thereagainst. | |
| | |
| 49
|
| | This subclass is indented under the class definition. Apparatus in which the working member includes a working
chamber forming surface having cyclic wobbling or undulating motion and
having progressively moving line contact with a complementary working
chamber forming surface of another member to thereby produce a rotating
working chamber, the central axis of the working member describing
a cone whose apex is the point about which the working member wobbles. |
| | |
| 50
|
| | This subclass is indented under subclass 49. Apparatus in which the working member or other working chamber
part is either made of or coated with a nonmetallic material.
| | (1)
Note. A mere seal means made of nonmetallic material is not
considered proper for classification here. See subclasses 104 for
mechanical sealing and 152 for a nonmetallic working member, cylinder
or partition. | |
| | |
| 51
|
| | This subclass is indented under subclass 49. Apparatus in which either the working member or the other
member is provided with a movable, expandable, adjustable or deformable means
for engaging the other of said members to oppose the passage of
working fluid therepast to constrain the working fluid to move in
a prescribed path of flow.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 104, | and the subclasses thereunder for other rotary expansible
chamber devices having sealing means. |
|
| | |
| 52
|
| | This subclass is indented under subclass 49. Apparatus in which a single working member has opposed working
surfaces, each of which forms a movable surface of a separate working chamber
for expanding and contracting the working chamber. |
| | |
| 53
|
| | This subclass is indented under subclass 52. Apparatus in which the working chambers are spaced in a
direction generally along or parallel to the working member axis
about which it wobbles. |
| | |
| 54
|
| | This subclass is indented under the class definition. Apparatus in which the working member either (1) rotates
about its axis while the axis moves in an orbit or (2) has circular
translatory or oscillatory movement without rotation or substantial
rotation about its axis while the axis moves in an orbit. |
| | |
| 55.1 | Helical working member, e.g., scroll: |
| | This subclass is indented under subclass 54. Apparatus in which the working member includes continuous
working portions in the form of a spiral either (1) lying in the
same plane and having increasing radius or (2) extending axially. |
| | |
| 55.4 | With mechanical sealing: |
| | This subclass is indented under subclass 55.1. Apparatus in which a means is provided to prevent leaking
of the working fluid.
SEE OR SEARCH CLASS:
| 277, | Seal for a Joint or Juncture, for a generic sealing means or process,
subclass 398 for a relatively rotatable radially extending sealing
face member (e.g., face, mechanical, etc.) that accommodates or
exhibits eccentric, gyratory, or oscillatory motion or subclasses
399+ for a relatively rotatable radially extending sealing
face member (e.g., face, mechanical, etc.) having a particular configuration. |
|
| | |
| 56
|
| | This subclass is indented under subclass 54. Apparatus in which the working member, cylinder or partition
element is either made of or coated with a nonmetallic material.
| | (1)
Note. A mere seal means made of nonmetallic material is not
classifiable here. Classification of such devices will be made
on other features. | |
| | |
| 57
|
| | This subclass is indented under subclass 54. Apparatus in which means is provided to either (1) selectively
move the working member with respect to the cylinder wall surface
or (2) positively urge the working member into sealing engagement
with the cylinder wall surface by a spring or other biasing means
as the working member moves incident to the expansion and contraction
of the working chamber. |
| | |
| 58
|
| | This subclass is indented under subclass 54. Apparatus in which there is provided either (1) a plurality
of working members mounted to rotate in the same or different working
chambers or (2) two or more working chambers. |
| | |
| 59
|
| | This subclass is indented under subclass 58. Apparatus in which at least one working chamber surrounds
another. |
| | |
| 60
|
| | This subclass is indented under subclass 58. Apparatus in which at least one of the plurality of working
members is spaced in the direction of or along the rotational axis
of one other working member. |
| | |
| 61.1 | Circumferentially spaced working chambers: |
| | This subclass is indented under subclass 58. Apparatus in which there is provided a plurality of working
chambers spaced about the periphery of the working member, the working chambers
being successively alternately filled and exhausted by the oscillating
rotating motion of the working member. |
| | |
| 62
|
| | This subclass is indented under subclass 54. Apparatus in which a bladelike element is hingedly connected
to both the working member and to the cylinder. |
| | |
| 63
|
| | This subclass is indented under subclass 54. Apparatus in which there is provided a displaceable divider
element mounted on either the cylinder member or the working member but
engaging the other member and moving incident to the expansion and
contraction of the working chamber to separate the low and high pressure
zones of the working chamber. |
| | |
| 64
|
| | This subclass is indented under subclass 63. Apparatus in which the divider element has reciprocal movement
in the working member. |
| | |
| 65
|
| | This subclass is indented under subclass 63. Apparatus in which the divider element is provided with
a passage means to allow ingress or egress of the working fluid.
| | (1)
Note. A blade-like partition element having a passage for
pressurized working fluid for biasing the blade-like partition element
but not for intake or exhaust of working fluid to or from the working chamber
is not classifiable here. See subclass 249 for fluid biased abutments and
subclasses 267 and 268 for fluid biased vanes. | |
| | |
| 66
|
| | This subclass is indented under subclass 63. Apparatus in which the divider element and the working member
are either (1) inseparable component parts of a unitary structure
or (2) are separable parts rigidly connected for concurrent movement. |
| | |
| 67
|
| | This subclass is indented under subclass 63. Apparatus in which the divider element is hingedly connected
to the working member. |
| | |
| 68
|
| | This subclass is indented under the class definition. Apparatus in which in addition to rotary movement a rotating
internal member has periodic to-and-fro movement incident to the expansion
and contraction of the working chamber. |
| | |
| 69
|
| | This subclass is indented under the class definition. Apparatus in which (1) there is provided in the working
member drive a weakened member designed to break or rupture on overload
of the working member to thereby discontinue the drive or (2) a
releasable means is provided in the drive connected to the working member
for interrupting the drive either in response to a condition of
operation of the device or at the will of an operator. |
| | |
| 70
|
| | This subclass is indented under the class definition. Apparatus in which the device is made of detachably secured
parts which are readily assembled or disassembled by manually operable
securing means only and without the aid or use of a tool means.
| | (1)
Note. The manually operable securing means may include an
enlarged portion or a portion so made as to provide a mechanical
advantage to thereby facilitate manual assembly or disassembly of the
device. | |
| | |
| 71
|
| | This subclass is indented under the class definition. Apparatus in which radial forces or bias acting on a rotating
member periphery because of fluid pressure in a pressure area or
zone comprising part of the working chamber is substantially counterbalanced
by an opposing area or zone of substantially equal pressure acting either
on the rotating member periphery or the mounting means therefor.
| | (1)
Note. A counterbalancing zone or force may be in a resultant
direction substantially opposite a resultant zone or force. |
| | (2)
Note. The mere filling of intervene or inter-tooth spaces
which may also tend to counter-balance the radial forces caused
by exhaust or inlet fluid pressure is not deemed proper for classification here;
nor are opposing inlet or outlet zones, per se, considered proper
for classification here. Such devices are classified on other features. | |
| | |
| 72
|
| | This subclass is indented under subclass 71. Apparatus in which the opposing fluid zones are spaced about
the rotating member periphery and are inter-connected by passage
means extending through the rotating member. |
| | |
| 73
|
| | This subclass is indented under subclass 71. Apparatus wherein at least one of the opposing fluid zones
is at the journal means for the rotating member. |
| | |
| 74
|
| | This subclass is indented under subclass 71. Apparatus in which at least one of the opposing fluid zones
comprises a part of the working chamber and the counterbalancing
fluid directed thereto pressurizes the space between adjacent vane
or tooth surfaces.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 180, | for similar devices wherein pressurized fluid at
the high pressure working chamber zone is directed to a lower pressure
working chamber zone. |
|
| | |
| 75
|
| | This subclass is indented under the class definition. Apparatus in which there is provided an elongate, relatively
shallow recess or depression of substantially the same cross-sectional dimension
along its center line on at least one-side surface of either one
of the adjacent substantially engaging cylinder or rotating member
side surface, the recess or depression being other than the inlet
or outlet or a part of the inlet or outlet of the device.
