US Patent Class 188
BRAKES
 Electronic File Wrappers |  Electronic Patent Documents |  Paper Patent Documents | Current as of: June, 1999
|  and Services |
| Electronic File Wrappers | Electronic Patent Documents | Paper Patent Documents | Current as of: June, 1999
| and Services |
| DF | CLASS NOTES | |
| 1.11 R | DF | WITH CONDITION INDICATOR |
| 1.11 W | DF | .~ Wear |
| 1.11 L | DF | .~.~ Electrical |
| 1.11 E | DF | .~ Electrical |
| 1.12 | DF | TO RETARD ROLLING OF CASTER |
| 2 R | DF | VEHICLE |
| 3 R | DF | .~ Train |
| 3 H | DF | .~.~ Fluid pressure vehicle |
| 4 R | DF | .~ Wheel and ground |
| 4 B | DF | .~.~ Rotary brake member |
| 5 | DF | .~ Ground-engaging |
| 6 | DF | .~.~ Sprag |
| 7 | DF | .~.~ Anchors |
| 8 | DF | .~.~ Sled |
| 9 | DF | .~ Wagon |
| 10 | DF | .~.~ Four-wheel |
| 11 | DF | .~.~ Divided beam |
| 12 | DF | .~.~ Running gear support |
| 13 | DF | .~.~.~ Divided beam |
| 14 | DF | .~.~ Hayrack type |
| 15 | DF | .~.~ Retreating shoe |
| 16 | DF | .~ Independent wheel |
| 17 | DF | .~ Hub or disk |
| 18 R | DF | .~.~ Motor vehicle |
| 18 A | DF | .~.~.~ Disc brakes |
| 19 | DF | .~ Cart |
| 20 | DF | .~ Children's carriages |
| 21 | DF | .~ Truck |
| 22 | DF | .~.~ Two-wheel |
| 23 | DF | .~.~.~ Ground-engaging |
| 24.11 | DF | .~ Velocipede (e.g., bicycle, etc.) |
| 24.12 | DF | .~.~ Including mechanism for opposed gripping of wheel rim or tire |
| 24.13 | DF | .~.~.~ Wheel rim configured to cooperate with components |
| 24.14 | DF | .~.~.~ Having means to increase braking force (e.g., self-energizing brake, etc.) |
| 24.15 | DF | .~.~.~.~ Variable leverage actuator |
| 24.16 | DF | .~.~.~.~ Plural brakes having common actuator |
| 24.17 | DF | .~.~.~ Actuation controlled by back-pedalling |
| 24.18 | DF | .~.~.~ With means to lock brake in actuated position |
| 24.19 | DF | .~.~.~ Having means to adjust spacing between brake component and wheel rim or tire |
| 24.21 | DF | .~.~.~ Having center-pull, cable-type actuator for mechanism |
| 24.22 | DF | .~.~.~ Specific actuator element structure |
| 25 | DF | .~.~ Roller |
| 26 | DF | .~.~ Hub or disk |
| 27 | DF | .~.~ Pivoted wheel |
| 28 | DF | .~ Clasp |
| 29 | DF | .~ Top shoes |
| 30 | DF | .~ One-way |
| 31 | DF | .~ Positive lock |
| 32 | DF | .~ On ground |
| 33 | DF | .~ Railway |
| 34 | DF | .~.~ Train |
| 35 | DF | .~.~ Wheel and rail |
| 36 | DF | .~.~.~ Chock |
| 37 | DF | .~.~.~.~ Roller shoe |
| 38 | DF | .~.~ Track |
| 38.5 | DF | .~.~.~ Plural abutments selectively engageable by vehicle-carried means, e.g., car spotter |
| 39 | DF | .~.~.~ Rotary shoe |
| 40 | DF | .~.~.~ Slot |
| 41 | DF | .~.~ Rail |
| 42 | DF | .~.~.~ Carrier type |
| 43 | DF | .~.~.~ Grippers |
| 44 | DF | .~.~.~.~ Automatic |
| 45 | DF | .~.~.~.~ Wheel clamps |
| 46 | DF | .~.~ Equalizing series |
| 47 | DF | .~.~ Connected trucks |
| 48 | DF | .~.~ Maximum traction type |
| 49 | DF | .~.~ Four wheel opposing |
| 50 | DF | .~.~.~ Open center |
| 51 | DF | .~.~.~ Divided beam |
| 52 | DF | .~.~ Four wheel spreading |
