| Patents > Guidance, Tools, and Manuals > Classification > Class Schedule |
|
|
|
| Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
|
| You are viewing a USPC Schedule. |
|
| Class 474 | ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS |
| Click here for a printable version of this file | |
![[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 |
This page is produced by the Office of Classification Support (Office of Patent Classification) for the Reference Tools Project.
Please send questions and comments to usptoinfo@uspto.gov .
Note: The Patent and Trademark Depository Library Program (PTDLP) administers a nationwide network of public, state and academic libraries designated as Patent and Trademark Depository Libraries authorized by 35 U.S.C. 13 to: Disseminate Patent and Trademark Information Support Diverse Intellectual Property Needs of the Public. PTDL Contact Information
Note: For information/comments on electronic information products, such as purchasing USPTO data, or to discuss system requirements for magnetic tape products, contact:
Information Products Division -- U.S. Patent and Trademark Office
Information Products Division
Contact Information
Or, browse
their on-line catalog.
The Inventors Assistance Center is available to help you on patent matters.Send questions about USPTO programs and services to the USPTO Contact Center (UCC). You can suggest USPTO webpages or material you would like featured on this section by E-mail to the webmaster@uspto.gov. While we cannot promise to accommodate all requests, your suggestions will be considered and may lead to other improvements on the website. |
|
|
=online
business system 
=fees 
=forms
=help 
=laws/regulations 
=definition
(glossary)