| | (1)
Note. The recess or depression may be fluidly connected to
the inlet or outlet of the device or may be connected to a source
of nonworking fluid or it may collect leakage pressure fluid only. |
| | (2)
Note. The recess or depression enhances the operation of
the device and may be used for lubricating, cooling, sealing, balancing,
conducting fluid to or from a vane slot, etc. |
| | (3)
Note. A mere port is not considered proper for classification
here, however, a port having a flared mouth portion is considered
classifiable here. Otherwise, the elongate shallow recess or depression
has substantially the same dimensions about its center line for
a substantial portion of its length. | |
| | |
| 76
|
| | This subclass is indented under subclass 75. Apparatus in which fluid other than working fluid is positively
directed to the shallow recess or depression.
| | (1)
Note. Devices having grooves receiving leakage fluid whether
working non working or a mixture thereof are not considered proper
for classification here. See subclass 75 and subclasses 77 through
82 for similarly grooved devices. | |
| | |
| 77
|
| | This subclass is indented under subclass 75. Apparatus in which the working member is provided with the
shallow recess or depression. |
| | |
| 78
|
| | This subclass is indented under subclass 75. Apparatus in which the shallow recess or groove traverses
a plurality of spaces formed in part by adjacent sides of adjacent
vanes or tooth-like projections on a working member, one end of
the shallow recess or groove terminating in zone of higher or lower
fluid pressure to at least sequentially interconnect the spaces with
the fluid pressure zone. |
| | |
| 79
|
| | This subclass is indented under subclass 75. Apparatus in which the shallow recess or depression has
parallel sides or edges parallel to a radial line therebetween extending
from the axis of rotation of the working member. |
| | |
| 80
|
| | This subclass is indented under subclass 75. Apparatus in which an abutting surface has a plurality of
spaced shallow recesses or depressions of which at least two are
spaced at unequal distances from the working member axis of rotation.
| | (1)
Note. Two or more members may combine to form the abutting
surface. | |
| | |
| 81
|
| | This subclass is indented under subclass 75. Apparatus in which the abutting surface is provided with
a ring-like recess or depression extending entirely around the working
member axis of rotation.
| | (1)
Note. The recess or depression may be formed by surface portions
of each of a plurality of members, one of which having a surface
in abutting relationship with the adjacent working member surface. | |
| | |
| 82
|
| | This subclass is indented under subclass 75. Apparatus in which the elongated recess or depression lies
in a path traversed by the vane slot of a rotating working member
for fluid communication therebetween. |
| | |
| 83
|
| | This subclass is indented under the class definition. Apparatus in which there is provided means to either (1)
heat or cool either the working or the nonworking fluid or any part
of the device, (2) direct a fluid other than working fluid to the
device or to the working fluid to provide a film or coating between
adjacent surfaces of a plurality of relatively moving parts to prevent
direct rubbing contact therebetween or passage of working fluid
therepast or (3) at least partially immerse the device in a nonworking
liquid whereby to enhance the operation of the device.
| | (1)
Note. A lubricating or sealing agent comprising nonworking
finely divided solids having flow characteristics of a fluid, performing
a lubricating or sealing function under part 2 of the above definition
is considered proper for classification here. | |
| | |
| 84
|
| | Apparatus under 83 in which there is provided means for
sensing either a condition of operation or a change in a condition
of operation of the device and for controlling nonworking fluid flow
in response thereto.
SEE OR SEARCH CLASS:
| 417, | Pumps,
subclass 228 for similar subject matter in which the pump is
of the reciprocating type. |
|
| | |
| 85
|
| | This subclass is indented under subclass 83. Apparatus wherein the nonworking fluid is itself heated
or cooled by means specifically designed to either add or remove
heat therefrom prior to its entry to the device or working parts
thereof. |
| | |
| 86
|
| | This subclass is indented under subclass 83. Apparatus in which the working fluid either prior to entering
or upon leaving the working chamber is caused to follow a tortuous
path thereabout for either giving off or absorbing heat in the operation
of the device.
| | (1)
Note. Incidental heat exchange by working fluid entering
or leaving the working chamber of the device by the most direct or
expeditious path is not considered proper for classification here.
Also, diversion of a portion of the working fluid merely for lubrication
purposes but which may incidentally cool is not considered proper
for classification here and classification of such devices will
be based on other features. | |
| | |
| 87
|
| | This subclass is indented under subclass 83. Apparatus in which the flow of nonworking fluid to the relatively
moving surfaces may be varied by the adjustment of a movable flow restrictive
means in the path of flow. |
| | |
| 88
|
| | This subclass is indented under subclass 83. Apparatus in which nonworking fluid is positively applied
to the device or part thereof by a fluid displacement device having
a movable fluid displacing element for impelling the nonworking
fluid thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 101, | for devices in which a fan or other air impelling
means directs air to an outer surface of the device to remove heat therefrom
generated in the operation of the device. |
|
| | |
| 89
|
| | This subclass is indented under subclass 83. Apparatus provided with porous means to remove physical
impurities from the nonworking fluid. |
| | |
| 90
|
| | This subclass is indented under subclass 83. Apparatus in which the nonworking fluid is fed by means
of the capillary action of an element either to the incoming working
fluid for contacting therewith the relatively moving parts of the
device or directly to one of the relatively movable parts of the
device. |
| | |
| 91
|
| | This subclass is indented under subclass 83. Apparatus in which an inner working or reacting member is
provided with a flow path or passageway for conducing nonworking
fluid therethrough.
| | (1)
Note. The working and nonworking fluid may be intermixed. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 101, | for rotary expansible chamber devices having a central
passage therethrough open to the atmosphere combined with ambient
air impelling means to move the air through the passage for removing
heat generated in the operation of the device. However, similar devices
in which the working member has at least one passage portion extending
generally radially so that air passing therethrough is caused to approach
the working member circumferentially periphery to remove heat therefrom
are classified here. |
|
| | |
| 92
|
| | This subclass is indented under subclass 91. Apparatus comprising a working member with a vane wherein
the nonworking fluid flow path includes a passageway or duct means
through the vane. |
| | |
| 93
|
| | This subclass is indented under subclass 91. Apparatus in which the device includes a vane which is moved
into cylinder wall engagement either by (1) pressurized nonworking
fluid directed to the vane slot or (2) pressurized working fluid
combined with a nonworking fluid directed to the vane slot. |
| | |
| 94
|
| | This subclass is indented under subclass 91. Apparatus in which the flow path for the nonworking fluid
includes a duct means in the drive shaft of the device. |
| | |
| 95
|
| | This subclass is indented under subclass 83. Apparatus in which the working and nonworking fluids are
in separate compartments of the device and including means intermediate
the compartments to divert or vent away either fluid tending to
move in a direction to mix with the other fluid.
