| Class 137 | FLUID HANDLING |
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![[List of Pre Grant Publications for class 137 subclass 1]](../as.gif) | ![[List of Patents for class 137 subclass 1]](../ps.gif) | 1 | PROCESSES |
| | 2 |  With control of flow by a condition or characteristic of a fluid |
| | 3 |  Mixing of plural fluids of diverse characteristics or conditions |
| | 4 |  Controlled by consistency of mixture |
| | 5 | Controlled by conductivity of mixture |
| | 6 | Controlled by heat of combustion of mixture |
| | 7 | Controlled by pressure |
| | 8 | For producing uniform flow |
| | 9 | For producing proportionate flow |
| | 10 | By speed of fluid |
| | 11 | For regulating boiler feed water level |
| | 12 | By fluid pressure |
| | 12.5 | Carbonated beverage handling processes |
| | 13 | Affecting flow by the addition of material or energy |
| | 14 | Involving pressure control |
| | 15.01 | Cleaning, repairing, or assembling |
| | 15.02 | Repairing or assembling hydrant (e.g., fireplug, etc.) |
| | 15.03 | Gas or water meter repairing or assembling |
| | 15.04 | Fluid cleaning or flushing |
| | 15.07 | Mechanical cleaning (e.g., pig, etc.) |
| | 15.08 | Repairing, securing, replacing, or servicing pipe joint, valve, or tank |
| | 15.09 | Including joint or coupling |
| | 15.11 | Detecting or repairing leak |
| | 15.12 | Tapping pipe, keg, or tank |
| | 15.16 | With content loading or unloading (e.g., dispensing, discharge assistant, etc.) |
| | 15.17 | Specific valve or valve element mounting or repairing |
| | 15.18 | Valve or valve element assembling, disassembling, or replacing |
| | 15.1 | HIGHSPEED FLUID INTAKE MEANS (E.G., JET ENGINE INTAKE) |
| | 38 | CONTROL BY CHANGE OF POSITION OR INERTIA OF SYSTEM |
| | 39 | With second control |
| | 40 | Position relative body of water (e.g., marine governors) |
| | 43 | Vent opening or closing on tipping container |
| | 44 | By shifting of liquid level |
| | 45 | By pendulum or swinging member |
| | 47 | SPEED RESPONSIVE VALVE CONTROL |
| | 48 | Acceleration responsive valve control |
| | 49 | With manual valve control |
| | 50 | Speed change and excess speed valve control |
| | 51 | With other condition responsive valve control |
| | 53 | Centrifugal mass type (exclusive of liquid) |
| | 59 | FREEZE CONDITION RESPONSIVE SAFETY SYSTEMS |
| | 65 | COMBUSTION FAILURE RESPONSIVE FUEL SAFETY CUT-OFF FOR BURNERS |
| | 67 | DESTRUCTIBLE OR DEFORMABLE ELEMENT CONTROLLED |
| | 68.11 | Destructible element |
| | 68.12 | Combined destructible and fusible element |
| | 68.13 | Explosive actuation |
| | 68.14 | Separable valve coupling or conduit |
| | 68.16 | Tensile or sheer pin or bolt |
| | 68.18 | With alarm or indicator |
| | 68.19 | Rupture disc |
| | 68.21 | Means for holding entire disc after rupture |
| | 68.22 | Disc burst after destruction of additional element |
| | 68.23 | Direct pressure causes disc to burst |
| | 68.27 | Specific weakening point |
| | 68.28 | Integral disc assembly |
| | 68.29 | Knife or cutter causes disc to break |
| | 69 | With counterbalancing element |
| | 70 | Frangible element returns pressure responsive valve |
| | 71 | Having pressure responsive valve |
| | 72 | Heat destructible or fusible |
| | 78.1 | AMBIENT CONDITION CHANGE RESPONSIVE |
| | 803 | FLOW AFFECTED BY FLUID CONTACT, ENERGY FIELD OR COANDA EFFECT (E.G., PURE FLUID DEVICE OR SYSTEM) |
| | 804 | Responsive to condition external of system |
| | 806 | Utilizing diverse fluids |
| | 807 | Utilizing particular fluid |
| | 808 | Means to cause rotational flow of fluid (e.g., vortex generator) |
| | 809 | Plural vortex generators |
| | 810 | Vortex generator as control for system |
| | 811 | Vortex generator in interaction chamber of device |
| | 812 | By tangential input to axial output (e.g., vortex amplifier) |
| | 814 | System comprising plural fluidic devices or stages |
| | 822 | Plural power inputs to single device |
| | 825 | Means to regulate or vary operation of device |
| | 826 | To vary frequency of pulses or oscillations |
| | 827 | By non-fluid energy field affecting input (e.g., transducer) |
| | 829 | By movable element |
| | 833 | Structure of body of device |