| 53 | DF | .~.~.~ Divided beam |
| 54 | DF | .~.~.~.~ Locomotive type |
| 55 | DF | .~.~.~.~ Mine car type |
| 56 | DF | .~.~ Clasp |
| 57 | DF | .~.~ Top shoes |
| 58 | DF | .~.~ Disk on axle |
| 59 | DF | .~.~.~ Side shoes |
| 60 | DF | .~.~ Positive lock |
| 61 | DF | .~.~ One-way |
| 62 | DF | .~.~ On track |
| 63 | DF | .~.~.~ Catchers |
| 2 A | DF | .~ Braking torque regulators |
| 2 D | DF | .~ Bowdin wire-operated |
| 2 F | DF | .~ Wheelchair brakes |
| 64 | DF | WHEEL AND STRAND |
| 65.1 | DF | STRAND |
| 65.2 | DF | .~ With attaching means |
| 65.3 | DF | .~ Plural brakes |
| 65.4 | DF | .~ Tortuous grip |
| 65.5 | DF | .~.~ Adjustable |
| 67 | DF | ROD |
| * | DD | WHEEL |
| 68 | DF | .~ Frictional and positive |
| 69 | DF | .~ Positive lock |
| 70 R | DF | .~ Axially and transversely movable |
| 70 B | DF | .~.~ Self-energizing |
| 71.1 | DF | .~ Axially movable brake element or housing therefor |
| 71.2 | DF | .~.~ With clutch between load and brake assemblage |
| 71.3 | DF | .~.~ Antipodal, relatively separable brake elements |
| 71.4 | DF | .~.~.~ Annular elements |
| 71.5 | DF | .~.~ Plural rotating elements (e.g., "multidisc") |
| 71.6 | DF | .~.~ With means for cooling brake |
| 71.7 | DF | .~.~ With means to adjust for wear of brake |
| 71.8 | DF | .~.~.~ Self-adjusting means |
| 71.9 | DF | .~.~.~.~ Including unidirectionally rotating screw |
| 72.1 | DF | .~.~ With means for actuating brake element |
| 72.2 | DF | .~.~.~ Self-force-increasing means |
| 72.3 | DF | .~.~.~ And means for retracting brake element |
| 72.4 | DF | .~.~.~ By fluid pressure piston |
| 72.5 | DF | .~.~.~.~ Piston for each of plural elements |
| 72.6 | DF | .~.~.~.~ And/or mechanical linkage |
| 72.7 | DF | .~.~.~ By inclined surface (e.g., wedge, cam or screw) |
| 72.8 | DF | .~.~.~.~ Screw or helical cam |
| 72.9 | DF | .~.~.~ By pivoted lever |
| 73.1 | DF | .~.~ Structure of brake element |
| 73.2 | DF | .~.~.~ Circumferential or circumferentially spaced |
| 73.31 | DF | .~.~ Retainer for brake element |
| 73.32 | DF | .~.~.~ Having means to facilitate changing brake element |
| 73.33 | DF | .~.~.~.~ By manipulation of brake actuator |
| 73.34 | DF | .~.~.~.~.~ Pivotable actuator |
| 73.35 | DF | .~.~.~ Having actuator and means to prevent vibration thereof |
| 73.36 | DF | .~.~.~.~ Including means to prevent vibration of brake element |
| 73.37 | DF | .~.~.~ Having means to prevent vibration of brake element |
| 73.38 | DF | .~.~.~.~ Spring |
| 73.39 | DF | .~.~.~ Including torque member supporting brake element |
| 73.41 | DF | .~.~.~ Including actuator pivotable in plane parallel to axis of rotation of wheel |
| 73.42 | DF | .~.~.~.~ And slidable in that plane |
| 73.43 | DF | .~.~.~ Including actuator slidable in plane parallel to axis of rotation of wheel |
| 73.44 | DF | .~.~.~.~ On axially extending pin |
| 73.45 | DF | .~.~.~.~.~ Plural pins |
| 73.46 | DF | .~.~.~ Including actuator fixed on torque member |
| 73.47 | DF | .~.~.~ Having closed loop type housing |