| | (1)
Note. A mere seal means between the two compartments is not
considered proper for classification here. See subclass 104 for
such subject matter. | |
| | |
| 96
|
| | This subclass is indented under subclass 83. Apparatus in which the device is placed in a liquid so that
the cylinder thereof is at least partially covered thereby. |
| | |
| 97
|
| | This subclass is indented under subclass 83. Apparatus in which the nonworking fluid enters the working
chamber of the device to mix with the working fluid therein either
(1) by directly conducting the nonworking fluid to the working chamber
or (2) by the leakage or flow of the nonworking fluid thereto after
being initially directed to another part of the device. |
| | |
| 98
|
| | This subclass is indented under subclass 97. Apparatus in which the nonworking fluid is initially directed
to impinge on the shaft trunnions or bearings of the device from
whence it passes to enter into a zone of lower pressure of the working
chamber. |
| | |
| 99
|
| | This subclass is indented under subclass 97. Apparatus in which the nonworking fluid is initially directed
to impinge against the working member from whence it passes to enter
into a zone of lower pressure of the working chamber. |
| | |
| 100
|
| | This subclass is indented under subclass 83. Apparatus in which the nonworking fluid is initially directed
so as to unite with the working fluid prior to its entry into the
working chamber of the device. |
| | |
| 101
|
| | This subclass is indented under subclass 83. Apparatus in which there is provided either a means to produce
and direct a current of air to a surface of the rotary expansible
chamber device or a projection means on the cylinder surface for
dissipating heat to the atmosphere whereby heat generated in the
operation of the device is removed therefrom. |
| | |
| 102
|
| | This subclass is indented under the class definition. Apparatus in which at least part of the working fluid is
directed by means of a passageway to another part of the device
to provide a film or coating between adjacent surfaces of relatively
moving parts to prevent direct rubbing contact therebetween or passage of
working fluid or ambient air therepast. |
| | |
| 103
|
| | This subclass is indented under the class definition. Apparatus in which the working member includes a plurality
of parts having working chamber surface portions movable relative
to each other in the direction of working member rotation as the
working member rotates. |
| | |
| 104
|
| | This subclass is indented under the class definition. Apparatus in which a working chamber part comprising either
the working member, cylinder or partition member is provided with
a movable, expansible, adjustable or deformable means having at
least substantial engagement with another working chamber part to
oppose the passage of working fluid therepast to constrain the working
fluid to move in a prescribed path of flow.
| | (1)
Note. The means may include an adjustable working member
or cylinder. |
| | (2)
Note. A movable vane or abutment moved incident to the expansion
and contraction of the expandable chamber is not considered to be
sealing, however, if additionally to such a vane or abutment there
is provided a movable, expandable, adjustable or deformable means
enabling closer tolerances to be maintained between the relatively
moving parts to thereby oppose the passage of fluid therebetween
such is considered to be sealing and proper for classification here. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 179, | for rotary expansion chamber devices made of specific
or diverse materials whereby sealing may be obtained or maintained
solely by the difference in expansion characteristics of the material. |
SEE OR SEARCH CLASS:
| 277, | Seal for a Joint or Juncture, for a generic sealing means or process,
subclass 357 for a dynamic seal for a rotary piston. |
|
| | |
| 105
|
| | This subclass is indented under subclass 104. Apparatus in which the abutment is movable and is provided
with an adjusting means for repositioning the abutment to compensate
for wear. |
| | |
| 106
|
| | This subclass is indented under subclass 104. Apparatus wherein the vane is movable and is provided with
an adjusting means for repositioning the vane to compensate for
wear. |
| | |
| 107
|
| | This subclass is indented under subclass 104. Apparatus in which the working member and the cylinder are
bodily movable relative to each other for establishing or maintaining
a line or arcuate surface of contact therebetween to oppose the
passage of working fluid therepast. |
| | |
| 108
|
| | This subclass is indented under subclass 107. Apparatus in which the working member and the cylinder are
mounted for relative movement normal to the axis of rotation. |
| | |
| 109
|
| | This subclass is indented under subclass 108. Apparatus wherein the working member is mounted for adjustment
normal to its axis of rotation. |
| | |
| 110
|
| | This subclass is indented under subclass 104. Apparatus wherein the working member comprises a plurality
of axially movable portions of substantial dimension, each having
a side surface movable into sealing relationship with a respective
cylinder side. |
| | |
| 111
|
| | This subclass is indented under subclass 104. Apparatus wherein a vane or an abutment comprises a plurality
of axially movable portions of substantial dimension having end
surfaces movable into sealing relationships with respective cylinder
sides.
| | (1)
Note. A vane or abutment provided with axially movable seal
means at its ends to engage the cylinder sides is not considered
to comprise a plurality of axially movable portions of substantial
dimension and is classified in the appropriate sealing subclasses
below. | |
| | |
| 112
|
| | This subclass is indented under subclass 104. Apparatus in which the movable, expandable, adjustable or
deformable means is mounted on the working member periphery to have
wiping contact with the cylinder peripheral surface. |
| | |
| 113
|
| | This subclass is indented under subclass 112. Apparatus wherein the working member includes a protruding
(e.g., apex) portion on its periphery which is provided with a movable, expandable,
adjustable or deformable means for engaging a cylinder working chamber
surface to oppose the passage of working fluid therepast and wherein
the movable, expandable, adjustable or movable means does not move
or is a part of a member that moves incident to the expansion or
contraction of the working chamber. |
| | |
| 114
|
| | This subclass is indented under subclass 113. Apparatus wherein the working member includes a protruding
part that is either (1) fixedly repositionable thereon or (2) integral therewith
but extendable thereon, the part being movable to sealingly engage
another working chamber surface. |
| | |
| 115
|
| | This subclass is indented under subclass 113. Apparatus in which the movable, expandable, adjustable or
deformable means is either (1) interconnected with a weight so that
outward movement thereto because of centrifugal force is at least
partially counterbalanced by the weight or (2) is fixedly attached
to the working member and is adapted to be moved to at least one
other fixed position thereon. |
| | |
| 116
|
| | This subclass is indented under subclass 113. Apparatus in which the movable, expandable, adjustable or
deformable means is at least in part, in the form of a circular
band or loop and lies in a plane generally normal to the direction of
working member rotation. |
| | |
| 117
|
| | This subclass is indented under subclass 113. Apparatus in which there is provided at least two separate,
movable, expandable, adjustable or deformable means on a protruding
portion of the working member for engaging the cylinder working
chamber surface. |
| | |
| 118
|
| | This subclass is indented under subclass 113. Apparatus in which the deformable, expandable, adjustable
or deformable means has an end portion pivotally secured to the
working member, the other end being movably maintained in wiping
contact with the cylinder working chamber peripheral surface to
oppose the passage of working fluid therepast. |
| | |
| 119
|
| | This subclass is indented under subclass 113. Apparatus in which the movable, expandable, adjustable or
deformable means includes an elongate side portion integral or immovably fixed
therewith of substantially greater radial dimension to depend therefrom
for engaging the working chamber cylinder side surface. |
| | |
| 120
|
| | This subclass is indented under subclass 113. Apparatus in which the movable, expandable, adjustable or
deformable means is movable in a direction along or parallel to
the working member rotational axis. |
| | |
| 121
|
| | This subclass is indented under subclass 120. Apparatus in which the movable, expandable, adjustable or