| | 834 | Device including passages having V over T configuration |
| | 835 | And feedback passage(s) or path(s) |
| | 836 | With particular characteristics of control input |
| | 838 | And multiple or joined power-outlet passages |
| | 839 | And enlarged interaction chamber |
| | 840 | And vent passage(s) |
| | 841 | Device including passages having V over gamma configuration |
| | 842 | Device including linearly-aligned power stream emitter and power stream collector |
| | 82 | PRESSURE MODULATING RELAYS OR FOLLOWERS |
| | 83 | Jet control type |
| | 84 | Plural series units |
| | 85 | With counter-balancing pressure feedback to the modulating device |
| | 87.01 | SELF-PROPORTIONING OR CORRELATING SYSTEMS |
| | 88 | Mixture condition maintaining or sensing |
| | 89 | Dividing and recombining flow |
| | 91 | By specific gravity |
| | 92 | By viscosity or consistency |
| | 93 | By optical or chemical property |
| | 94 | Fuel controlled by boiler or water system condition |
| | 98 | Self-proportioning flow systems |
| | 99 | Interconnected flow displacement elements |
| | 100 | Flow comparison or differential response |
| | 101 | Flow dividers (e.g., reversely acting controls) |
| | 101.11 | Main line flow displaces or entrains material from reservoir |
| | 101.19 | With electrical controller |
| | 101.21 | Flow displacement element actuates electrical controller |
| | 101.25 | Liquid level response |
| | 101.31 | With measuring type discharge assistant |
| | 102 | Supply and exhaust type |
| | 103 | Vacuum or suction pulsator type (e.g., milking machine) |
| | 106 | Reversing or 4-way valve systems |
| | 107 | Waste responsive to flow stoppage |
| | 109 | Self-controlled branched flow systems |
| | 110 | Dividing and recombining |
| | 111 | Plural inflows |
| | 115.01 | Bypass or relief controlled by main line fluid condition |
| | 115.02 | Liquid level responsive |
| | 115.03 | Flow rate responsive |
| | 115.04 |  Including controlling main line flow |
| | 115.06 | Bypass or relief valve biased open |
| | 115.07 | Pilot valve operated |
| | 115.08 | Carried choke |
| | 115.09 | Choke |
| | 115.11 | Venturi |
| | 115.12 | Flapper |
| | 115.13 | Pressure responsive |
| | 116.3 | With pressure reducing inlet valve |
| | 115.14 | Common sensor for both bypass or relief valve and other branch valve |
| | 115.16 | Bypass or relief valve biased open |
| | 115.18 | Bypass or relief valve responsive to pressure downstream of outlet valve |
| | 115.21 | Plural sensors for single bypass or relief valve |
| | 115.23 | Pilot valve operated |
| | 115.24 | Mechanical movement between sensor and valve |
| | 115.25 | Electrical control |
| | 115.26 | Sensor rigid with valve |
| | 118.01 | Plural outflows |
| | 118.02 | Single actuator operates plural outlets simultaneously |
| | 118.03 | Biased open isolation valve |
| | 118.04 | Flow rate responsive |
| | 118.06 | Pressure responsive |
| | 119.01 | Alternately or successively substituted outflow |
| | 87.02 | Liquid level responsive |
| | 87.03 | Flow rate responsive |
| | 87.05 | Plural sensors |
| | 123 | SIPHONS |
| | 124 | Plural |
| | 125 | Tank truck mounted |
| | 126 | Sequentially discharging in parallel |
| | 128 | Main siphon with auxiliary starting, stopping or resetting siphon |
| | 130 | With discharge-controlling receiver |
| | 132 | Periodic or accumulation responsive discharge |
| | 133 | With manual control |
| | 134 | Control by filling auxiliary tank |
| | 135 | Float-operated inlet to siphon |
| | 136 | Release of trapped air |
| | 140 | With strainer, filter, separator or sediment trap |
| | 141 | With recorder, register, signal, indicator or inspection window |
| | 142 | With flow starting, stopping or maintaining means |
| | 143 | Siphon venting or breaking |
| | 144 | With leakage or entrained air removal |
| | 145 | Pressure applied to liquid in supply chamber |
| | 146 | Plunge or immersion starting |
| | 147 | Pump or liquid displacement device for flow passage |
| | 150.5 | Siphon inlet movable to and from seat |
| | 151 | With valve or closure in-flow passage |
| | 152 | With means for mounting and/or positioning relative to siphon chamber |
| | 153 | Elements |
| | 154 | DIVERSE FLUID CONTAINING PRESSURE SYSTEMS |
