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Classification Resources
 
Class   91MOTORS: EXPANSIBLE CHAMBER TYPE
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 [List of Pre Grant Publications for class 91 subclass 1][List of Patents for class 91 subclass 1]1 WITH SIGNAL, INDICATOR OR INSPECTION MEANS
 [List of Pre Grant Publications for class 91 subclass 2][List of Patents for class 91 subclass 2]2 CUTOFF OR CONTROL AFTER PREDETERMINED NUMBER OF CYCLES OR REVOLUTIONS
 [List of Pre Grant Publications for class 91 subclass 3][List of Patents for class 91 subclass 3]3 JET CONTROL TYPE
[List of Pre Grant Publications for class 91 subclass 4R][List of Patents for class 91 subclass 4R]  4R HYDRO-PNEUMATIC
 [List of Pre Grant Publications for class 91 subclass 5][List of Patents for class 91 subclass 5]5 WORKING MEMBER MOVED BY STORED MOTIVE FLUID CHARGE
[List of Pre Grant Publications for class 91 subclass 6][List of Patents for class 91 subclass 6]6 FLUID SUPPLY THROUGH DIVERSE PATHS TO SINGLE EXPANSIBLE CHAMBER
 [List of Pre Grant Publications for class 91 subclass 34][List of Patents for class 91 subclass 34]34 SINGLE ACTING, CHANGEABLE TO OR FROM DOUBLE ACTING
[List of Pre Grant Publications for class 91 subclass 35][List of Patents for class 91 subclass 35]35 INDEPENDENTLY OPERATED TIMER, DELAY, PATTERN OR CYCLIC CONTROL
[List of Pre Grant Publications for class 91 subclass 41][List of Patents for class 91 subclass 41]41 WITH CORRELATED CONTROL OF MOTIVE FLUID AND LOCKING MEANS
 [List of Pre Grant Publications for class 91 subclass 46][List of Patents for class 91 subclass 46]46 WITH INTERRELATED CONTROL OF MOTIVE FLUID AND LUBRICANT
[List of Pre Grant Publications for class 91 subclass 47][List of Patents for class 91 subclass 47]47 CONSTANTLY APPLIED MOTIVE FLUID WITH CONTROLLED VENTING
 [List of Pre Grant Publications for class 91 subclass 52][List of Patents for class 91 subclass 52]52 CONSTANTLY OPEN THROTTLED EXHAUST WITH CONTROLLED MOTIVE FLUID SUPPLY
 [List of Pre Grant Publications for class 91 subclass 53][List of Patents for class 91 subclass 53]53 ENGINE ROTATING OR STARTING TYPE
 [List of Pre Grant Publications for class 91 subclass 54][List of Patents for class 91 subclass 54]54 CONVERTIBLE; OR CHANGEABLE BY DISASSEMBLY OR ASSEMBLY
 [List of Pre Grant Publications for class 91 subclass 55][List of Patents for class 91 subclass 55]55 COMBINED
 [List of Pre Grant Publications for class 91 subclass 59][List of Patents for class 91 subclass 59]59 TORQUE RESPONSIVE MOTIVE FLUID CONTROL
 [List of Pre Grant Publications for class 91 subclass 61][List of Patents for class 91 subclass 61]61 ROTARY AND RECIPROCATING WORKING MEMBERS
 [List of Pre Grant Publications for class 91 subclass 151][List of Patents for class 91 subclass 151]151 SERIALLY FORMED EXPANDING WORKING CHAMBERS (E.G., ENDLESS, ETC.)
[List of Pre Grant Publications for class 91 subclass 152][List of Patents for class 91 subclass 152]152 MULTIPLE EXPANSION
[List of Pre Grant Publications for class 91 subclass 165][List of Patents for class 91 subclass 165]165 APPLICATION OF MOTIVE FLUID AT DIFFERENT PRESSURES TO OPPOSED WORKING MEMBER FACES
[List of Pre Grant Publications for class 91 subclass 167R][List of Patents for class 91 subclass 167R]  167R EXTENSION OF UNIT HAVING SEPARATELY CONTROLLED WORKING CHAMBERS EQUALS SUM OF INDIVIDUAL CHAMBER EXTENSIONS
[List of Pre Grant Publications for class 91 subclass 472][List of Patents for class 91 subclass 472]472 THREE OR MORE CYLINDERS ARRANGED IN PARALLEL RADIAL OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS
 [List of Pre Grant Publications for class 91 subclass 473][List of Patents for class 91 subclass 473]473 Subclass 473 indent level is 1 Condition responsive control of drive transmission
 [List of Pre Grant Publications for class 91 subclass 474][List of Patents for class 91 subclass 474]474 Subclass 474 indent level is 1 Separate fluid supply or discharge paths
 [List of Pre Grant Publications for class 91 subclass 475][List of Patents for class 91 subclass 475]475 Subclass 475 indent level is 1 Having yieldable drive transmission
[List of Pre Grant Publications for class 91 subclass 476][List of Patents for class 91 subclass 476]476 Subclass 476 indent level is 1 Separate motive fluid control for each working chamber
[List of Pre Grant Publications for class 91 subclass 482][List of Patents for class 91 subclass 482]482 Subclass 482 indent level is 1 Means varies cyclic relation between reciprocating member and control valve therefor
[List of Pre Grant Publications for class 91 subclass 484][List of Patents for class 91 subclass 484]484 Subclass 484 indent level is 1 Control valve seating surface contact maintained by fluid pressure bias
[List of Pre Grant Publications for class 91 subclass 486][List of Patents for class 91 subclass 486]486 Subclass 486 indent level is 1 Motive fluid bypass to or from assembly
 [List of Pre Grant Publications for class 91 subclass 490][List of Patents for class 91 subclass 490]490 Subclass 490 indent level is 1 Motive fluid supply or discharge through piston
[List of Pre Grant Publications for class 91 subclass 491][List of Patents for class 91 subclass 491]491 Subclass 491 indent level is 1 Radially disposed cylinders
[List of Pre Grant Publications for class 91 subclass 499][List of Patents for class 91 subclass 499]499 Subclass 499 indent level is 1 Cylinders parallel to rotation axis
 [List of Pre Grant Publications for class 91 subclass 169][List of Patents for class 91 subclass 169]169 SINGLE CHAMBER FORMED BY MUTUALLY RELATIVELY MOVABLE CYLINDER, SLEEVE AND PISTON
[List of Pre Grant Publications for class 91 subclass 170R][List of Patents for class 91 subclass 170R]  170R RELATIVELY MOVABLE WORKING MEMBERS WITH ONE HAVING MOTIVE FLUID CONTROLLED BY, MOVABLY INTERCONNECTED WITH OR MOVED BY ANOTHER
 [List of Pre Grant Publications for class 91 subclass 171][List of Patents for class 91 subclass 171]171 Subclass 171 indent level is 1 Synchronizing in response to sensed difference in positions
 [List of Pre Grant Publications for class 91 subclass 172][List of Patents for class 91 subclass 172]172 Subclass 172 indent level is 1 One working member oppositely biased by another
 [List of Pre Grant Publications for class 91 subclass 173][List of Patents for class 91 subclass 173]173 Subclass 173 indent level is 1 One working member forms movable chamber for another
 [List of Pre Grant Publications for class 91 subclass 174][List of Patents for class 91 subclass 174]174 Subclass 174 indent level is 1 With connection to relatively movable output member disposed between spaced unitary end faces
 [List of Pre Grant Publications for class 91 subclass 176][List of Patents for class 91 subclass 176]176 Subclass 176 indent level is 1 Moving cylinders
 [List of Pre Grant Publications for class 91 subclass 177][List of Patents for class 91 subclass 177]177 Subclass 177 indent level is 1 Oscillating working members
[List of Pre Grant Publications for class 91 subclass 178][List of Patents for class 91 subclass 178]178 Subclass 178 indent level is 1 Single valve unit controlling plural working chambers
 [List of Pre Grant Publications for class 91 subclass 181][List of Patents for class 91 subclass 181]181 Subclass 181 indent level is 1 Interconnected working members in communicating chamber portions
 [List of Pre Grant Publications for class 91 subclass 182][List of Patents for class 91 subclass 182]182 Subclass 182 indent level is 1 Means connecting working members actuates common part controlling motive fluid for the members
[List of Pre Grant Publications for class 91 subclass 183][List of Patents for class 91 subclass 183]183 Subclass 183 indent level is 1 With means interconnecting working members to cause relative motion
[List of Pre Grant Publications for class 91 subclass 189R][List of Patents for class 91 subclass 189R]  189R Subclass 189R indent level is 1 Position of one working member controls motive fluid for another
 [List of Pre Grant Publications for class 91 subclass 170MP][List of Patents for class 91 subclass 170MP]170MP Subclass 170MP indent level is 1 Mine props
[List of Pre Grant Publications for class 91 subclass 196][List of Patents for class 91 subclass 196]196 MOVING CYLINDER
[List of Pre Grant Publications for class 91 subclass 218][List of Patents for class 91 subclass 218]218 CYCLICALLY OPERABLE
 [List of Pre Grant Publications for class 91 subclass 219][List of Patents for class 91 subclass 219]219 Subclass 219 indent level is 1 With dwell
[List of Pre Grant Publications for class 91 subclass 220][List of Patents for class 91 subclass 220]220 Subclass 220 indent level is 1 With condition responsive stop means
[List of Pre Grant Publications for class 91 subclass 222][List of Patents for class 91 subclass 222]222 Subclass 222 indent level is 1 Distributor in piston (422)
[List of Pre Grant Publications for class 91 subclass 230][List of Patents for class 91 subclass 230]230 Subclass 230 indent level is 1 Codirectional separately supplied working members
[List of Pre Grant Publications for class 91 subclass 232][List of Patents for class 91 subclass 232]232 Subclass 232 indent level is 1 Valveless distribution
 [List of Pre Grant Publications for class 91 subclass 235][List of Patents for class 91 subclass 235]235 Subclass 235 indent level is 1 Working chamber receives controlled motive fluid supply from opposed chamber having constant supply (321) (417)
[List of Pre Grant Publications for class 91 subclass 236][List of Patents for class 91 subclass 236]236 Subclass 236 indent level is 1 Multiple exhaust passages (e.g., compression control, etc.)
 [List of Pre Grant Publications for class 91 subclass 245][List of Patents for class 91 subclass 245]245 Subclass 245 indent level is 1 Clearance control
 [List of Pre Grant Publications for class 91 subclass 246][List of Patents for class 91 subclass 246]246 Subclass 246 indent level is 1 Correlated throttle valve and distributor
[List of Pre Grant Publications for class 91 subclass 247][List of Patents for class 91 subclass 247]247 Subclass 247 indent level is 1 Timing control by relative adjustment of plural movable fluid control elements
 [List of Pre Grant Publications for class 91 subclass 264][List of Patents for class 91 subclass 264]264 Subclass 264 indent level is 1 Relatively movable serial distributors
[List of Pre Grant Publications for class 91 subclass 265][List of Patents for class 91 subclass 265]265 Subclass 265 indent level is 1 Relatively movable inlet and exhaust valves
 [List of Pre Grant Publications for class 91 subclass 274][List of Patents for class 91 subclass 274]274 Subclass 274 indent level is 1 With independent throttle adjustment for one side of double-acting motor
 [List of Pre Grant Publications for class 91 subclass 275][List of Patents for class 91 subclass 275]275 Subclass 275 indent level is 1 Electrically or magnetically actuated or adjusted distributor (459)
 [List of Pre Grant Publications for class 91 subclass 276][List of Patents for class 91 subclass 276]276 Subclass 276 indent level is 1 Distributor forms traversed movable portion of working chamber wall (423)
[List of Pre Grant Publications for class 91 subclass 277][List of Patents for class 91 subclass 277]277 Subclass 277 indent level is 1 Adjustable working member reversal position (e.g., stroke control, etc.)
 [List of Pre Grant Publications for class 91 subclass 280][List of Patents for class 91 subclass 280]280 Subclass 280 indent level is 1 Pulsator-actuated distributor (460)
[List of Pre Grant Publications for class 91 subclass 281][List of Patents for class 91 subclass 281]281 Subclass 281 indent level is 1 Working member controlled motive fluid for distributor motor
[List of Pre Grant Publications for class 91 subclass 282][List of Patents for class 91 subclass 282]282 Subclass 282 indent level is 2 Fluid supply through diverse paths to distributor motor chamber
[List of Pre Grant Publications for class 91 subclass 284][List of Patents for class 91 subclass 284]284 Subclass 284 indent level is 2 Independent means to adjust distributor motor supply or exhaust passage
[List of Pre Grant Publications for class 91 subclass 286][List of Patents for class 91 subclass 286]286 Subclass 286 indent level is 2 Distributor or distributor motor mechanically moved cyclically to control actuating fluid for distributor motor
 [List of Pre Grant Publications for class 91 subclass 289][List of Patents for class 91 subclass 289]289 Subclass 289 indent level is 2 Adjustable means to retard or lock distributor motor
[List of Pre Grant Publications for class 91 subclass 290][List of Patents for class 91 subclass 290]290 Subclass 290 indent level is 2 Working member traverses pilot port in working chamber side wall
 [List of Pre Grant Publications for class 91 subclass 303][List of Patents for class 91 subclass 303]303 Subclass 303 indent level is 2 Working member adapted to directly mechanically reverse distributor
[List of Pre Grant Publications for class 91 subclass 304][List of Patents for class 91 subclass 304]304 Subclass 304 indent level is 2 Pilot valve controlled distributor motor (461)
 [List of Pre Grant Publications for class 91 subclass 315][List of Patents for class 91 subclass 315]315 Subclass 315 indent level is 2 Distributor moves about an axis
 [List of Pre Grant Publications for class 91 subclass 316][List of Patents for class 91 subclass 316]316 Subclass 316 indent level is 2 Distributor moves laterally relative to working member reciprocatory path
 [List of Pre Grant Publications for class 91 subclass 317][List of Patents for class 91 subclass 317]317 Subclass 317 indent level is 2 Working member compresses fluid to reverse distributor
 [List of Pre Grant Publications for class 91 subclass 318][List of Patents for class 91 subclass 318]318 Subclass 318 indent level is 2 Motive fluid build-up at end of working stroke reverses distributor
[List of Pre Grant Publications for class 91 subclass 319][List of Patents for class 91 subclass 319]319 Subclass 319 indent level is 2 Working member traverses pilot passage to control distributor motor
 [List of Pre Grant Publications for class 91 subclass 321][List of Patents for class 91 subclass 321]321 Subclass 321 indent level is 1 Motive fluid constantly applied to one working member face (235) (417)
 [List of Pre Grant Publications for class 91 subclass 322][List of Patents for class 91 subclass 322]322 Subclass 322 indent level is 1 With independently operable means to lock distributor
[List of Pre Grant Publications for class 91 subclass 323][List of Patents for class 91 subclass 323]323 Subclass 323 indent level is 1 Relatively movable distributors for opposed working chambers
 [List of Pre Grant Publications for class 91 subclass 325][List of Patents for class 91 subclass 325]325 Subclass 325 indent level is 1 Working member controlled inlet or exhaust port (e.g., semi-valveless, etc.)
 [List of Pre Grant Publications for class 91 subclass 326][List of Patents for class 91 subclass 326]326 Subclass 326 indent level is 1 Distributor moves transverse and parallel to same line
 [List of Pre Grant Publications for class 91 subclass 327][List of Patents for class 91 subclass 327]327 Subclass 327 indent level is 1 Distributor moves about axis parallel to working member reciprocatory path
 [List of Pre Grant Publications for class 91 subclass 328][List of Patents for class 91 subclass 328]328 Subclass 328 indent level is 1 Distributor peripherally engages (1) working chamber wall, or (2) cylinder between opposed working faces
 [List of Pre Grant Publications for class 91 subclass 329][List of Patents for class 91 subclass 329]329 Subclass 329 indent level is 1 Distributor located in cylinder between spaced working faces
[List of Pre Grant Publications for class 91 subclass 330][List of Patents for class 91 subclass 330]330 Subclass 330 indent level is 1 With independently operable means to move or means to adjust movement of distributor
[List of Pre Grant Publications for class 91 subclass 335][List of Patents for class 91 subclass 335]335 Subclass 335 indent level is 1 With throttle valve or distributor throttle adjustment
[List of Pre Grant Publications for class 91 subclass 337][List of Patents for class 91 subclass 337]337 Subclass 337 indent level is 1 With means independent of distributor reversing parts to cyclically hold distributor
[List of Pre Grant Publications for class 91 subclass 339][List of Patents for class 91 subclass 339]339 Subclass 339 indent level is 1 Oscillating working member
[List of Pre Grant Publications for class 91 subclass 341R][List of Patents for class 91 subclass 341R]  341R Subclass 341R indent level is 1 Distributor actuator extends into working chamber
[List of Pre Grant Publications for class 91 subclass 344][List of Patents for class 91 subclass 344]344 Subclass 344 indent level is 1 Biasing means moves distributor after predetermined travel (i.e., snap action)
[List of Pre Grant Publications for class 91 subclass 348][List of Patents for class 91 subclass 348]348 Subclass 348 indent level is 1 Distributor actuator between space piston faces
[List of Pre Grant Publications for class 91 subclass 350][List of Patents for class 91 subclass 350]350 Subclass 350 indent level is 1 Working member reverses distributor through part movable relative to both
[List of Pre Grant Publications for class 91 subclass 355][List of Patents for class 91 subclass 355]355 CUTOFF AFTER SINGLE COMPLETE CYCLE
 [List of Pre Grant Publications for class 91 subclass 357][List of Patents for class 91 subclass 357]357 SELECTIVELY USABLE OR POSITIONABLE WORKING MEMBER CONTROLLED VENT IN CHAMBER WALL (402)
[List of Pre Grant Publications for class 91 subclass 358R][List of Patents for class 91 subclass 358R]  358R WORKING MEMBER POSITION FEEDBACK TO MOTIVE FLUID CONTROL
 [List of Pre Grant Publications for class 91 subclass 359][List of Patents for class 91 subclass 359]359 Subclass 359 indent level is 1 Regenerative or positive feedback type
 [List of Pre Grant Publications for class 91 subclass 360][List of Patents for class 91 subclass 360]360 Subclass 360 indent level is 1 With safety means operable upon input signal loss
[List of Pre Grant Publications for class 91 subclass 361][List of Patents for class 91 subclass 361]361 Subclass 361 indent level is 1 Electrical input and feedback signal means (459)
 [List of Pre Grant Publications for class 91 subclass 364][List of Patents for class 91 subclass 364]364 Subclass 364 indent level is 1 With means to vary feedback signal in response to rate of working member movement
 [List of Pre Grant Publications for class 91 subclass 365][List of Patents for class 91 subclass 365]365 Subclass 365 indent level is 1 With main valve position feedback to pilot valve
 [List of Pre Grant Publications for class 91 subclass 366][List of Patents for class 91 subclass 366]366 Subclass 366 indent level is 1 Speed governor controlled input signal (458)
 [List of Pre Grant Publications for class 91 subclass 367][List of Patents for class 91 subclass 367]367 Subclass 367 indent level is 1 Plural input signal means for single motor valve (453)
[List of Pre Grant Publications for class 91 subclass 368][List of Patents for class 91 subclass 368]368 Subclass 368 indent level is 1 Follower type
[List of Pre Grant Publications for class 91 subclass 385][List of Patents for class 91 subclass 385]385 Subclass 385 indent level is 1 Bias-type input and feedback signal means
 [List of Pre Grant Publications for class 91 subclass 388][List of Patents for class 91 subclass 388]388 Subclass 388 indent level is 1 Fluid operated
 [List of Pre Grant Publications for class 91 subclass 389][List of Patents for class 91 subclass 389]389 Subclass 389 indent level is 1 Adjustable
 [List of Pre Grant Publications for class 91 subclass 358A][List of Patents for class 91 subclass 358A]358A Subclass 358A indent level is 1 Valve locking means
 [List of Pre Grant Publications for class 91 subclass 390][List of Patents for class 91 subclass 390]390 POSITION MAINTAINING TYPE
[List of Pre Grant Publications for class 91 subclass 391R][List of Patents for class 91 subclass 391R]  391R WITH ALTERNATIVE MANUAL ACTUATION OF LOAD
[List of Pre Grant Publications for class 91 subclass 392][List of Patents for class 91 subclass 392]392 WORKING MEMBER POSITION RESPONSIVE MOTIVE FLUID CONTROL
[List of Pre Grant Publications for class 91 subclass 508][List of Patents for class 91 subclass 508]508 PLURAL RELATIVELY MOVABLE OR RIGIDLY INTERCONNECTED WORKING MEMBERS
[List of Pre Grant Publications for class 91 subclass 509][List of Patents for class 91 subclass 509]509 Subclass 509 indent level is 1 Having (1) stand-by or (2) redundant means enabling load to be driven upon failure of primary load moving means
[List of Pre Grant Publications for class 91 subclass 511][List of Patents for class 91 subclass 511]511 Subclass 511 indent level is 1 Condition responsive means for modifying working member operation
 [List of Pre Grant Publications for class 91 subclass 519][List of Patents for class 91 subclass 519]519 Subclass 519 indent level is 1 With means for selectively changing the speed or force exerted on load by the selective application of motive fluid in a single direction to one or more working members
 [List of Pre Grant Publications for class 91 subclass 520][List of Patents for class 91 subclass 520]520 Subclass 520 indent level is 1 Motors connected in series
[List of Pre Grant Publications for class 91 subclass 521][List of Patents for class 91 subclass 521]521 Subclass 521 indent level is 1 Separate valve means actuatable by a common nonmanual actuator or separately actuatable means with common manual actuator
[List of Pre Grant Publications for class 91 subclass 525][List of Patents for class 91 subclass 525]525 Subclass 525 indent level is 1 With means to control the working fluid to one working member for movement relative to another without controlling the working fluid to the other working member by said means
 [List of Pre Grant Publications for class 91 subclass 532][List of Patents for class 91 subclass 532]532 Subclass 532 indent level is 1 With means for proportioning motive fluid supply to plural motors
 [List of Pre Grant Publications for class 91 subclass 533][List of Patents for class 91 subclass 533]533 Subclass 533 indent level is 1 Single valve for plural rigidly connected working members
 [List of Pre Grant Publications for class 91 subclass 534][List of Patents for class 91 subclass 534]534 Subclass 534 indent level is 1 Single valve for relatively movable working members driving common load
 [List of Pre Grant Publications for class 91 subclass 535][List of Patents for class 91 subclass 535]535 Subclass 535 indent level is 1 Relatively movable working members of unequal cross-sectional areas
 [List of Pre Grant Publications for class 91 subclass 536][List of Patents for class 91 subclass 536]536 Subclass 536 indent level is 1 Single valve for relatively movable working members
[List of Pre Grant Publications for class 91 subclass 415][List of Patents for class 91 subclass 415]415 DIFFERENTIAL
[List of Pre Grant Publications for class 91 subclass 418][List of Patents for class 91 subclass 418]418 WITH MOTIVE FLUID VALVE
 [List of Pre Grant Publications for class 91 subclass 419][List of Patents for class 91 subclass 419]419 Subclass 419 indent level is 1 Responsive to (1) motive fluid temperature or state, or (2) motor position or orientation
 [List of Pre Grant Publications for class 91 subclass 420][List of Patents for class 91 subclass 420]420 Subclass 420 indent level is 1 Contracting chamber exhaust valve controlled by expanding chamber pressure or flow
 [List of Pre Grant Publications for class 91 subclass 421][List of Patents for class 91 subclass 421]421 Subclass 421 indent level is 1 Expanding chamber inlet controlled by contracting chamber pressure or flow
 [List of Pre Grant Publications for class 91 subclass 422][List of Patents for class 91 subclass 422]422 Subclass 422 indent level is 1 Valved piston (222)
 [List of Pre Grant Publications for class 91 subclass 423][List of Patents for class 91 subclass 423]423 Subclass 423 indent level is 1 Valve part forms traversed movable portion of working chamber wall (276)
[List of Pre Grant Publications for class 91 subclass 424][List of Patents for class 91 subclass 424]424 Subclass 424 indent level is 1 Two hand control
 [List of Pre Grant Publications for class 91 subclass 426][List of Patents for class 91 subclass 426]426 Subclass 426 indent level is 1 With fluid pressure holding means for valve
 [List of Pre Grant Publications for class 91 subclass 427][List of Patents for class 91 subclass 427]427 Subclass 427 indent level is 1 Plural manual control stations
 [List of Pre Grant Publications for class 91 subclass 428][List of Patents for class 91 subclass 428]428 Subclass 428 indent level is 1 Manual control carried on or operated from load or output element
 [List of Pre Grant Publications for class 91 subclass 429][List of Patents for class 91 subclass 429]429 Subclass 429 indent level is 1 Dither valve
 [List of Pre Grant Publications for class 91 subclass 430][List of Patents for class 91 subclass 430]430 Subclass 430 indent level is 1 Valve parts continuously relatively moved for nonvalving function
 [List of Pre Grant Publications for class 91 subclass 431][List of Patents for class 91 subclass 431]431 Subclass 431 indent level is 1 Continuous motive fluid flow through chamber in motor idle condition
 [List of Pre Grant Publications for class 91 subclass 432][List of Patents for class 91 subclass 432]432 Subclass 432 indent level is 1 Inlet check valve with means for disconnectable supply line (468)
[List of Pre Grant Publications for class 91 subclass 433][List of Patents for class 91 subclass 433]433 Subclass 433 indent level is 1 Both inlet and exhaust controlled by motive fluid pressure in supply line or chamber
 [List of Pre Grant Publications for class 91 subclass 435][List of Patents for class 91 subclass 435]435 Subclass 435 indent level is 1 Controlled by rate of movement of working member
 [List of Pre Grant Publications for class 91 subclass 436][List of Patents for class 91 subclass 436]436 Subclass 436 indent level is 1 Inlet fluid supplemented by controlled fluid pressurized in opposed contracting chamber
[List of Pre Grant Publications for class 91 subclass 437][List of Patents for class 91 subclass 437]437 Subclass 437 indent level is 1 Independent control of bypass between opposed working chambers
 [List of Pre Grant Publications for class 91 subclass 440][List of Patents for class 91 subclass 440]440 Subclass 440 indent level is 1 For exhausting contracting working chamber to expanding opposed nonworking
 [List of Pre Grant Publications for class 91 subclass 441][List of Patents for class 91 subclass 441]441 Subclass 441 indent level is 1 With ambient fluid inlet valve to expanding working chamber
 [List of Pre Grant Publications for class 91 subclass 442][List of Patents for class 91 subclass 442]442 Subclass 442 indent level is 1 Self-opening exhaust valve held closed by inlet pressure (268)
 [List of Pre Grant Publications for class 91 subclass 443][List of Patents for class 91 subclass 443]443 Subclass 443 indent level is 1 To provide unequal inlet and exhaust flow rates to single working chamber
[List of Pre Grant Publications for class 91 subclass 444][List of Patents for class 91 subclass 444]444 Subclass 444 indent level is 1 Relatively movable serial valves
[List of Pre Grant Publications for class 91 subclass 449][List of Patents for class 91 subclass 449]449 Subclass 449 indent level is 1 Plural separately controlled waste passages for single working chamber
 [List of Pre Grant Publications for class 91 subclass 453][List of Patents for class 91 subclass 453]453 Subclass 453 indent level is 1 Plural actuators for single valve means (367)
[List of Pre Grant Publications for class 91 subclass 454][List of Patents for class 91 subclass 454]454 Subclass 454 indent level is 1 Relatively movable inlet and exhaust valves for single working chamber
 [List of Pre Grant Publications for class 91 subclass 458][List of Patents for class 91 subclass 458]458 Subclass 458 indent level is 1 Speed governor operated (366)
 [List of Pre Grant Publications for class 91 subclass 459][List of Patents for class 91 subclass 459]459 Subclass 459 indent level is 1 Electrically operated (275) (361)
 [List of Pre Grant Publications for class 91 subclass 460][List of Patents for class 91 subclass 460]460 Subclass 460 indent level is 1 Pulsator actuator for valve (280)
 [List of Pre Grant Publications for class 91 subclass 461][List of Patents for class 91 subclass 461]461 Subclass 461 indent level is 1 Pilot valve (304)
[List of Pre Grant Publications for class 91 subclass 462][List of Patents for class 91 subclass 462]462 Subclass 462 indent level is 1 For double-acting motor
 [List of Pre Grant Publications for class 91 subclass 468][List of Patents for class 91 subclass 468]468 Subclass 468 indent level is 1 Self-acting valve (432) (446) (451) (452)
[List of Pre Grant Publications for class 91 subclass 469][List of Patents for class 91 subclass 469]469 Subclass 469 indent level is 1 Unitary inlet and exhaust valve for single working chamber
 [List of Pre Grant Publications for class 91 subclass 471][List of Patents for class 91 subclass 471]471 MISCELLANEOUS (E.G., METHODS, ETC.)
 
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DIGESTS
 
 [List of Pre Grant Publications for class 91 subclass DIG1][List of Patents for class 91 subclass DIG1] DIG1 DIGITAL
 [List of Pre Grant Publications for class 91 subclass DIG2][List of Patents for class 91 subclass DIG2] DIG2 EXHAUST THROTTLED MOTOR CONTROL
 [List of Pre Grant Publications for class 91 subclass DIG3][List of Patents for class 91 subclass DIG3] DIG3 LARGE AREA VALVE
 [List of Pre Grant Publications for class 91 subclass DIG4][List of Patents for class 91 subclass DIG4] DIG4 MAGNETS