deformable means is positively urged to engage a cylinder working
chamber side surface by means of a resilient, deformable, mechanical
device. |
| | |
| 122
|
| | This subclass is indented under subclass 113. Apparatus in which the means for urging the movable, expandable
or deformable means includes a resilient mechanical device. |
| | |
| 123
|
| | This subclass is indented under subclass 122. Apparatus in which the means for urging the movable, expandable
or deformable means includes a pressurized fluid. |
| | |
| 124
|
| | This subclass is indented under subclass 113. Apparatus in which the means for urging the movable, expandable
or deformable means comprises a pressurized fluid. |
| | |
| 125
|
| | This subclass is indented under subclass 104. Apparatus in which the movable, expandable, adjustable or
deformable means is mounted on the cylinder to have wiping contact
with the rotary member periphery to prevent leakage of fluid therebetween.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 191, | for interengaging rotary members and see the search
note to this subclass (125) in the definition thereto for the distinction
between similar subject matter in these subclasses. |
|
| | |
| 126
|
| | This subclass is indented under subclass 125. Apparatus in which the expandable, movable, adjustable or
deformable means has wiping contact with the periphery of each of
a plurality of rotary members. |
| | |
| 127
|
| | This subclass is indented under subclass 125. Apparatus in which means is provided to selectively move
the movable, expandable, adjustable or deformable means into sealing engagement
with the rotary member surface. |
| | |
| 128
|
| | This subclass is indented under subclass 127. Apparatus in which there is provided an elastic biasing
means intermediate the selective moving means and the movable, expandable, adjustable
or deformable means to urge the last mentioned means into engagement
with the rotary member surface. |
| | |
| 129
|
| | This subclass is indented under subclass 125. Apparatus in which there is provided an elastic biasing
means to urge the expandable, movable, adjustable or deformable
means into engagement with the rotary member surface. |
| | |
| 130
|
| | This subclass is indented under subclass 104. Apparatus in which there is provided an axially movable
cylinder member having an annular, axially extending lip portion
abutting an adjacent cylinder surface portion to thereby oppose the
passage of working fluid therepast, the axially movable cylinder
member and the adjacent cylinder surface cooperating to produce
a cavity in which a member having a peripheral surface forming part
of the working chamber is housed. |
| | |
| 131
|
| | This subclass is indented under subclass 104. Apparatus in which the cylinder comprises a side plate or
end wall or a portion thereof having a face or surface axially movable
into engagement with the adjacent working member side face or surface
to oppose the passage of working fluid therepast. |
| | |
| 132
|
| | This subclass is indented under subclass 131. Apparatus wherein the side plate or end wall is urged into
sealing engagement with the side of the working member, the urging
thereof being in opposition to and at least substantially commensurate
with the differing working fluid pressures within the working chamber
as the working fluid moves from inlet to outlet thereof. |
| | |
| 133
|
| | This subclass is indented under subclass 131. Apparatus wherein the side of the end wall engaging the
working member has a portion abutting an adjacent face or surface
portion of the cylinder which is coplanar with the working member
face, the cylinder being either fixed or moving. |
| | |
| 134
|
| | This subclass is indented under subclass 131. Apparatus in which means is provided to selectively move
the end plate into sealing engagement with the adjacent working
member side surface.
| | (1)
Note. An end plate or wall may consist of a ring-like plate
member having a surface forming a complete wall of the working chamber. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 140+, | for ring-like members for providing a seal means
between the working member and cylinder and which may incidentally
form a surface portion of the working chamber. |
|
| | |
| 135
|
| | This subclass is indented under subclass 131. Apparatus wherein a resilient mechanical means urges the
end plate or wall into engagement with the working member side. |
| | |
| 136
|
| | This subclass is indented under subclass 104. Apparatus in which the means is mounted on either the working
member or the vane but engages the other to oppose the passage of working
fluid therepast. |
| | |
| 137
|
| | This subclass is indented under subclass 136. Apparatus wherein the means opposing the passage of working
fluid is mounted on the working member. |
| | |
| 138
|
| | This subclass is indented under subclass 137. Apparatus in which the means opposing passage of working
fluid is rockable about its axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 241, | for similar devices in which a seal element between
the working member and the vane is not provided. |
|
| | |
| 139
|
| | This subclass is indented under subclass 104. Apparatus provided with a movable abutment and means mounted
thereon or on either the working member or the cylinder for engagement
therebetween to oppose the passage of fluid therepast. |
| | |
| 140
|
| | This subclass is indented under subclass 104. Apparatus provided with a means mounted on either the cylinder
or the working member but either engaging the other or having slight
clearance with the other to oppose the passage of fluid therepast. |
| | |
| 141
|
| | This subclass is indented under subclass 140. Apparatus wherein the means opposing the passage of fluid
comprises a succession of baffles having slight clearance with each
other to impede the passage of fluid by the tortuous path made thereby. |
| | |
| 142
|
| | This subclass is indented under subclass 140. Apparatus wherein the means opposing the passage of fluid
is mounted or positioned on the working member. |
| | |
| 143
|
| | This subclass is indented under subclass 142. Apparatus wherein the means opposing the passage of fluid
is mounted or positioned on the working member circumferential surface. |
| | |
| 144
|
| | This subclass is indented under subclass 140. Apparatus wherein the means opposing the passage of fluid
is mounted or positioned on the side surfaces (i.e., end face) of
the cylinder to engage the adjacent side surface of the working
member. |
| | |
| 145
|
| | This subclass is indented under subclass 104. Apparatus ... in which the working member is provided with
a movable vane having a movable, expandable, adjustable or deformable means
mounted thereon for engaging the cylinder to oppose the passage
of working fluid therepast. |
| | |
| 146
|
| | This subclass is indented under subclass 145. Apparatus in which the means opposing the passage of fluid
is mounted to extend beyond the side edge of the vane to engage
the adjacent working chamber surface. |
| | |
| 147
|
| | This subclass is indented under subclass 145. Apparatus in which the means opposing the passage of fluid
is movable mounted or positioned on the vane. |
| | |
| 148
|
| | This subclass is indented under subclass 147. Apparatus in which the means opposing the passage of fluid
is movable and is biased into engagement or maintained in engagement
with the cylinder surface by means other than an inherent property
of the opposing means.
| | (1)
Note. For example, gravity, centrifugal force, and elasticity
are deemed to be inherent properties of a sealing element. | |
| | |
| 149
|
| | This subclass is indented under subclass 104. Apparatus provided with means mounted or positioned on a
cylinder portion to engage another cylinder portion to oppose the
passage of fluid therepast. |
| | |
| 150
|
| | This subclass is indented under the class definition. Apparatus in which either the cylinder or working member
surface forming part of the expansible working chamber is represented
in a claim by a mathematical formula or equation. |
| | |
| 151
|
| | This subclass is indented under the class definition. Apparatus in which the device is provided with a mass of
material rotatable with the working member and positioned so that
it at least partially opposes unbalanced forces of either (1) the
rotating working member or (2) a movable part thereon moving incident
to the expansion and contraction of the working chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 210, | for devices in which axially spaced rotating working
members counterbalance each other. |
|
| | |
| 152
|
| | This subclass is indented under the class definition. Apparatus in which the working member, cylinder, vane or
abutment is either made of or coated with a nonmetallic material.