| | 155 | Gas lift valves for wells |
| | 156 | Gas pressure discharge of liquids feed traps (e.g., to boiler) |
| | 157 | Gas pressure controlled by amount of liquids in boiler or discharge receiver |
| | 159 | Gas pressure controlled by amount of liquid in trap |
| | 169 | Gas pressure controlled by manual or cyclic means |
| | 170.1 | Foam control in gas charged liquids |
| | 170.2 | Level or pressure responsive |
| | 170.3 | Separate handling of foam |
| | 170.4 | With conditioning trap or chamber |
| | 171 | Fluid separating traps or vents |
| | 172 | Liquids separated from liquid |
| | 173 | Plural discriminating outlets for diverse fluids |
| | 177 | Discriminating outlet for liquid |
| | 178 | With alternately operated inlet and outlet valves |
| | 179 | With non-discriminating gas vent or liquid discharge |
| | 182 | With auxiliary inlet or by-pass valve |
| | 183 | With fluid responsive valve |
| | 197 | Discriminating outlet for gas |
| | 203 | With liquid emptying means |
| | 205 | Liquid filling by evacuating container |
| | 205.5 | Main line flow displaces additive from shunt reservoir |
| | 206 | Gas pressure storage over or displacement of liquid |
| | 207 | Surge suppression |
| | 207.5 | With return of liquid to supply |
| | 208 | Plural units |
| | 209 | With gas maintenance or application |
| | 210 | Gas carried by or evolved from liquid |
| | 211.5 | Gas injected by liquid pressure or flow |
| | 212 | Unitary mounting for gas pressure inlet and liquid outlet |
| | 213 | With liquid level responsive gas vent or whistle |
| | 215 | BACK FLOW PREVENTION BY VACUUM BREAKING (E.G., ANTI-SIPHON DEVICES) |
| | 219 | LARNER-JOHNSON TYPE VALVES; I.E., TELESCOPING INTERNAL VALVE IN EXPANDED FLOW LINE SECTION |
| | 223 | INFLATABLE ARTICLE (E.G., TIRE FILLING CHUCK AND/OR STEM) |
| | 224 | With pressure-responsive pressure-control means |
| | 227 | With gauge or indicator |
| | 230 | Stem attached relief valve |
| | 231 | With coupling means |
| | 232 | With cap |
| | 234.5 | Removable valve head and seat unit (valve insides) |
| | 234.6 | WITH VEHICLE GUIDE OR SUPPORT, E.G., SERVICE STATION |
| | 236.1 | DISTRIBUTION SYSTEMS INVOLVING GEOGRAPHIC FEATURES |
| | 237 | WITH CLEANER, LUBRICATION ADDED TO FLUID OR LIQUID SEALING AT VALVE INTERFACE |
| | 238 | Cleaning or steam sterilizing |
| | 239 | Reverse fluid flow |
| | 240 | With separate material addition |
| | 241 | Steam sterilizing |
| | 242 | Mechanical cleaning |
| | 246 | Liquid supplied at valve interface |
| | 247 | WITH LIQUID VALVES OR LIQUID TRAP SEALS |
| | 247.11 | Liquid seal in liquid flow line; flow liquid forms seal |
| | 247.13 | Valves |
| | 247.25 | Seal replenishers |
| | 247.27 | Plural inlet |
| | 247.29 | Divided and recombined passages |
| | 247.31 | Tangential inlet flow |
| | 247.33 | Downward partition encircles projecting outlet |
| | 247.35 | Submerged inlet pipe end |
| | 247.41 | U-seals |
| | 248 | Seal for relatively movable valving parts |
| | 251.1 | Liquid valves |
| | 255 | PLURAL TANKS OR COMPARTMENTS WITH PARALLEL FLOW |
| | 256 | Sequentially filled and emptied (e.g., holding type) |
| | 259 | With housings, supports or stacking arrangements |
| | 260 | Battery or electrolytic cell replenishment |
| | 262 | Flow dividing compartments |
| | 263 | Tank type manifold (i.e., one tank supplies or receives from at least two others) |
| | 264 | Tank within tank |
| | 265 | With cross connecting passage |
| | 266 | With manifold or grouped outlets |
| | 268 | WITH HOLDER FOR SOLID, FLAKY OR PULVERIZED MATERIAL TO BE DISSOLVED OR ENTRAINED |
| | 269 | CONVERTIBLE |
| | 269.5 | Reversible check |
| | 270 | Unit orientable in a single location between plural positions |
| | 271 | Units interchangeable between alternate locations |
| | 272 | HYDRANT TYPE |
| | 273 | Water crane type |
| | 280 | Plural riser |
| | 281 | Expansible chamber operated by valve actuator for draining riser |
| | 282 | With pump or ejector |
| | 283 | Removable valve and valve seat |
| | 285 | Removable valve with supplemental check valve |
| | 286 | Movable riser actuated valve |
| | 289 | Balanced valve |
| | 290 | Valve actuator extends laterally from bottom of riser |
| | 291 | Valve actuator outside riser |
| | 294 | With casing |
| | 298 | With actuator lubricating means |
| | 299 | With valve at outlet |
| | 300 | With supplemental valve |
| | 301 | Protection against freezing |
| | 309 | REVERSING VALVES - REGENERATIVE FURNACE TYPE |
| | 312 | WITH LEAKAGE OR DRIP COLLECTING |
| | 313 | Relatively movable receptacle or drain pipe and outlet |
| | 314 | Collector for waste liquid derived from solid, gas or vapor |
| | 315.01 | WITH REPAIR, TAPPING, ASSEMBLY, OR DISASSEMBLY MEANS |
| | 315.02 | Blow out preventer or choke valve device (e.g., oil well flow controlling device, etc.) |
| | 315.03 | Solenoid or electromagnetically operated valve |
| | 315.04 | Pressure regulating type valve |
| | 315.06 | Gas or water meter replacing |
| | 315.07 | Assembling or disassembling flexible tube or sleeve type valve |
| | 315.08 | Assembling or disassembling float or float valve |
| | 315.09 | Assembling or disassembling multi way valve |
| | 315.11 | Assembling, disassembling, or removing cartridge type valve (e.g., insertable and removable as a unit, etc.) |
| | 315.16 | Assembling or disassembling pivoted valve |
| | 315.17 | Assembling or disassembling rotary valve |
| | 315.27 | Assembling or disassembling reciprocating valve |
| | 315.33 | Assembling or disassembling check valve |
| | 315.35 | With mechanical movement between actuator and valve |
| | 315.41 | Tool for applying or removing valve or valve member |
| | 316 | With holding means functioning only during transportation assembly or disassembly |
| | 317 | Tapping a pipe, keg, or apertured tank under pressure |
| | 318 | With aperture forming means |
| | 319 | Imperforate closure removing and holding tap |
| | 320 | With valved closure or bung |
| | 321 | Combined rotary and longitudinal movement of valve |
| | 322 | Longitudinal movement of valve |
| | 323 | Rotary movement of valve |
| | 324 | With core ejectors |
| | 326 | Foot valve extraction from top of enclosure |
| | 327 | With disassembly tool engaging feature |
| | 329 | With provision of alternate wear parts |
| | 329.1 | Removable valve with normally disabled supplemental check valve |
| | 330 | NON-VALVING MOTION OF THE VALVE OR VALVE SEAT |
| | 334 | WITH HEATING OR COOLING OF THE SYSTEM |
| | 335 | With burner |
| | 337 | Hot and cold water system having a connection from the hot to the cold channel |
| | 338 | Air heated or cooled (fan, fins, or channels) |
| | 339 | With diversion of part of fluid to heat or cool the device or its contents |
| | 340 | Circulating fluid in heat exchange relationship |
| | 341 | With electric heating element |
| | 342 | WITH FLUID SYSTEM SUPPORT FOR WORKMAN OR NON-SYSTEM MATERIAL |
| | 343 | WITH CASING, SUPPORT, PROTECTOR OR STATIC CONSTRUCTIONAL INSTALLATIONS |
| | 899 | Vehicle |
| | 345 | Locomotive |
| | 347 | Railway car |
| | 351 | Automotive |
| | 355.12 | With hose reel storage means |
| | 899.1 | Guided by means of track or guideway |
| | 899.2 | Aerial or water-supported (e.g., airplane or ship, etc.) |
| | 899.3 | With retractable or nonuse-positionable support wheel |
| | 899.4 | Vehicle supports fluid compressor and compressed fluid storage tank |
| | 355.16 | With hose storage or retrieval means |
| | 355.17 | With means for plural hoses |
| | 355.18 | With flow regulation responsive to hose movement |
| | 355.2 | With retrieval means |
| | 355.26 | Reel with support therefor |
| | 355.28 | Basket or holder for folded coiled hose |
| | 356 | Static constructional installations |
| | 357 | Buildings |
| | 358 | Outside access to portions of the system |
| | 359 | Escutcheon type support |
| | 360 | Wall |
| | 362 | Floor installation |
| | 363 | Ground supporting enclosure |
| | 364 | Valve and meter wells |
| | 365 | With means to center well on valve |
| | 368 | Combined with actuator |
| | 370 | Telescopic well casing |
| | 371 | Covers |
| | 372 | Pipe line transport |
| | 373 | Tapering or tower type |
| | 374 | Furniture and housing furnishings |
| | 375 | Jacketed |
| | 376 | Tank supports |
| | 377 | Guards and shields |
| | 383 | WITH LOCK OR SEAL |
| | 386 | LIQUID LEVEL RESPONSIVE OR MAINTAINING SYSTEMS |
| | 387 | Washing machine cycle control |
| | 388 | Liquid excluding devices for gas inlet or outlets |
| | 389 | With second diverse control |
| | 391 | Control of both inflow and outflow of tank |
| | 392 | Electrical characteristic sensing |
| | 393 | With control fluid connection at desired liquid level |
| | 395 | Control of outflow from tank |
| | 400 | With supplemental or safety closing means or bias |
| | 403 | By weight of accumulated fluid |
| | 404 | In sinking or bucket type float |
| | 405 | Oil burner fuel overflow preventing safety cut-offs |
| | 406 | In communicating measuring vessel |
| | 408 | In gravitating tank |
| | 409 | By float controlled valve |
| | 410 | Valve opened by external means, closing or closing control by float |
| | 411 | Single float controls plural valves |
| | 412 | Servo relay operation of control |
| | 416 | Quick acting |
| | 423 | Plural floats |
| | 424 | With counter-balance |
| | 426 | Level adjustment or selection means |
| | 427 | With float leakage disposal |
| | 428 | In separate communicating float chamber |
| | 429 | Rectilinearly traveling float |
| | 434 | Float arm operated valve |
| | 435 | With valve retarder or cushion means |
| | 436 | With flow guide or restrictor |
| | 438 | Movable nozzle or inlet terminal |
| | 439 | Valve removable from outside container |
| | 440 | With U-shaped inlet pipe having terminal valve |
| | 441 | With refill pipe |
| | 442 | Assembly mounted on and having reciprocating valve element coaxial with inlet pipe |
| | 445 | With toggle or second lever connected to valve |
| | 446 | With interposed cam, gear or threaded connection |
| | 447 | Rotary valve element |
| | 448 | Pivoted valve |
| | 449 | Ball valves |
| | 450 | Balanced valves |
| | 451 | Flexible valve |
| | 453 | Barometric |
| | 454.2 | REMOVABLE VALVE HEAD AND SEAT UNIT |
| | 455 | LINE CONDITION CHANGE RESPONSIVE VALVES |
| | 456 | Safety cut-off requiring reset |
| | 457 | Thermal |
| | 458 | Responsive to both high and low pressure or velocity |
| | 459 | Responsive to change in rate of flow |
| | 461 | High pressure cut-off |
| | 462 | Reset by pressure equalization valve or by-pass |
| | 463 | Fluid released trip |
| | 464 | Fluid counter-biased or unseated valve |
| | 467 | Fluid opened valve requiring reset |
| | 467.5 | Consistency responsive |
| | 468 | Thermal responsive |
| | 469 | Pop valves |
| | 470 | Pop closing valves |
| | 471 | Pop pressure reactor in inflow to valve |
| | 472 | Pop pressure reactor in branched released path |
| | 474 | Lost motion between pop pressure reactor and valve |
| | 475 | Adjustable choke |
| | 479 | Combustion engine induction type |
| | 480 | Valve in auxiliary inlet to induction line |
| | 481 | With manual modifier |
| | 482 | With suction compensator |
| | 483 | With separate reactor surface |
| | 484 | Unbalanced pivoted valve (e.g., unbalanced butterfly type) |
| | 484.2 | Line flow effect assisted |
| | 484.4 | Reactor surface normal to flow |
| | 484.6 | Reactor surface separated from flow by apertured partition |
| | 485 | Pilot or servo controlled |
| | 486 | Responsive to change in rate of fluid flow |
| | 487.5 | Electrically actuated valve |
| | 488 | Fluid pressure type |
| | 493 | Bi-directional flow valves |
| | 493.1 | One head and seat carried by head of another |
| | 493.2 | Supporting valve only spring biased |
| | 493.3 | Supporting valve spring carried by supporting valve |
| | 493.6 | Both valves spring biased |
| | 493.7 | Axes of ports perpendicular |
| | 493.8 | Axes of ports parallel |
| | 493.9 | Axes of ports co-axial |
| | 494 | With separate connected fluid reactor surface |
| | 495 | With manual or external control for line valve |
| | 496 | Valve closes in responses to reverse flow |
| | 497 | Responsive to change in rate of fluid flow |
| | 498 | Valve closes in response to excessive flow |
| | 499 | Turbine or swinging vane type reactor |
| | 500 | Expansible chamber subject to differential pressures |
| | 501 | Pressures across fixed choke |
| | 502 | With Venturi tube having a connection to throat |
| | 503 | Pressures across flow line valve |
| | 504 | Movable deflector or choke |
| | 505 | With opening bias (e.g., pressure regulator) |