| 74 | DF | .~ Transversely movable |
| 75 | DF | .~.~ Opposing |
| 76 | DF | .~.~.~ Rim grip |
| 77 R | DF | .~.~ Strap |
| 77 W | DF | .~.~.~ Wrap band type |
| 78 | DF | .~.~ Expanding |
| 79 | DF | .~.~.~ Multiple sets |
| 323 | DF | .~.~.~ Three shoes |
| 324 | DF | .~.~.~.~ Rotary cam operatively abutting shoe ends |
| 325 | DF | .~.~.~ Two shoes |
| 326 | DF | .~.~.~.~ Operators at both ends of each shoe |
| 327 | DF | .~.~.~.~ Anchors adjacent unoperated ends |
| 328 | DF | .~.~.~.~.~ Common anchor pivot or abutment |
| 329 | DF | .~.~.~.~.~.~ Rotary cam abutting shoe ends |
| 330 | DF | .~.~.~.~.~ Rotary cam abutting shoe ends |
| 331 | DF | .~.~.~.~ Adjacent ends operatively connected and not anchored to support |
| 332 | DF | .~.~.~.~.~ Rotary cam abutting shoe ends |
| 333 | DF | .~.~.~.~.~ One end anchored |
| 334 | DF | .~.~.~.~ Anchors at alternate ends |
| 335 | DF | .~.~.~ Radially guided shoe |
| 336 | DF | .~.~.~ Continuous split band |
| 337 | DF | .~.~.~.~ Anchored intermediate ends |
| 338 | DF | .~.~.~.~.~ Rotary cam operatively abutting band ends |
| 339 | DF | .~.~.~.~ Rotary cam operatively abutting band ends |
| 340 | DF | .~.~.~ Lateral guide for shoe |
| 341 | DF | .~.~.~ Anchor |
| 342 | DF | .~.~.~ Self-energizing |
| 343 | DF | .~.~.~ Wedge operator |
| 79.51 | DF | .~.~ Having wear take up or compensating structure |
| 79.52 | DF | .~.~.~ Temperature responsive |
| 79.53 | DF | .~.~.~ Feeler actuated |
| 79.54 | DF | .~.~.~ Actuated in conjunction with other braking element |
| 79.55 | DF | .~.~.~ Actuated by brake operating lever |
| 79.56 | DF | .~.~.~ Having separate adjustment actuator mechanism |
| 79.57 | DF | .~.~.~ Manually operated |
| 79.58 | DF | .~.~.~.~ Brake operator length adjusted |
| 79.59 | DF | .~.~.~.~ Mounted between shoe and a support member |
| 79.61 | DF | .~.~.~.~.~ Causes direct, simultaneous adjustment of plural shoes |
| 79.62 | DF | .~.~.~ Located on or in an operator |
| 79.63 | DF | .~.~.~ Mounted between shoe and a support member |
| 79.64 | DF | .~.~.~.~ Between plural supporting shoes |
| 80 | DF | .~ Rotary shoes |
| 82.1 | DF | .~ One-way brakes |
| 82.2 | DF | .~.~ Reversible |
| 82.3 | DF | .~.~ With disabler |
| 82.34 | DF | .~.~.~ Integral with engager |
| 82.4 | DF | .~.~ With hold out |
| 82.5 | DF | .~.~ Combined or plural diverse types |
| 82.6 | DF | .~.~ Biased flexible band |
| 82.7 | DF | .~.~ Pivoting or flexing detent (e.g., pawl) |
| 82.74 | DF | .~.~.~ Axially moving |
| 82.77 | DF | .~.~.~ On rotating member |
| 82.8 | DF | .~.~ Dragged wedging member |
| 82.84 | DF | .~.~.~ Rolling |
| 82.9 | DF | .~.~ Axially moving |
| 83 | DF | .~ Continuous |
| 84 | DF | .~ Fixed brake |
| 85 | DF | .~ Intermittent |
| 371 | DF | PLASTIC DEFORMATION OR BREAKAGE OF RETARDER ELEMENT (E.G., IMPACT ABSORBER) |
| 372 | DF | .~ And subsequent reverse deformation |
| 373 | DF | .~ Element twisted |
| 374 | DF | .~ Element extruded through or around tool |
| 375 | DF | .~ Element severed by cutting tool |
| 376 | DF | .~ Frangible element |
| 377 | DF | .~ Crushable element |
| 378 | DF | INERTIA OF DAMPING MASS DISSIPATES MOTION (E.G., VIBRATION DAMPER) |
| 379 | DF | .~ Resiliently supported damping mass |
| 380 | DF | .~.~ Supported by mechanical spring |
| 266 | DF | INTERNAL-RESISTANCE MOTION RETARDER |
| 267 | DF | .~ Using magnetic flux |
| 267.1 | DF | .~ Electroviscous or electrorheological fluid |
| 267.2 | DF | .~ Magnetic fluid or material (e.g., powder) |
| 266.1 | DF | .~ Motion damped from condition (e.g., bump, speed change) detected outside of retarder |
| 266.2 | DF | .~.~ Condition actuates valve or regulator |
| 266.3 | DF | .~.~.~ Of the rotary type |
| 266.4 | DF | .~.~.~.~ Having plural openings |
| 266.5 | DF | .~.~.~ Of the pulsating or reciprocating type |
| 266.6 | DF | .~.~.~.~ Side mounted |
| 266.7 | DF | .~ Piezoelectric |
| 266.8 | DF | .~ With failure or malfunction detection |
| 268 | DF | .~ Using yieldable or fluent solid or semisolid |
| 269 | DF | .~ Using diverse fluids |
| 270 | DF | .~ Operating against ambient atmosphere |
| 271 | DF | .~ Combined with surface-friction brake |
| 272 | DF | .~ Combined with mechanism retarded by brake |
| 273 | DF | .~.~ Restricting exhaust from engine |
| 274 | DF | .~ With heat exchanger |
| 275 | DF | .~ With fluid regulated in response to inertia of valve member |
| 276 | DF | .~ With means compensating for change in temperature or viscosity |
| 277 | DF | .~.~ Thermostatic valve type |
| 278 | DF | .~.~.~ Manually adjustable |
| 280 | DF | .~ Relative speed of thrust member or fluid flow |
| 281 | DF | .~ Resistance alters relative to direction of thrust member (e.g., high resistance in one direction, low in the other) |
| 282.1 | DF | .~.~ Via valved orifice in thrust member |
| 282.2 | DF | .~.~.~ Valve actuated by electrical system |
| 282.3 | DF | .~.~.~.~ System initiated by a pressure change or feedback |
| 282.4 | DF | .~.~.~.~ System having distinct selections (e.g., hard, medium, soft) |
| 282.5 | DF | .~.~.~ Flexible flap-type valve (e.g., compression washers) |
| 282.6 | DF | .~.~.~.~ Having flow passage, cutout, aperture, slot, etc. |
| 282.7 | DF | .~.~.~ Ball-type valve |
| 282.8 | DF | .~.~.~ Spring-loaded valve |
| 282.9 | DF | .~.~.~.~ Adjusting the tension via (a) compressing or expanding or (b) different strength springs |
| 283 | DF | .~ Piston having a restrictable opening (e.g., apertured plate) in a fixed volume chamber |
| 283.1 | DF | .~.~ Vortex flow passages |
| 284 | DF | .~ Position of thrust member relative to chamber |
| 285 | DF | .~.~ Having a fluid flow passage adjusted manually (e.g., threaded plug, threaded rod, gearing) |
| 286 | DF | .~.~ Having aperture in chamber wall |
| 287 | DF | .~.~.~ Plural, successively encountered apertures |
| 288 | DF | .~.~ Having varying area of chamber passageway for thrust member |
| 289 | DF | .~.~ Having varying area of metering rod extending through orifice in thrust member |
| 290 | DF | .~ Using a rotary-type fluid damper |
| 291 | DF | .~.~ Including clutch |
| 292 | DF | .~.~ Gear pump |
| 293 | DF | .~.~ Driving relatively moving element which causes flow of brake fluid |
| 294 | DF | .~.~.~ With means for regulating movement of element |
| 295 | DF | .~.~.~ Comprising rectilinearly reciprocating piston |
| 296 | DF | .~.~ Driving radial vanes which cause toroidal flow of brake fluid |
| 297 | DF | .~ Having a thrust member with a variable volume chamber (e.g., coaxial or telescoping tubes, compensating reservoir) |
| 298 | DF | .~.~ Forming flexible wall enclosure for fluid |
| 301 | DF | .~.~ Causing air suction in chamber |
| 302 | DF | .~.~ Rectilinear reciprocation of piston caused by arcuately oscillating frame, shaft, arm, axle, etc. |
| 303 | DF | .~.~.~ Pistons reciprocating oppositely in nonaligned cylinders |
| 304 | DF | .~.~.~ Dual pistons |
| 305 | DF | .~.~.~ Piston reciprocating along axis of oscillation |
| 306 | DF | .~.~ Arcuately oscillating thrust member |
| 307 | DF | .~.~.~ Resilient or radially urged vane |
| 308 | DF | .~.~.~ Causing fluid flow through hub of thrust |
| 309 | DF | .~.~.~.~ With manually adjusted valve in hub |
| 310 | DF | .~.~.~ With means for manually adjusting fluid flow |
| 312 | DF | .~.~ Having piston rod extending through ends of chamber |
| 313 | DF | .~.~ With valve controlling fluid flow between chambers or compartments of the chamber |
| 314 | DF | .~.~.~ With reservoir for fluid |
| 315 | DF | .~.~.~.~ Annular reservoir |
| 316 | DF | .~.~ Fluid through or around piston within chamber |
| 317 | DF | .~.~.~ Via fixed or variable orifice in piston |
| 318 | DF | .~.~.~.~ And passage venting fluid external to chamber |
| 319.1 | DF | .~.~.~.~ Having an orifice adjustment for both jounce or bound (compression) and rebound |
| 319.2 | DF | .~.~.~.~ Orifice size varied using a hand or hand tool |
| 320 | DF | .~.~.~.~ Tortuous path orifice |
| 322.13 | DF | .~ Valve structure or location |
| 322.14 | DF | .~.~ Foot valve |
| 322.15 | DF | .~.~ Piston valve detail (e.g., seat design, structural arrangement, metering element) |
| 322.16 | DF | .~ Including seal or guide |
| 322.17 | DF | .~.~ Between piston rod and cylinder |
| 322.18 | DF | .~.~ Between piston and cylinder |
| 322.19 | DF | .~ Cylinder structure |
| 322.2 | DF | .~.~ Having connection for side-mounted valve type |
| 322.21 | DF | .~.~ Having means for filling or recharging |
| 322.22 | DF | .~ Thrust member or piston structure |
| 322.12 | DF | .~ Including protective shield for retarder |
| 321.11 | DF | .~ Including means connecting thrust member to load |
| 299.1 | DF | .~ Controlled by an operator (e.g., vehicle driver) remote from retarder |
| 300 | DF | .~ With means for locking parts together temporarily |
| 322.5 | DD | .~ Using viscosity of fluid medium |
| 381 | DF | FRICTIONAL VIBRATION DAMPER |
| * | DD | OPERATORS |
| 105 | DF | .~ Multiple |
| 106 R | DF | .~.~ Vehicle |
| 107 | DF | .~.~.~ Railway |
| 106 F | DF | .~.~.~ Fluid and mechanical |
| 106 A | DF | .~.~.~ Inside wheel |
| 106 P | DF | .~.~.~ Plural systems |
| 108 | DF | .~ Vehicle step |
| 109 | DF | .~ Seat |
| 110 | DF | .~ Automatic |
| * | DD | .~.~ Vehicle |
| 111 | DF | .~.~.~ Trips |
| 112 R | DF | .~.~.~ Train |
| 112 A | DF | .~.~.~.~ Anti-sway control |
| 113 | DF | .~.~.~ Four-wheel |
| 114 | DF | .~.~.~ Hub |
| * | DD | .~.~.~ Auxiliary mechanism on tongue |
| 115 | DF | .~.~.~.~ Rear wheel |
| 116 | DF | .~.~.~.~.~ Divided beam |
| 117 | DF | .~.~.~.~ Front wheel |
| 118 | DF | .~.~.~.~.~ Divided beam |
| * | DD | .~.~.~ Movable tongue |
| 119 | DF | .~.~.~.~ Rising and falling |
| 120 | DF | .~.~.~.~ Rear wheel |
| 121 | DF | .~.~.~.~.~ Divided beam |
| 122 | DF | .~.~.~.~ Front wheel |
| 123 | DF | .~.~.~.~.~ Divided beam |
| * | DD | .~.~.~ Railway |
| 124 | DF | .~.~.~.~ Train |
| 125 | DF | .~.~.~.~.~ Drawbar |
| 126 | DF | .~.~.~.~.~.~ Speed-responsive |
| 127 | DF | .~.~.~.~ Strain release |
| 128 | DF | .~.~.~ Sled |
| 129 | DF | .~.~.~ Rise and fall |
| 130 | DF | .~.~.~.~ Rotary |
| 131 | DF | .~.~.~ Turning |
| 132 | DF | .~.~.~ Horse pull |
| 134 | DF | .~.~ Differential movement |
| 135 | DF | .~.~ Momentum |
| 136 | DF | .~.~.~ Wedging shoe |
| 137 | DF | .~.~.~ Electric control |
| 138 | DF | .~.~.~.~ Vehicle |
| 139 | DF | .~.~.~ Gravity control |
| 140 R | DF | .~.~.~ Vehicle |
| 141 | DF | .~.~.~.~ Fluid-pressure control |
| 142 | DF | .~.~.~.~ Draft control |
| 143 | DF | .~.~.~.~ Wheel and ground |
| 144 | DF | .~.~.~.~ Railway |
| 145 | DF | .~.~.~.~.~ Winding |
| 146 | DF | .~.~.~.~.~.~ Axle |
| 147 | DF | .~.~.~.~.~ Train |
| 148 | DF | .~.~.~.~.~.~ Push rod |
| 149 | DF | .~.~.~.~.~.~ Drawbar |
| 150 | DF | .~.~.~.~.~.~.~ Speed-responsive |
| 140 A | DF | .~.~.~.~ Servo brake |
| 151 R | DF | .~ Fluid pressure |
| 152 | DF | .~.~ Road vehicle |
| 344 | DF | .~.~.~ Velocipede |
| 345 | DF | .~.~.~ With multiple master cylinders |
| 346 | DF | .~.~.~ With friction drag response |
| 347 | DF | .~.~.~ With hydraulic quick-slack-take-up pulsator |
| 348 | DF | .~.~.~ With power quick-slack-take-up |
| 349 | DF | .~.~.~ With front rear brake apportioner |
| 350 | DF | .~.~.~ With steering gear control |
| 351 | DF | .~.~.~ With hydraulic automatic slack adjuster |
| 352 | DF | .~.~.~ With bleeding or filling device |
| 353 | DF | .~.~.~ With hydraulic lock |
| 354 | DF | .~.~.~ With independent wheel control |
| 355 | DF | .~.~.~ With nonmanual fluid-power source |
| 356 | DF | .~.~.~.~ Vacuum power |
| 357 | DF | .~.~.~.~.~ And manual |
| 358 | DF | .~.~.~.~ Liquid power |
| 359 | DF | .~.~.~.~.~ And manual |
| 360 | DF | .~.~.~.~ And manual |
| 361 | DF | .~.~.~ Wheel brake operating assembly |
| 362 | DF | .~.~.~.~ With transversely movable internal brake |
| 363 | DF | .~.~.~.~.~ Motor between shoe ends |
| 364 | DF | .~.~.~.~.~.~ Dual opposed piston motor |
| 365 | DF | .~.~.~.~ Radially acting motor |
| 366 | DF | .~.~.~.~ Arcuate or annular motor |
| 367 | DF | .~.~.~.~.~ Axially acting |
| 368 | DF | .~.~.~.~ Axially acting motor |
| 369 | DF | .~.~.~.~ With axially movable brake member |
| 370 | DF | .~.~.~.~.~ Spot type |
| 153 R | DF | .~.~ Rail vehicle |
| 153 D | DF | .~.~.~ Diaphragm |
| 153 A | DF | .~.~.~ Rim grip type |
| 154 | DF | .~.~ Exhaust of propelling motor |
| 151 A | DF | .~.~ Safety devices |
| 155 | DF | .~ Fluid current |
| 156 | DF | .~ Electric and mechanical |
| 157 | DF | .~.~ Electric motor on staff |
| 158 | DF | .~ Electric |
| 159 | DF | .~.~ Dynamic |
| 160 | DF | .~.~.~ Additional current |
| 161 | DF | .~.~ Electromagnet |
| 162 | DF | .~.~.~ Rotary motor |
| 163 | DF | .~.~.~ Solenoid |
| 164 | DF | .~.~.~ Magnetic circuit |
| 165 | DF | .~.~.~.~ Rail-engaging |
| 166 | DF | .~ Spring |
| 167 | DF | .~.~ Vehicle |
| 168 | DF | .~.~.~ Draft release |
| 169 | DF | .~.~.~.~ Wagon |
| 170 | DF | .~.~ Fluid-pressure release |
| 171 | DF | .~.~ Electric release |
| 173 | DF | .~.~.~ Vehicle |
| 174 | DF | .~ Weight |
| 175 | DF | .~.~ Draft control |
| 176 | DF | .~.~ Vehicle body |
| 177 | DF | .~.~.~ Inclined |
| 178 | DF | .~.~.~ Longitudinally movable |
| 179 | DF | .~.~ Float |
| * | DD | .~ Speed-responsive |
| 180 | DF | .~.~ Regulators |
| 181 R | DF | .~.~.~ Vehicle |
| 181 A | DF | .~.~.~.~ Acceleration responsive |
| 181 C | DF | .~.~.~.~ Comparative |
| 181 T | DF | .~.~.~.~ Torque-responsive |
| 182 | DF | .~.~.~ Fluid and electric control |
| 184 | DF | .~.~.~ Transversely expanding |
| 185 | DF | .~.~.~.~ Radial |
| 186 | DF | .~.~.~ Transversely contracting |
| 187 | DF | .~.~.~ Axially moving |
| 188 | DF | .~.~.~ Strand-engaging |
| 189 | DF | .~.~ Stops |
| * | DD | POSITION ADJUSTERS |
| 190 | DF | .~ Vehicle body movement |
| 191 | DF | .~.~ Radius rod |
| 192 | DF | .~.~ Turning |
| 193 | DF | .~.~.~ Railway |
| 194 | DF | .~.~.~ Pivoted wheel |
| 195 | DF | .~ Load |
| 196 R | DF | .~ Slack |
| 197 | DF | .~.~ Railway car |
| 198 | DF | .~.~.~ Automatic |
| 199 | DF | .~.~.~.~ Friction clutch |
| 200 | DF | .~.~.~.~ Ratchet bar |
| 201 | DF | .~.~.~.~ Shims |
| 202 | DF | .~.~.~.~ Screw |
| 203 | DF | .~.~.~.~.~ Fluid-operated |
| 196 A | DF | .~.~ Fluid |
| 196 C | DF | .~.~ Combined |
| 196 F | DF | .~.~ Torsional spring |
| 196 M | DF | .~.~ Manual |
| 196 P | DF | .~.~ Friction |
| 196 B | DF | .~.~ Ratchet |
| 196 BA | DF | .~.~.~ Rotatable |
| 196 D | DF | .~.~ Frictional rotation |
| 196 V | DF | .~.~ Screw, shim or cam |
| 204 R | DF | .~ Equalizers |
| 204 A | DF | .~.~ For strap brakes |
| 205 R | DF | .~ Supports |
| 206 R | DF | .~.~ Brake element |
| 207 | DF | .~.~.~ Beam |
| 208 | DF | .~.~.~.~ Road vehicle |
| 209 | DF | .~.~.~.~ Brackets |
| 210 | DF | .~.~.~.~ Safety |
| 211 | DF | .~.~.~.~ Locks |
| 212 | DF | .~.~.~.~ Parallel motion |
| 213 | DF | .~.~.~.~.~ Multiple-point support |
| 214 | DF | .~.~.~.~ Wear compensation |
| 215 | DF | .~.~.~.~.~ Brake shoes |
| 206 A | DF | .~.~.~ Anchor |
| 205 A | DF | .~.~ Antirattler |
| 216 | DF | .~ Release mechanism |
| 217 | DF | .~ Brake-thrust distributors |
| * | DD | ELEMENTS |
| 218 R | DF | .~ Brake wheels |
| 218 XL | DF | .~.~ Disk type |
| 218 A | DF | .~.~ Dust guard |
| 219.1 | DF | .~ Beams or beam assemblies |
| 219.6 | DF | .~.~ With movable, reversible or adjustable heads |
| 220.1 | DF | .~.~.~ Pivoted head |
| 220.6 | DF | .~.~.~.~ Lockingly adjustable |
| 221.1 | DF | .~.~.~.~.~ Yieldably readjustable |
| 222.1 | DF | .~.~ With fixed head or thrust block |
| 222.6 | DF | .~.~.~ Integral head and beam |
| 223.1 | DF | .~.~.~ Trussed beam |
| 223.6 | DF | .~.~.~.~ Head or block held by tension element |
| 224.1 | DF | .~.~.~.~.~ Tension adjusted by terminal nut |
| 225.6 | DF | .~.~ Trussed beam |
| 226.1 | DF | .~.~.~ Integral tension and compression member |
| 228.1 | DF | .~.~.~ Tubular compression member |
| 228.6 | DF | .~.~.~ H, I, L, T, U, V, or X cross section compression member |
| 229.1 | DF | .~.~.~ With strut-type fulcrum |
| 229.6 | DF | .~.~.~.~ Reversible |
| 231 | DF | .~.~ With fulcrum |
| 232 | DF | .~.~.~ Reversible |
| 233 | DF | .~.~.~ Spaced |
| 233.3 | DF | .~.~ With guides and/or guards |
| 233.7 | DF | .~.~ H, I, L, T, U, V, or X cross section beam |
| 234 | DF | .~ Shoe fasteners |
| 235 | DF | .~.~ Locomotive type |
| 236 | DF | .~.~ Heads |
| 237 | DF | .~.~ Combined wheel guards |
| 238 | DF | .~.~ Multiple shoes |
| 239 | DF | .~.~.~ Superposed |
| 240 | DF | .~.~.~ Linear arrangement |
| 241 | DF | .~.~.~.~ Frangible connection |
| 242 | DF | .~.~ Interlocking heads and shoes |
| 243 | DF | .~.~.~ Longitudinal key |
| 244 | DF | .~.~.~ Longitudinal insertion |
| 245 | DF | .~.~.~ Side insertion |
| 246 | DF | .~.~.~ Clamps |
| 247 | DF | .~.~ Shoe-back lugs |
| 248 | DF | .~.~.~ Cast in |
| 249 | DF | .~.~ Flexible shoes |
| 250 R | DF | .~ Shoes |
| 251 R | DF | .~.~ Composite |
| 252 | DF | .~.~.~ Flanged |
| 253 | DF | .~.~.~.~ Recessed |
| 254 | DF | .~.~.~ Shells |
| 255 | DF | .~.~.~ Cast metal matrix |
| 256 | DF | .~.~.~.~ Nonmetallic inserts |
| 257 | DF | .~.~.~.~ Faces |
| 258 | DF | .~.~.~.~ Backs |
| 259 | DF | .~.~.~ Flexible |
| 251 A | DF | .~.~.~ Materials |
| 251 M | DF | .~.~.~ Metallic surfaces |
| 260 | DF | .~.~ Chills |
| 261 | DF | .~.~ Recessed |
| 262 | DF | .~.~ Rotary |
| 250 A | DF | .~.~ Transversely expandable |
| 250 H | DF | .~.~ One-piece |
| 250 C | DF | .~.~ Multiple web |
| 250 D | DF | .~.~ Web and flange connections |
| 250 E | DF | .~.~ Slotted shoes and vibration dampers |
| 250 F | DF | .~.~ Anchor and operator fittings |
| 250 G | DF | .~.~ Surfaces and fasteners |
| 250 B | DF | .~.~ Shoe construction |
| 264 R | DF | .~ Cooling and lubricating |
| 264 A | DF | .~.~ Air-cooled, axially engaging |
| 264 AA | DF | .~.~.~ Auto wheel type |
| 264 B | DF | .~.~ Lubrication |
| 264 D | DF | .~.~ Liquid cool |
| 264 E | DF | .~.~ Wet friction surface and internal resistance |
| 264 F | DF | .~.~ Operating fluid cooling |
| 264 CC | DF | .~.~ Contained coolant |
| 264 G | DF | .~.~ Insulators |
| 264 P | DF | .~.~ With pump |
| 264 W | DF | .~.~ External wheel covers |
| 265 | DF | .~ Locks |
| 382 | DF | MISCELLANEOUS |