| | (1)
Note. A mere seal means made of nonmetallic material for
the vane, abutment or working member is excluded here. See subclass
104 for such seals. | |
| | |
| 153
|
| | This subclass is indented under subclass 152. Apparatus in which the nonmetallic material is a deformable
elastic material. |
| | |
| 154
|
| | This subclass is indented under subclass 153. Apparatus in which the working member is provided with a
vane member thereon, the working member and the vane member comprising
a resilient impartible unit of manufacture. |
| | |
| 155
|
| | This subclass is indented under subclass 154. Apparatus in which the vane extends axially from a working
member side to engage and be deflected by the undulating surface
of the opposing working chamber side to expand and contract the
working chamber. |
| | |
| 156
|
| | This subclass is indented under the class definition. Apparatus in which the working member, cylinder or a partition
element on either the working member or the cylinder comprises a flexible
working chamber portion flexing relative to the expansion and contraction
of the working chamber. |
| | |
| 157
|
| | This subclass is indented under the class definition. Apparatus in which a portion of either the cylinder or the
working member peripheral working chamber surface comprises either
a nonmetallic resilient segment or a resiliently biased segment
to cushion either relatively moving parts of the device at a cyclically occurring,
direction changing movement of a part thereof or to temporarily
accommodate or relieve a working fluid condition tending to exceed
the capacity of the working chamber. |
| | |
| 158
|
| | This subclass is indented under the class definition. Apparatus in which a vane or an abutment is urged to move
at least in one direction by a magnetic field. |
| | |
| 159
|
| | This subclass is indented under the class definition. Apparatus in which the cylinder includes a normally stationary
working chamber surface portion or part that is selectively movable
and when moved, an edge portion thereof adjacent either the working
fluid inlet or outlet controllably modifies working fluid flow therepast. |
| | |
| 160
|
| | This subclass is indented under the class definition. Apparatus wherein the working chamber comprises an outer
movable member surrounding a member of substantially like axial
dimension, adjacent spaced surfaces of which form the working chamber;
a boundary thereof against which working fluid reacts being formed
by the convergence of the adjacent surfaces whereby line contact
therebetween is substantially maintained and at least one of the members
being a working member. |
| | |
| 161
|
| | This subclass is indented under subclass 160. Apparatus in which the outer cylinder member revolves about
its axis. |
| | |
| 162
|
| | This subclass is indented under subclass 161. Apparatus in which there is provided a barrier member for
separating the inlet from the outlet having surface portions forming
part of the working chamber surface, the barrier member moving or
having relative movement with a working chamber surface in a direction
along or parallel to the axis of rotation of the working member
incident to the expansion and contraction of the working member. |
| | |
| 163
|
| | This subclass is indented under subclass 162. Apparatus wherein the inner member forming part of the working
chamber surface rotates about an axis that is at an angle to the
axis of rotation of the cylinder. |
| | |
| 164
|
| | This subclass is indented under subclass 161. Apparatus wherein the inner member forming part of the working
chamber is continuously rotatable about a fixed or movable axis. |
| | |
| 165
|
| | This subclass is indented under subclass 164. Apparatus in which two or more rotating members each rotating
about a separate axis are encompassed by the cylinder. |
| | |
| 166
|
| | This subclass is indented under subclass 164. Apparatus wherein the rotating outer and inner members have
matched projecting and recessed surface portions of substantially
like dimension which interfit during at least a portion of their
rotative movement. |
| | |
| 167
|
| | This subclass is indented under subclass 166. Apparatus in which the internal reacting member is provided
with an opening through which working fluid enters or leaves the
working chamber. |
| | |
| 168
|
| | This subclass is indented under subclass 166. Apparatus in which the recessed portion of the cylinder
comprises a through passage. |
| | |
| 169
|
| | This subclass is indented under subclass 168. Apparatus provided with a partition separating the cylinder
and reacting member during a portion of their rotative movement,
said partition generally being in the shape of a crescent. |
| | |
| 170
|
| | This subclass is indented under subclass 166. Apparatus provided with a partition separating the cylinder
and reacting member during a portion of their rotative movement,
said partition generally being in the shape of a crescent. |
| | |
| 171
|
| | This subclass is indented under subclass 166. Apparatus in which rotary internal reacting member is provided
with five or more projecting portions. |
| | |
| 172
|
| | This subclass is indented under subclass 164. Apparatus wherein either the outer rotating cylinder or
the member forming the inner surface is provided with a movable
divider member (e.g., vane or abutment) having a wall or portion
thereof forming part of the expansible working chamber. |
| | |
| 173
|
| | This subclass is indented under subclass 172. Apparatus wherein the member forming the inner surface includes
a relatively movable member that slides back and forth therein in
a direction that is generally radial thereof, said relatively movable
member also cooperating with the rotating cylinder to form the working chamber. |
| | |
| 174
|
| | This subclass is indented under subclass 172. Apparatus wherein the rotating cylinder includes a relatively
movable member that slides back and forth therein in a direction
that is generally radial thereof, said relatively movable member
also cooperating with the inner rotating surface to form the working
chamber. |
| | |
| 175
|
| | This subclass is indented under subclass 161. Apparatus wherein the member forming the inner surface acting
as an abutment against which the motive fluid reacts is stationary
and is formed with an additional relatively movable member that
moves back and forth in relation thereto, said relatively movable
member also cooperating with the outer fluid actuated surface to
form the working chamber. |
| | |
| 176
|
| | This subclass is indented under subclass 161. Apparatus wherein the rotating cylinder includes a relatively
movable member that is pivoted thereon to oscillate back and forth
in relation to said cylinder, said relatively movable member also
cooperating with the radially spaced inner surface to form the working chamber. |
| | |
| 177
|
| | This subclass is indented under subclass 161. Apparatus wherein the rotating cylinder includes a relatively
movable member that slides back and forth therein in a direction transversely
of said cylinder, said relatively movable member also cooperating
with the radially spaced inner surface to form the working chamber. |
| | |
| 178
|
| | This subclass is indented under the class definition. Apparatus in which a part having a surface portion comprising
a portion of the working chamber is provided at least in part with either
(1) a coating of a material other than that making up the remainder
of the part intimately forming an impartible part thereof or (2)
is made of a single material which has been treated to provide the
working chamber surface portion with specific properties which properties
are different from the properties of the remainder of the part. |
| | |
| 179
|
| | This subclass is indented under the class definition. Apparatus relating to the particular metal or alloy or the
properties of either of which the device is made.
| | (1)
Note. The mere recitation of iron or steel, per se, is excluded
as being too common, however, specifying iron and steel or different
types of iron and steel would be included. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 152, | and the subclasses indented thereunder for such
devices having a nonmetallic material forming part of the working
chamber. |
| 156, | for such devices in which a resilient metallic material
is utilized to form a working chamber surface portion. |
| 178, | for a working chamber plated wear surface. |
SEE OR SEARCH CLASS:
| 428, | Stock Material or Miscellaneous Articles,
subclasses 544+ for metallic stock material or intermediate articles from
which parts for a rotary expansible chamber device can be made. |
|
| | |
| 180
|
| | This subclass is indented under the class definition. Apparatus in which a passage having an orifice conducts
working fluid to or from a working chamber portion separate from
and having a working fluid pressure intermediate the inlet and outlet
pressures of the working chamber, inlet or outlet pressure communicating
with the intermediate pressure zone via the passage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 74, | for similar devices wherein the pressurized fluid
also radially balances the working member. |
|
| | |
| 181
|
| | This subclass is indented under the class definition. Apparatus claimed in combination with features other than
drive means, valving or support structure and not provided for in
preceding subclasses.
SEE OR SEARCH CLASS:
| 417, | Pumps,
subclass 321 and the subclasses indented thereunder for the combination
of a motor driving pump. |
|
| | |
| 182
|
| | This subclass is indented under the class definition. Apparatus in which there is provided a loose or compensation
drive connection either between the working member and its drive shaft
or between adjacent shaft end portions in the vicinity of the working
member to allow for slight or temporary axial misalignment therebetween. |
| | |
| 183
|
| | This subclass is indented under the class definition. Apparatus in which the working member is provided with a
fluid passage means through which working fluid passes enroute to
or from the working chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 189+, | for devices in which residual trapped working fluid
may escape by way of a passage means in the rotating working member. |
|
| | |
| 184
|
| | This subclass is indented under subclass 183. Apparatus in which the working fluid passage means provided
in the working member comprises the slot in which a vane moves incident to
the expansion and contraction of the working chamber. |
| | |
| 185
|
| | This subclass is indented under subclass 183. Apparatus in which the fluid passage means is provided with
a movable flow restrictive means for controlling the flow of working
fluid to or from the working chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 42, | for a speed controlled flow restrictive means positioned
on or within an inner rotating member to control working fluid flow. |
|
| | |
| 186
|
| | This subclass is indented under subclass 183. Apparatus in which the working member is provided with passage
means through which working fluid passes enroute to and from the working
chamber. |
| | |
| 187
|
| | This subclass is indented under subclass 186. Apparatus wherein the passage means includes at least one
working fluid passage passing through or including the working member
axis of rotation. |
| | |
| 188
|
| | This subclass is indented under subclass 183. Apparatus wherein the passage means includes at least one
working fluid passage passing through or including the working member
axis of rotation. |
| | |
| 189
|
| | This subclass is indented under the class definition. Apparatus in which the rotating working member either engages
another rotating member or a cylinder casing or part thereof thereby barring
the passage of working fluid therepast and a relief passage is provided
at the convergence of these elements for the removal of the unexhausted
residual working fluid normally confined thereat in the operation
of the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 183, | and the subclasses thereunder for devices in which
the working fluid enroute to or from the working chamber passes
through at least a portion of the rotating working member. |
|
| | |
| 190
|
| | This subclass is indented under subclass 189. Apparatus wherein at least one of the rotating members has
peripheral lobed portions altered to allow for the escape of fluid
when in meshing relationship with the other rotating member. |
| | |
| 191
|
| | This subclass is indented under the class definition. Apparatus in which a plurality of members rotating about
fixed or substantially fixed axes have surface portions disposed
to maintain or substantially maintain line contact therebetween
against which pressure fluid reacts to thereby form a boundary of
the working chamber; at least one of the rotating members being a
working member.
| | (1)
Note. Included herein are rotating members rotating about
spaced axes, each having portions thereof sweeping a separate one
of intersecting channels which have radially inward and outward
stationary working chamber surface, the chambers intersecting at
a common line of tangency whereat each rotating member may act as
an abutment for the other as the members rotate. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 125+, | for a roller means incidentally forming a part of
the working chamber and functioning merely to perfect the seal relationship
between the working member and the cylinder at the convergence of
their surfaces whereby a boundary of the working chamber is formed
thereby. |
| 189+, | for rotary expansible chamber devices of the interengaging
rotary members type in which provision is made for relieving trapped
fluid. |
SEE OR SEARCH CLASS:
| 73, | Measuring and Testing,
subclass 261 , for expansible chamber rotary piston meters having
interengaging pistons and see the search notes thereunder. |
|
| | |
| 192
|
| | This subclass is indented under subclass 191. Apparatus in which in addition to the interengaging rotating
members there is provided a relatively movable partition element
having engagement with either (1) both rotating members or (2) with
one of the rotating members and the cylinder, the partition element
thereby forming a wall of the working chamber and moving incident
to the expansion and contraction of the working chamber. |
| | |
| 193
|
| | This subclass is indented under subclass 192. Apparatus wherein the displaceable partition element is
moved in a direction along or parallel to the axis of rotation of
the working member of which it is a part. |
| | |
| 194
|
| | This subclass is indented under subclass 101. Apparatus in which each of the coacting rotating members
comprises an elongate circumferential surface complementary to the
other and progressively enlarged or reduced from end to end thereof. |
| | |
| 195
|
| | This subclass is indented under subclass 191. Apparatus in which the axes of a working member and at least
one other coacting rotating member are not parallel. |
| | |
| 196
|
| | This subclass is indented under subclass 191. Apparatus having three or more rotating members at least
one of which has a peripheral surface engaging the peripheral surface
of two or more other rotating members. |
| | |
| 197
|
| | This subclass is indented under subclass 196. Apparatus in which the peripheral surfaces of the interengaging
rotary members are formed with intermeshing teeth or ribs and grooves either
in the form of a helix or discontinuous, angularly related, straight
line segments (i.e., herringbone shape). |
| | |
| 198
|
| | This subclass is indented under subclass 191. Apparatus in which at least one of the rotating members
partakes of a step by step rotary movement.
SEE OR SEARCH CLASS:
| 74, | Machine Element or Mechanism, appropriate subclasses, for mechanical movements
providing for step by step rotation. |
|
| | |
| 199
|
| | This subclass is indented under subclass 191. Apparatus comprising two or more spaced apart sets or groups
of interengaging rotary members each set or group being, per se,
capable of performing a pump or motor operation. |
| | |
| 200
|
| | This subclass is indented under subclass 199. Apparatus including a plurality of sets of interengaging
rotating members which are longitudinally spaced and at least one
rotating member of each set rotating on a common axis. |
| | |
| 201.1 | Helical or herringbone: |
| | This subclass is indented under subclass 191. Apparatus wherein the surface portions of the interengaging
rotary member are formed with intermeshing teeth or ribs and grooves,
the teeth or ribs and grooves being in the form of a helix or discontinuous,
angularly related, straight line segment (i.e., herringbone shape). |
| | |
| 202
|
| | This subclass is indented under subclass 201.1. Apparatus in which each rotating member includes axially
spaced ribs or grooves extending thereabout in reverse directions. |
| | |
| 203
|
| | This subclass is indented under subclass 201.1. Apparatus in which the device is provided with a means for
applying an axial force to at least one of the members in opposition
to an axial force produced by the member in the operation of the
device.
| | (1)
Note. It is not considered that thrust bearings or the like
are force applying means for classification here. Such devices
have been classified on other features. | |
| | |
| 204
|
| | This subclass is indented under subclass 191. Apparatus in which at least one rotating member has a substantially
circular periphery and is affixed to its shaft to rotate therewith
on an axis other than its central or symmetrical axis. |
| | |
| 205
|
| | This subclass is indented under subclass 191. Apparatus in which each of the interengaging rotary members
has the same dimensions and configurations. |
| | |
| 206.1 | Having each radial protuberance of like dimension: |
| | This subclass is indented under subclass 205. Apparatus in which each tooth or toothlike projection of
the interengaging rotary members has the same dimensions and configurations.
| | (1)
Note. Teeth or projections having the same dimensions and
configurations except that they are mirror images of each other
are considered proper subject matter for inclusion here. | |
| | |
| 207
|
| | This subclass is indented under the class definition. Apparatus in which there is provided a plurality of circular
paths or chambers each of which has movable member therein having movement
relative thereto and relative to each other, the circular paths
or chambers include a portion common to each and the working chamber
being formed in part by a surface of one of the movable members
and an end surface or face of another movable member as the movable
members alternately move across the common path, or chamber portion. |
| | |
| 208
|
| | This subclass is indented under the class definition. Apparatus in which there is provided a movable partition
element having end portions in touching relationship with the peripheries
of a plurality of spaced parallel working members thereby form a
boundary of the working chamber or chambers against which working
fluid react. |
| | |
| 209
|
| | This subclass is indented under the class definition. Apparatus comprising two or more working chambers, each
chamber being adapted to receive either a separate rotating working member
or a separate working face or wall of a rotating member common to
each working chamber. |
| | |
| 210
|
| | This subclass is indented under subclass 209. Apparatus having a plurality of spaced members rotating
about the same or different axis, at least one of the members being
spaced in the direction of or along the rotational axis of another
one of the rotating members. |
| | |
| 211
|
| | This subclass is indented under subclass 210. Apparatus provided with either a vane or an abutment movable
in a direction along or parallel to the axis of rotation of the
rotating members and movable incident to the expansion and contraction
of the respective working chambers or working chamber portions. |
| | |
| 212
|
| | This subclass is indented under subclass 210. Apparatus in which a divider element is interposed between
adjacent sides of the rotating members for engagement or substantial engagement
therewith. |
| | |
| 213
|
| | This subclass is indented under subclass 212. Apparatus in which there is provided three or more rotating
members and a separate divider element is interposed between adjacent
ends of adjacent rotating member pairs. |
| | |
| 214
|
| | This subclass is indented under subclass 212. Apparatus in which there is provided at least one partition
or abutment member for each of the spaced working members against
which working fluid reacts and means is provided to engage a partition
member of one working member with a partition member of another working
member so that a movement of one of the partition members causes
a concurrent movement of the other partition member. |
| | |
| 215
|
| | This subclass is indented under subclass 209. Apparatus wherein the chambers are axially spaced. |
| | |
| 216
|
| | This subclass is indented under subclass 215. Apparatus in which there is provided in each working chamber
a working member or a working portion thereof in the form of a helix, the
helix extending along or generally parallel to the working member
axis of rotation.
| | (1)
Note. Devices in which a working chamber is partitioned by
a member in the form of a helix so that a working chamber is formed
on each side thereof are considered proper for classification here. | |
| | |
| 217
|
| | This subclass is indented under subclass 215. Apparatus in which either an abutment or a vane is movable
along or parallel to the axis of rotation of the working member. |
| | |
| 218
|
| | This subclass is indented under subclass 217. Apparatus in which the moving vane or abutment is mounted
to move incident to the expansion and contraction of the working
chamber about an axis other than either (1) the axis of rotation
of the working member or (2) an axis parallel thereto. |
| | |
| 219
|
| | This subclass is indented under subclass 217. Apparatus provided with a vane that is movable in a direction
along or parallel to the axis of rotation of the rotating members. |
| | |
| 220
|
| | This subclass is indented under the class definition. Apparatus in which the working member is provided with a
continuous circumferential working portion in the form of a helix
extending from one end to the other end thereof. |
| | |
| 221
|
| | This subclass is indented under the class definition. Apparatus in which there is provided a displaceable abutment
and a displaceable vane, each of which moves incident to the expansion and
contraction of the working chamber. |
| | |
| 222
|
| | This subclass is indented under the class definition. Apparatus in which an abutment comprises a plurality of
relatively movable elements or portions which part to allow a working
portion of the working member to pass therebetween. |
| | |
| 223
|
| | This subclass is indented under the class definition. Apparatus having a vane or abutment which moves incident
to the expansion and contraction of the expansion chamber, said vane
or abutment having primary means and separate and distinct supplemental
means to move the vane or abutment.
| | (1)
Note. Neither centrifugal force nor the weight of a vane
or abutment is considered to be either a primary or a supplementary
moving means. |
| | (2)
Note. The supplementary moving means may concurrently with
the primary moving means move the vane or abutment or it may move
idly in its prescribed path of movement in lagging relationship
with the primary moving means to move the vane or abutment only
when the primary moving means fails. | |
| | |
| 224
|
| | This subclass is indented under the class definition. Apparatus in which there is provided a valve means mounted
on a working fluid partition element of the device. |
| | |
| 225
|
| | This subclass is indented under the class definition. Apparatus in which either an abutment or a vane comprises
or includes a rotatable antifriction member to engage the working
member or the cylinder respectively. |
| | |
| 226
|
| | This subclass is indented under subclass 225. Apparatus in which the vane or abutment has rotation about
an axis either other than the working member axis of rotation or
an axis parallel thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 195, | for interengaging rotating members having nonparallel
axis of rotation. |
| 198, | for interengaging rotary members wherein at least
one of the rotary members is intermittently rotated. |
|
| | |
| 227
|
| | This subclass is indented under subclass 225. Apparatus wherein the abutment or vane is mounted for rotation
on the cylinder or working member respectively and is urged to have relative
rotation with the element (cylinder or working member) to which
it is mounted by means other than the surface of the other element. |
| | |
| 228
|
| | This subclass is indented under the class definition. Apparatus in which a vane or abutment moves or has a component
of movement in a direction along or parallel to the axis of rotation
of the working member incident to the expansion and contraction
of the working chamber. |
| | |
| 229
|
| | This subclass is indented under subclass 228. Apparatus wherein the vane or abutment has to-and-fro straight
line movement along or parallel to the working member axis of rotation. |
| | |
| 230
|
| | This subclass is indented under subclass 229. Apparatus in which the vane or abutment is positively moved
in at least one direction by means other than the cylinder or working
member surface respectively or another vane or abutment and is moved
incident to the expansion and contraction of the working chamber. |
| | |
| 231
|
| | This subclass is indented under subclass 230. Apparatus in which the vane or abutment is positively moved
in both directions. |
| | |
| 232
|
| | This subclass is indented under subclass 231. Apparatus in which the axially sliding vane or abutment
is urged to move in one of the directions by either a resilient
mechanical means or a nonsolid pressurized substance. |
| | |
| 233
|
| | This subclass is indented under subclass 228. Apparatus comprising a movable vane which has oscillatory
movement about an axis normal to and intersecting the working member
rotational axis. |
| | |
| 234
|
| | This subclass is indented under the class definition. Apparatus comprising a vane or abutment which has (1) nonparallel
or (2) semi-circular surface portions to engage adjacent surface
portions of a vane or abutment slot respectively, in which it moves
incident to the expansion and contraction of the working chamber. |
| | |
| 235
|
| | This subclass is indented under the class definition. Apparatus in which the rotary expansible chamber device
is of the sliding vane type and included in the vane slot thereof
for engagement with the vane is either an insert of suitable material
to absorb wear or a rolling means for the prevention of wear.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 104, | for a biased insert providing a seal means between
the vane and the vane slot. |
| 241, | for oscillating bearings mounted in walls of the
working member through which vanes slide. |
|
| | |
| 236
|
| | This subclass is indented under the class definition. Apparatus in which there is provided either a movable vane
or abutment that slides relative to the working member or cylinder respectively
in a direction generally toward or away from the axis of rotation
and other than in a radial plane containing the axis of rotation
of the working member.
| | (1)
Note. A sliding vane or abutment is considered to slide radially
when a plane thereof including or parallel to the plane of a side
face thereof is coincident with a radial plane of the working member.
Where the sliding vane or abutment has nonparallel sides, it is
considered to slide radially if the median plane thereof is coincident
with the radial plane of the working member. | |
| | |
| 237
|
| | This subclass is indented under subclass 236. Apparatus wherein the sliding vane or abutment moves in
an arcuate path. |
| | |
| 238
|
| | This subclass is indented under subclass 236. Apparatus in which the vane or abutment is urged to move
at least in one direction in the operation of the device by means
other than the surface of the cylinder or working member respectively,
another vane or abutment or the weight of the vane or abutment and
is moved incident to the expansion and contraction of the working
chamber. |
| | |
| 239
|
| | This subclass is indented under the class definition. Apparatus in which there is provided a plurality of partitioning
members or partitioning member portions in which either (1) at least one
of the partitioning members remains in a nonworking position while
at least one other partitioning member performs work when the working
member is rotating in one direction and vice versa or (2) a partitioning
member having portions alternately movable to either one of two
positions to perform work whereby the direction of working member
rotation may be reversed. |
| | |
| 240
|
| | This subclass is indented under the class definition. Apparatus in which the cylinder is provided with a plurality
of moving abutments thereon, one of said abutments being connected to
at least one other abutment to move concurrently therewith. |
| | |
| 241
|
| | Apparatus under the class in which either a generally radially
sliding vane or abutment is mounted respectively to the working
member or to the cylinder to have simultaneous oscillating movement
in the direction of rotation of the working member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 138, | for similar devices in which there is an oscillating
seal element between the vane and working member. |
|
| | |
| 242
|
| | This subclass is indented under the class definition. Apparatus provided with an abutment having spaced working
member periphery engaging end portions rockable about an axis and
in the plane of rotation of the working member, the abutment being
moved in each direction by the abutment end portions incident to
the expansion and contraction of the working chamber. |
| | |
| 243
|
| | Apparatus under the class having a moving abutment which
is urged to move in at least one direction by means other than the
working member surface, weight of the abutment or another abutment
and is moved incident to the expansion and contraction of the working member. |
| | |
| 244
|
| | This subclass is indented under subclass 243. Apparatus wherein the abutment is moved in at least one
direction by coacting elements one of which has a surface or groove
of irregular contour for controlling the movement of another element
and the abutment associated therewith.
| | (1)
Note. A mere eccentric, i.e., a circular surface rotating
about an offset axis is not a cam under this definition. See subclass
247 for an abutment that is actuated by an eccentric. | |
| | |
| 245
|
| | This subclass is indented under subclass 244. Apparatus wherein the abutment is moved in each direction
by the coacting elements. |
| | |
| 246
|
| | This subclass is indented under subclass 244. Apparatus in which either a resilient mechanical device
or a nonsolid pressurized substance sequentially urges the abutment
to return to an initial position whereupon the abutment may again
be moved by the irregularly contoured groove or surface. |
| | |
| 247
|
| | This subclass is indented under subclass 243. Apparatus in which the abutment is urged to move in each
direction. |
| | |
| 248
|
| | This subclass is indented under subclass 243. Apparatus in which the abutment is urged into engagement
with the working member by a resilient mechanical means. |
| | |
| 249
|
| | This subclass is indented under subclass 243. Apparatus wherein fluid under pressure exerts a force upon
the abutment to move it into engagement with the working member. |
| | |
| 250
|
| | This subclass is indented under subclass 249. Apparatus wherein the abutment is provided with working
member abuttable portions extending from a common pivot and oscillating in
a common plane and each abuttable portion being adapted to engage
the working member whereby the working member may be rotated in
either direction. |
| | |
| 251
|
| | This subclass is indented under subclass 249. Apparatus in which the abutment is provided with a fluid
passage means through which working fluid passes enroute to or from
the working chamber. |
| | |
| 252
|
| | This subclass is indented under the class definition. Apparatus in which the working member is provided with a
vane and the cylinder encasing the working member is provided with either
a normally closed port means through which the vane or a portion
thereof may be replaced, the replacement of the vane being performed
without dismantling the device. |
| | |
| 253
|
| | This subclass is indented under the class definition. Apparatus in which the working member is provided with a
plurality of vanes thereon, one of said vanes being connected to
at least one other vane to move concurrently therewith.
| | (1)
Note. Each vane may be an end portion of a common blade-like
member. |
| | (2)
Note. An element other than the working member, shaft or
cylinder interposed between or encompassing a plurality of vanes
or abutments and having an abutting or restraining relationship
with adjacent ends of two or more vanes or abutments whereby to
maintain the vanes in a desired spatial relationship is considered
to connect the vanes or abutments and proper for classification
here. | |
| | |
| 254
|
| | This subclass is indented under subclass 253. Apparatus in which two or more vanes are rigidly connected
to each other for simultaneous movement. |
| | |
| 255
|
| | This subclass is indented under subclass 254. Apparatus in which each of two vanes lies in a common plane
passing substantially through the center of the working member. |
| | |
| 256
|
| | This subclass is indented under subclass 253. Apparatus in which a plurality of radially movable vanes
have their divergent end portions engageable by a movable element
encircling the same to control outward movement of the vanes whereby
to simultaneously maintain either a desired clearance or close fitting engagement
of the blades with the cylinder wall surface. |
| | |
| 257
|
| | This subclass is indented under subclass 253. Apparatus wherein an element is provided to engage adjacent
inner ends of a plurality of vanes to simultaneously urge and maintain
the vanes in cylinder wall engagement. |
| | |
| 258
|
| | This subclass is indented under subclass 257. Apparatus wherein the interposed member is a resilient mechanical
device. |
| | |
| 259
|
| | This subclass is indented under the class definition. Apparatus in which a working member is provided with a vane
moved in at least one direction by means other than the weight of
the vane, centrifugal force or the cylinder wall surface and moving
incident to the expansion and contraction of the working chamber. |
| | |
| 260
|
| | This subclass is indented under subclass 259. Apparatus in which the vane is moved in at least one direction
by coacting elements one of which has a surface or groove of irregular
contour for controlling the movements of the other element and the
vane associated therewith.
| | (1)
Note. A circular surface is not considered to have an irregular
contour and is not a cam under this definition. | |
| | |
| 261
|
| | This subclass is indented under subclass 260. Apparatus in which the vane is positively moved in each
direction.
| | (1)
Note. The vane movement in the opposite direction may be
performed by the cam or by other positive vane moving means. | |
| | |
| 262
|
| | This subclass is indented under subclass 261. Apparatus in which the other element of the coacting elements
comprises or includes a pivoted link member intermediate the first
mentioned element and the vane. |
| | |
| 263
|
| | This subclass is indented under subclass 261. Apparatus in which either a resilient mechanical means or
a nonsolid pressurized substance urges the vane in the other direction. |
| | |
| 264
|
| | This subclass is indented under subclass 261. Apparatus wherein the other element is provided with a rotatable
antifriction means to engage the surface or groove of irregular
contour. |
| | |
| 265
|
| | This subclass is indented under subclass 259. Apparatus in which the vane is moved in both directions. |
| | |
| 266
|
| | This subclass is indented under subclass 259. Apparatus wherein the vane is positively urged in one direction,
usually into engagement with the cylinder wall surface, by a resilient mechanical
means. |
| | |
| 267
|
| | This subclass is indented under subclass 266. Apparatus wherein fluid under pressure assists the resilient
mechanical means to urge the vane into cylinder wall engagement. |
| | |
| 268
|
| | This subclass is indented under subclass 259. Apparatus wherein the vane is urged into engagement with
the cylinder wall surface by pressure fluid.
| | (1)
Note. A vane having a lateral lip or flange portion at its
cylinder surface contacting end which is acted upon by fluid pressure
to maintain a vane in sealing engagement with the cylinder wall
surface is not considered to be fluid urged and classification is
based on other features. | |
| | |
| 269
|
| | This subclass is indented under subclass 268. Apparatus in which a plurality of vanes have their opposed
inner surfaces continuously subject to fluid pressure in a zone
of fluid pressure common to each to maintain the vanes in cylinder
wall engagement. |
| | |
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CLASS 418,