| | 505.11 | With relief valve |
| | 505.12 | Multi-stage |
| | 505.13 | Senses inlet pressure |
| | 505.14 | Bias variable during operation |
| | 505.18 | Balanced valve |
| | 505.19 | Liquid level responsive gas flow control |
| | 505.2 | With protective separator |
| | 505.21 | Main flow through isolated reactor chamber |
| | 505.22 | Through external pipe |
| | 505.25 | Apertured reactor surface surrounds flow line |
| | 505.26 | Reactor surface separated by apertured partition |
| | 505.27 | In valve stem |
| | 505.29 | Valve stem passes through the aperture |
| | 505.3 |  Plural reactor surfaces |
| | 505.31 | Reactor is an inverted cup having liquid seal |
| | 505.34 | Valve head in inlet chamber |
| | 505.36 | Reactor surface is diaphragm |
| | 505.38 | Reactor surface closes chamber |
| | 505.39 | Valve head in inlet chamber |
| | 505.4 | Reactor surface is inverted cup (float) |
| | 505.41 | Rectilinear valve stem rigid with reactor surface |
| | 505.42 | With valve closing bias |
| | 505.44 | Valve head on yoke |
| | 505.46 | Reactor operatively connected to valve by mechanical movement |
| | 505.47 | With mechanical movement between actuator and valve |
| | 506 | Plural valves biased closed |
| | 507 | With means for mounting or connecting to system |
| | 508 | Valve seat or external sleeve moves to open valve |
| | 509 | Valve seating in direction of flow |
| | 511 | Direct response valves (i.e., check valve type) |
| | 512 | Plural |
| | 512.1 | Dividing and recombining in a single flow path |
| | 512.2 | One valve carries head and seat for second valve |
| | 512.3 | Diverse types |
| | 512.4 | Integral resilient member forms plural valves |
| | 512.5 | With common biasing means |
| | 513 | Mechanically interconnected |
| | 513.3 | With leak passage |
| | 514 | With retarder or dashpot |
| | 515 | In couplings for coaxial conduits, e.g., drill pipe check valves |
| | 515.3 | Valve seat threaded into a coupling element |
| | 515.5 | Valve seat formed on or carried by a coupling element |
| | 515.7 | Valve seat clamped between coupling elements |
| | 516 | With means for selecting area of valve or seat |
| | 516.11 | Single head, plural ports in parallel |
| | 516.25 | Plural seating |
| | 517 | Biased open |
| | 522 | With external means for opposing bias |
| | 524 | With bias adjustment indicator |
| | 843 | Resilient material valve |
| | 844 | Having expansible port |
| | 851 | Center flexing strip |
| | 852 | With valve member flexing about securement |
| | 860 | Annulus |
| | 526 | Vacuum relief type |
| | 527 | Pivoted valves |
| | 527.2 | Head retained by removable closure |
| | 527.4 | Valve head movably connected for accommodation to seat |
| | 527.6 | Valve mounted on end of pipe |
| | 527.8 | Weight biased |
| | 528 | Reciprocating valves |
| | 529 | Plural biasing means |
| | 530 | Cam means for adjusting and fixing bias |
| | 531 | Varying effective lever arm |
| | 532 | Weight biased |
| | 535 | Spring biased |
| | 536 | With means to protect spring from fluid |
| | 537 | Spring under tension |
| | 538 | Piston-type valves |
| | 539 | Ball valves |
| | 540 | Spring coaxial with valve |
| | 540.11 | Broken valve parts retainer |
| | 541 | Spring in inlet |
| | 542 | Valve stem extends through fixed spring abutment |
| | 543.13 | Spring abuts removable valve stem guide |
| | 543.15 | Head slides on guide-rod concentric with spring |
| | 543.17 | Spring guides valve head |
| | 543.19 | Cage-type guide for stemless valves |
| | 543.21 | Guide means integral and coplanar with valve disk |
| | 543.23 | Head between spring and guide |
| | 544 | WITH MEANS FOR SEPARATING SOLID MATERIAL FROM THE FLUID |
| | 545 | Plural separating elements |
| | 546 | Sediment chamber |
| | 547 | Movable strainer |
| | 549 | Hollow strainer, fluid inlet and outlet perpendicular to each other |
| | 550 | Planar strainer normal to flow path |
| | 551 | WITH INDICATOR, REGISTER, RECORDER, ALARM OR INSPECTION MEANS |
| | 552 | Plural |
| | 552.7 | Time |
| | 553 | Position or extent of motion indicator |
| | 554 | Electrical |
| | 555 | Selection from plural branches |
| | 556 | Indicator element rigidly carried by the movable element whose position is indicated |
| | 557 | Fluid pressure responsive indicator, recorder or alarm |
| | 558 | Liquid level responsive indicator, recorder or alarm |
| | 559 | Inspection means |
| | 560 | COMBINED |
| | 561R | SYSTEMS |
| | 561A | Non-valved flow dividers |
| | 562 | Faucet connected, sink drained |
| | 563 | Closed circulating system |
| | 564.5 | Main line as motive fluid for follower-type feeder |
| | 565.01 | With pump |
| | 565.11 | Pumped fluid control |
| | 565.17 | Combined with fluid receiver |
| | 565.34 | Reserve or surge receiver |
| | 565.18 | Compressed air supply unit |
| | 565.19 | Hydraulic power unit |
| | 565.37 | Fluid sump |
| | 565.22 | And jet-aspiration type pump |
| | 565.23 | Vacuum pump |
| | 565.24 | Resiliently mounted pump |
| | 565.25 | Hand pump |
| | 565.26 | Multiple inlet with multiple outlet |
| | 565.27 | Downstream cyclic distributor |
| | 565.29 | Plural |
| | 565.35 | With pump bypass |
| | 565.36 | Drain valve actuator mounted on pump |
| | 571 | Plural tanks or compartments connected for serial flow |
| | 572 | Separable with valved-connecting passage |
| | 573 | Fluid progresses by zigzag flow |
| | 574 | Plural compartments formed by baffles |
| | 575 | Plural top-to-bottom connected tanks |
| | 576 | With communicating opening in common walls of tanks or compartments |
| | 577 | Tank with movable or adjustable outlet or overflow pipe |
| | 580 | With running joint between movable parts of system |
| | 581 | Movable tank |
| | 582 | With antisplash means not in flow passage |
| | 583 | System with plural openings, one a gas vent or access opening |
| | 584 | Access and outlet |
| | 587 | Tank with gas vent and inlet or outlet |
| | 589 | With vented outlet |
| | 590 | Tank with internally extending flow guide, pipe or conduit |
| | 593 | Head-establishing standpipe or expansion chamber (e.g., surge tanks) |
| | 624.11 | Programmer or timer |
| | 624.12 | With independent valve controller |
| | 624.13 | Repeating cycle |
| | 624.18 | Plural, sequential, valve actuations |
| | 624.21 | Clock alarm mechanism controlled |
| | 624.22 | Biased latch, cam operated |
| | 624.27 | Line condition change responsive release of valve |
| | 625 | Multi-way valve unit |
| | 625.11 | Sequential distributor or collector type |
| | 625.12 | Sequentially progressive opening or closing of plural ports |
| | 625.17 | Selective reciprocation or rotation |
| | 625.18 | Plural noncommunicating flow paths |
| | 625.2 | Supply and exhaust |
| | 625.6 | Pilot-actuated |
| | 625.65 | Motor-operated |
| | 625.21 | Rotary valve |
| | 625.25 | Reciprocating valve |
| | 625.28 | Dividing into parallel flow paths with recombining |
| | 625.4 | Multiple inlet with single outlet |
| | 625.42 | Selective opening of plural ports |
| | 625.43 | Four port reversing valves |
| | 625.44 | Pivoted valve unit |
| | 625.46 | Rotary valve unit |
| | 625.48 | Reciprocating valve unit |
| | 626 | Plural petcocks |
| | 627 | Sequential distributor or collector type |
| | 627.5 | Sequentially closing and opening alternately seating flow controllers |
| | 628 | Sequentially progressive opening or closing of plural valves |
| | 629 | Pressure equalizing or auxiliary shunt flow |
| | 630.16 | With subsequent closing of first opened port |
| | 630.18 | Screw-actuated differential valves |
| | 630.19 | Lost motion |
| | 635 | With preselecting means for plural valve actuator |
| | 636 | With selective motion for plural valve actuator |
| | 636.1 | Oppositely movable cam surfaces |
| | 636.2 | Rotation about either of two pivotal axes |
| | 636.3 | Rotation of actuator arm about its pivot and its axis |
| | 636.4 | Reciprocation along and rotation about same axis |
| | 637 | Valves with separate, correlated, actuators |
| | 594 | Plural noncommunicating flow paths |
| | 596 | Supply and exhaust |
| | 597 | Multiple inlet with multiple outlet |
| | 598 | Hydraulic brake line (e.g., hill holders) |
| | 599.01 | Dividing into parallel flow paths with recombining |
| | 599.02 | With fluid coupling (e.g., railway car hose coupling, truck-trailer oil system coupling, etc.) |
| | 599.03 | System having plural inlets |
| | 599.05 | Having digital flow controller |
| | 599.08 | With multi way valve having serial valve in at least one branch |
| | 599.09 | Fluid pressure regulator in at least one branch |
| | 599.11 | Flow passage with bypass |
| | 599.12 | Including mixing feature |
| | 599.13 | Including flowmeter |
| | 599.14 | Including cleaning, treating, or heat transfer feature |
| | 599.16 | Second valve assembly carried by first valve head |
| | 599.17 | With rotary plug having variable restrictor |
| | 599.18 | Carried valve is direct response valve (e.g., check valve, etc.) |
| | 600 | With foam controlling means (e.g., beer, soda faucets) |
| | 601.01 | With common operator |
| | 601.02 | Balanced valve |
| | 601.03 | Single resilient member actuates or forms plural passages |
| | 601.04 | Valves deform to close passage |
| | 601.05 | Rotary valve |
| | 601.06 | Including rigid plate with flexible or resilient seal |
| | 601.07 | Axes of rotation of valves intersect at point |
| | 601.08 | Axes of rotation parallel |
| | 601.12 | Mechanical movement between actuator and non-rotary valve |
| | 601.13 | Fluid actuated or retarded |
| | 601.14 | Electrical actuator |
| | 601.15 | Mechanical movement between actuator and valve |
| | 601.16 | Rotary valve |
| | 601.18 | Having guide or restrictor |
| | 601.2 | Having direct response valve (e.g., check valve, etc.) |
| | 602 | Multiple inlet with single outlet |
| | 603 | Faucet attachment |
| | 888 | Combining by aspiration |
| | 889 | Combining of three or more diverse fluids |
| | 890 | Plural motivating fluid jets |
| | 891 | Flow control by varying position of a fluid inlet relative to entrainment chamber |
| | 892 | With selectively operated flow control means in inlet |
| | 895 | With condition responsive valve |
| | 896 | With means to promote mixing or combining of plural fluids |
| | 605 | With flow control |
| | 861 | With flow control means for branched passages |
| | 862 | With common valve operator |
| | 863 | For valve having a flexible diaphragm valving member |
| | 864 | For valve having a ball head |
| | 865 | With gearing |
| | 866 | Threaded actuator |
| | 867 | Pivoted or rotary motion converted to reciprocating valve head motion |
| | 869 | Having fluid actuator |
| | 870 | With electrical actuation |
| | 871 | Spring biased |
| | 872 | With valve or movable deflector at junction |
| | 873 | Movable deflector spout in lateral port |
| | 874 | Valve or deflector is tubular passageway |
| | 875 | Pivoted valve or deflector |
| | 876 | Rotary valve or deflector |
| | 877 | Biased valve |
| | 883 | Single inlet with multiple distinctly valved outlets |
| | 884 | Sectional block structure |
| | 885 | With fluid actuator |
| | 886 | With threaded actuator |
| | 887 | Containing rotary valve |
| | 613 | Flow path with serial valves and/or closures |
| | 614 | Separable flow path section, valve or closure in each |
| | 614.01 | Common joint and valve seat faces, or sections joined by closing members |
| | 614.02 | Each valve and/or closure operated by coupling motion |
| | 614.05 | Valve- or closure-operated by coupling motion |
| | 614.06 | Coupling interlocked with valve, or closure or actuator |
| | 614.11 | Common actuator |
| | 614.16 | One valve head provides seat for other head |
| | 614.18 | One valve head carries other valve head |
| | 614.19 | Biased valve with external operator |
| | 614.2 | Direct response normally closed valve limits direction of flow |
| | 614.21 | Coaxial oppositely directed seats |
| | 615 | Articulated or swinging flow conduit |
| | 797 | FRANGIBLE |
| | 798 | WITH COUPLING |
| | 800 | WITH CLOSURE |
| | 801 | FAUCETS AND SPOUTS |
| | 802 | MISCELLANEOUS |
| CROSS-REFERENCE ART COLLECTIONS | ||
| | 900 | BUMPLESS MANUAL TO AUTOMATIC RELAYS |
| | 901 | BIASED BALL VALVES WITH OPERATORS |
| | 902 | SLUSH PUMP CHECK VALVES |
| | 903 | RUBBER VALVE SPRINGS |
| | 904 | CUSHION CHECK VALVES |
| | 905 | ROTARY VALVES FOR MULTIPLE GAS BURNERS |
| | 906 | VALVES BIASED BY FLUID "SPRINGS" |
| | 907 | VACUUM-ACTUATED VALVES |
| | 908 | RESPIRATOR CONTROL |
| | 909 | MAGNETIC FLUID VALVE |
| | 910 | DESTRUCTIBLE OR DEFORMABLE ELEMENT CONSTRUCTED OF SPECIFIC MATERIAL |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |