| Class 474 | ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS |
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![[List of Pre Grant Publications for class 474 subclass 1]](../as.gif) | ![[List of Patents for class 474 subclass 1]](../ps.gif) | 1 | CONTROL FOR FORWARD AND REVERSE |
| | 2 |  Cyclical or sequential (e.g., machine controlled, etc.) |
| | 4 | Including separate belts for forward and reverse |
| | 7 | Including coaxial pulleys rotated in opposite directions by single endless belt simultaneously engaging both pulleys |
| | 8 | PULLEY WITH BELT-RECEIVING GROOVE FORMED BY DRIVE FACES ON RELATIVELY AXIALLY MOVABLE COAXIAL CONFRONTING MEMBERS (E.G., EXPANSIBLE CONE PULLEY, ETC.) |
| | 9 | Members are gripping jaws actuated during each rotation of pulley |
| | 11 | Speed responsive |
| | 17 | Load responsive |
| | 22 | Temperature responsive |
| | 23 | Adjusted by power from pulley drive train |
| | 24 | And member has plural, relatively axially movable drive faces |
| | 25 | And pulley shiftable laterally of its axis of rotation |
| | 28 | Fluid pressure actuator for adjustment of member |
| | 29 | Including actuator interconnecting plural pulleys on spaced shafts for simultaneous adjustment |
| | 32 | Plural members forming plural belt-receiving grooves on common axis |
| | 37 | By manual actuator for one or both confronting members |
| | 43 | Including lubrication or particular guide or bearing for movable member |
| | 46 | With spring device |
| | 47 | PULLEY WITH EXPANSIBLE RIM MEANS OR PULLEYS WITH ALTERNATELY USEABLE NESTABLE RIMS |
| | 48 | Nestable rims of diverse kind (e.g., one grooved and the other cylindrical, etc.) |
| | 49 | Structure for variably adjusting radius of rim section |
| | 50 |  By actuator responsive to speed or load |
| | 51 | By fluid pressure actuator or inflatable rim |
| | 52 | Including means interconnecting plural pulleys for simultaneous adjustment |
| | 54 | By actuator having collar concentric with, and movable axially on, pulley axis |
| | 56 | By actuator having collar concentric with, and rotatable in plane perpendicular to pulley axis |
| | 58 | POWER OUTPUT PULLEY SELECTIVELY SHIFTABLE TO DIFFERENT POWER OUTPUT LOCATIONS RELATIVE TO INPUT PULLEY |
| | 61 | POWER INPUT AND OUTPUT PULLEYS ON NONPARALLEL AXES |
| | 64 | PLURAL TURNS OF SAME BELT ABOUT PULLEY AXIS |
| | 65 | With flexible belt-tracking guide helically coiled about pulley |
| | 66 | Plural turns of same belt about axis of each of laterally spaced pulleys |
| | 69 | CONTROL FOR VARIABLE INPUT TO OUTPUT SPEED-RATIO |
| | 70 | Condition responsive (e.g., responsive to speed, load, etc.) |
| | 71 | Cyclical or sequential (e.g., machine controlled, etc.) |
| | 72 | Including intermeshing gears in one drive train |
| | 73 | Including separate belt on each of coaxial pulleys selectively engaged in drive train |
| | 74 | With overrunning clutch |
| | 75 | Selection by tightening belt on selected pulley |
| | 76 | Selection by axially movable pin engaged in opening through selected pulley |
| | 77 | Including coaxial pulleys shiftable axially to align selected pulley with drive belt |
| | 78 | Including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter |
| | 83 | Including mechanism for shifting belt axially on spaced pulleys with tapering drive face |
| | 84 | PLURAL BELTS OR PLURAL OUTPUT LOADS |
| | 85 | Plural belts having interengaged drive surfaces |
| | 86 | Plural output loads |
| | 88 | Plural belts in series via countershaft |
| | 90 | STATIC ELECTRICITY ELIMINATOR |
| | 91 | STRUCTURE FACILITATING LUBRICATION OF BELT, PULLEY, OR GUIDE ROLL |
| | 92 | CLEANING DEVICE FOR BELT, PULLEY, OR GUIDE ROLL |
| | 93 | FLUID-IMPELLING MEANS (E.G., FOR COOLING, ETC.) |
| | 94 | RESILIENT CONNECTION BETWEEN PULLEY OR GUIDE-ROLL RIM AND MOUNT |
| | 95 | HUB FORMED IN SECTIONS AND SEPARABLE BY MOVING SECTIONS RADIALLY APART (E.G., SPLIT PULLEY TO FACILITATE INSTALLATION, ETC.) |
| | 100 | AUXILIARY ENDLESS BAND FOR GUIDING BELT OR HOLDING BELT ENGAGED WITH PULLEY |
| | 101 | MEANS FOR ADJUSTING BELT TENSION OR FOR SHIFTING BELT, PULLEY OR GUIDE ROLL |
| | 102 | With sensor for controlling operation of shifter to correct belt training deviation |
| | 103 | Shifter driven by electrical or fluid motor |
| | 105 | Sensor actuates pawl-and-rachet mechanism to operate shifter |
| | 106 | Sensor includes rotatable belt-engaging surface |
| | 109 | Load responsive tension adjuster or shifter |
| | 110 | Tension adjuster or shifter driven by electrical or fluid motor |
| | 111 | Tension adjuster has surface in sliding contact with belt |
| | 112 | Pulley or guide roll has eccentric mount for shifting or tensioning movement |
| | 113 | Pulley shifter |
| | 114 | Pulley on shaft of adjustably mounted drive motor |
| | 116 | Pulley is vehicle drive pulley (e.g., bicycle sprocket, etc.) |
| | 117 | Spring biased in belt-tensioning direction |
| | 118 | Pulley shiftable into engagement with exterior of belt surface |
| | 119 | Belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley |
| | 120 | Pulley has slot in groove-forming flange facilitating belt installation or removal |
| | 121 | For shifting exterior surface of belt into engagement with pulley |
| | 122 | For shifting belt laterally |
| | 123 |  By adjusting axial inclination of belt guide roll |
| | 124 | With idler support having circumferentially spaced rollers to receive shifted belt |
| | 125 | Including means for selectively clutching coaxial idler support to pulley |
| | 126 | Shifter actuated by screw or gear drive |
| | 127 | Shifter actuated by flexible cable |
| | 128 | Shifter actuated by handle pivoted about fixed axis |
| | 130 | Portable hand tool for removing or installing belt |
| | 131 | Guide roll forms belt-thickness gap with pulley |
| | 132 | Gravity actuated guide roll for tensioning belt |
| | 133 | Guide roll mounted for movement of its axis along arcuate path to tension belt |
| | 134 | Plural guide rolls engaging single belt |
| | 135 | Guide roll spring biased in belt-tensioning direction |
| | 136 | Guide roll mounted for movement of its axis along rectilineal path to tension belt |
| | 139 | PULLEY ENGAGES EXTERIOR SURFACE OF BELT |
| | 140 | BELT GUIDE HAS SURFACE IN SLIDING CONTACT WITH BELT |
| | 141 | PULLEY HAVING CIRCUMFERENTIALLY SPACED PORTIONS OF DRIVE FACE SPACED UNEQUAL DISTANCES FROM PULLEY AXIS OF ROTATION (E.G., ELLIPTICAL PULLEY, ETC.) |
| | 142 | MAGNETIC ATTRACTION BETWEEN BELT AND PULLEY |
| | 143 | FABRIC DRIVE FACE ON BELT AND PULLEY |
| | 144 | GUARD OR HOUSING FOR BELT OR PULLEY |
| | 148 | SYSTEM INCLUDING SPACED PULLEYS INTERCONNECTED BY A BELT |
| | 149 | Positive drive pulley and friction drive pulley connected by same belt |
| | 150 | With frame or mount for system |
| | 151 | AUXILIARY MEMBER REMOVABLY ATTACHED TO PULLEY OR GUIDE ROLL FOR PREVENTING LATERAL DISPLACEMENT OF BELT |
| | 152 | POSITIVE DRIVE PULLEY OR GUIDE ROLL |
| | 153 | With particular belt |
| | 158 | And additional coaxial surface for engaging same belt in shifted condition or for engaging auxiliary belt, brake, or clutch member |
| | 159 | Coaxial surface is belt-engaging surface on friction drive pulley |
| | 160 | Coaxial surface is belt-engaging surface on positive drive pulley of different circumference |
| | 161 | Having nonmetallic component |
| | 162 | Having belt-engaging surfaces on discrete circumferentially spaced, relatively movable or replaceable members |
| | 164 | Having axially spaced sets of belt-engaging surfaces |
| | 165 | With stationary support for pulley or guide roll |
| | 166 | FRICTION DRIVE PULLEY OR GUIDE ROLL |
| | 167 | With particular belt |
| | 168 | Including plural, coaxial, circumferential belt-receiving grooves |
| | 171 | And additional coaxial surface for engaging same belt in shifted condition or for engaging auxiliary belt, brake, or clutch member |
| | 172 | Guide roll on axis perpendicular to top surface of belt for engaging side of belt |
| | 174 | Pulley or guide roll including circumferential belt-receiving groove |
| | 175 | Groove formed by rugate or circumferentially spaced drive surfaces |
| | 176 | Groove formed by multiple, abutting, circumferentially connected members |
| | 177 | And circumferentially continuous belt-engaging layer or insert of diverse material added on or between groove-forming flanges |
| | 179 | Including connected discrete axially spaced groove-forming flanges |
| | 184 | Pulley or guide roll having plural, discrete belt-engaging faces for engaging flat belt |
| | 188 | Including grooves or openings in cylindrical belt-engaging surface (e.g., for escape of air, etc.) |
| | 190 | Including nonmetallic belt-engaging surface portion |
| | 195 | With spokes connecting rim to hub |
| | 197 | Cylindrical rim interconnected to axially spaced support members |
| | 198 | With stationary support for pulley or guide roll |
| | 200 | MOBIUS BELT |
| | 201 | BELT HAVING DRIVE SURFACES ON OPPOSITE SIDE EDGES OF STACKED PLATES HAVING PLANAR FACES PERPENDICULAR TO DIRECTION OF BELT MOVEMENT |
| | 202 | POSITIVE DRIVE BELT |
| | 203 | Drive surfaces on belt formed by spherical or hemispherical elements |
| | 204 | Drive surfaces on belt formed in or interconnected by continuous flexible member |
| | 206 | Belt formed of rigid links |
| | 207 | Including nonmetallic part |
| | 208 | Including wire member coiled about pivotal axis between links |
| | 209 | Including ball or roller bearing circumferentially spaced about pivotal axis between links |
| | 210 | Links pivotable about diverse axes during operation (e.g., "universal" connection facilitating alignment with sprockets in diverse planes) |
| | 212 | Link including integral surfaces forming inwardly opening groove (e.g., silent chain, etc.) |
| | 213 | Plural links having laterally aligned groove-forming surfaces |
| | 218 | Including diverse member for interconnecting opposite ends to complete loop (e.g., repair link for broken chain, etc.) |
| | 219 | Including separate locking member for retaining link-connector in laterally aligned openings through adjacent links |
| | 220 | Common locking member retains longitudinally spaced connectors |
| | 222 | Threaded connection between connector and locking member |
| | 223 | Locking member received in annular groove extending entirely around circumference of connector |
| | 224 | Locking member includes portion disposed within opening which receives connector |
| | 226 | Link including discrete members forming laterally spaced sides of opening for pulley tooth |
| | 227 | With particular structure facilitating disassembly of adjacent links |
| | 228 | With discrete connector extending through laterally aligned apertures in adjacent links |
| | 232 | Link including common member forming laterally spaced sides of opening for pulley tooth |
| | 237 | FRICTION DRIVE BELT |
| | 238 | Including plural interconnected and transversely spaced pairs of oppositely facing side-drive surfaces (e.g., plural "V-belts", etc.) |
| | 239 | Having drive surface on helically coiled wire or cord |
| | 240 | Including plural interconnected members each having a drive surface facing in a common direction |
| | 241 | Forming imbricate structure |
| | 242 | Belt has oppositely facing side drive surfaces (e.g., "V-belt", etc.) |
| | 243 | Surfaces on ball or roller elements |
| | 244 | Oppositely facing surfaces are on pair of discrete elements |
| | 246 | Plural, inwardly facing drive surfaces along the direction transverse to longitudinal extent of belt |
| | 248 | Including link-chain coextensive with continuous surface belt |
| | 249 | Including groove, openings or pockets formed in belt surface and arranged along entire length of belt (e.g., for flexibility, air escape, etc.) |
| | 250 | Grooves transversely extending on belt surface |
| | 252 | Groove continuous and longitudinally extending |
| | 253 | Including particular means connecting opposite ends to form loop |
| | 254 | Connected by adhering surface on one end to surface on other end (e.g., by adhesive, heat, seal, etc.) |
| | 255 | Including discrete connector |
| | 259 | Drive surface on single sheet or web wound in plural, completely overlying convolutions |
| | 260 | Including embedded elongated strand having multiple components or layers of diverse materials |
| | 261 | Including plural superposed layers each having strands particularly oriented relative to belt dimension |
| | 262 | Strands in the layers are oblique to longitudinal run of belt (e.g., plural layers of bias fabric, etc.) |
| | 263 | Including discrete embedded fibers |
| | 264 | Including plural layers of different elastomeric materials |
| | 265 | Having trapezoidal cross section (e.g., "V-belt", etc.) |
| | 266 | Including fabric web (e.g., knit, woven, etc.) |
| | 267 | Fabric having particular knit or weave |
| | 268 | And additional coating, layer, or reinforcement of diverse kind of material |
| | 272 | Including metallic drive face |
| | 273 | MISCELLANEOUS |
| CROSS-REFERENCE ART COLLECTIONS | ||
| | 900 | PHASE VARIATOR |
| | 901 | PULLEY OR GUIDE ROLL FOR TRACK OF ENDLESS TRACK VEHICLE |
| | 902 | PARTICULAR CONNECTION BETWEEN RIM AND HUB |
| | 903 | PARTICULAR CONNECTION BETWEEN HUB AND SHAFT |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |