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Classification Resources
 
Class   92EXPANSIBLE CHAMBER DEVICES
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 [List of Pre Grant Publications for class 92 subclass 1][List of Patents for class 92 subclass 1]1 WITH TEMPERATURE COMPENSATION
 [List of Pre Grant Publications for class 92 subclass 2][List of Patents for class 92 subclass 2]2 ONE WORKING MEMBER RECIPROCATES AND ANOTHER ROTATES COMMON OUTPUT MEMBER
 [List of Pre Grant Publications for class 92 subclass 3][List of Patents for class 92 subclass 3]3 WITH DISENGAGEABLE ROTARY DRIVE FOR MOVING WORKING MEMBER
[List of Pre Grant Publications for class 92 subclass 5R][List of Patents for class 92 subclass 5R]  5R WITH (1) SIGNAL OR INDICATOR OR (2) INSPECTION WINDOW IN EXPANSIBLE CHAMBER WALL PORTION
[List of Pre Grant Publications for class 92 subclass 6R][List of Patents for class 92 subclass 6R]  6R EFFECTIVE AREA OF WORKING MEMBER END FACE SELECTIVELY VARIABLE
 [List of Pre Grant Publications for class 92 subclass 7][List of Patents for class 92 subclass 7]7 WITH OVERCENTER MEANS TO BIAS WORKING MEMBER IN OPPOSITE DIRECTIONS OVER DIFFERENT PORTIONS OF STROKE
[List of Pre Grant Publications for class 92 subclass 8][List of Patents for class 92 subclass 8]8 WITH MEANS TO CONTROL FLOW OF NON-WORKING ARRESTING FLUID FOR WORKING MEMBER
[List of Pre Grant Publications for class 92 subclass 12.1][List of Patents for class 92 subclass 12.1]12.1 DISPLACEMENT CONTROL OF PLURAL CYLINDERS ARRANGED IN PARALLEL, RADIAL, OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS
 [List of Pre Grant Publications for class 92 subclass 14][List of Patents for class 92 subclass 14]14 WORKING MEMBER MOVES LOAD AND LATCHING MEANS FOR LOAD
[List of Pre Grant Publications for class 92 subclass 15][List of Patents for class 92 subclass 15]15 WITH RELEASABLE STOP OR LATCH MEANS TO PREVENT MOVEMENT OF WORKING MEMBER
 [List of Pre Grant Publications for class 92 subclass 29][List of Patents for class 92 subclass 29]29 WITH RELEASABLE LATCH MEANS BETWEEN WORKING MEMBER AND POWER TRANSMISSION ELEMENT AXIALLY SLIDABLE THEREIN
 [List of Pre Grant Publications for class 92 subclass 30][List of Patents for class 92 subclass 30]30 WITH RESILIENT DETENT
[List of Pre Grant Publications for class 92 subclass 31][List of Patents for class 92 subclass 31]31 RECTILINEARLY MOVING WORKING MEMBER AND COAXIAL OR PARALLEL ELEMENT SLIDABLY INTERENGAGED FOR RELATIVE ROTARY MOVEMENT
[List of Pre Grant Publications for class 92 subclass 34][List of Patents for class 92 subclass 34]34 BELLOWS TYPE EXPANSIBLE CHAMBER
[List of Pre Grant Publications for class 92 subclass 48][List of Patents for class 92 subclass 48]48 PLURAL FLEXIBLE WALL WORKING MEMBERS
[List of Pre Grant Publications for class 92 subclass 51][List of Patents for class 92 subclass 51]51 MUTUALLY RELATIVELY MOVABLE CYLINDER OR SLEEVE, MEMBER SEALINGLY SLIDABLE THEREIN AND OUTER CYLINDER THEREFOR
[List of Pre Grant Publications for class 92 subclass 54][List of Patents for class 92 subclass 54]54 ROTATING CYLINDER
 [List of Pre Grant Publications for class 92 subclass 58.1][List of Patents for class 92 subclass 58.1]58.1 KNOCKDOWN OR FLOW CONDUIT STORAGE OR RETRIEVAL MEANS
 [List of Pre Grant Publications for class 92 subclass 59][List of Patents for class 92 subclass 59]59 CONVERTIBLE, OR CHANGEABLE BY ASSEMBLY OR DISASSEMBLY
 [List of Pre Grant Publications for class 92 subclass 60][List of Patents for class 92 subclass 60]60 WITH FLEXIBLE OR RESILIENTLY BIASED NON-WORKING MEMBER MOVABLE WALL IN CONSTANT COMMUNICATION WITH WORKING CHAMBER
 [List of Pre Grant Publications for class 92 subclass 60.5][List of Patents for class 92 subclass 60.5]60.5 SELECTIVE CLEARANCE CONTROL
[List of Pre Grant Publications for class 92 subclass 61][List of Patents for class 92 subclass 61]61 RELATIVELY MOVABLE WORKING MEMBERS
 [List of Pre Grant Publications for class 92 subclass 77][List of Patents for class 92 subclass 77]77 GROUND EMBEDDED EXPANSIBLE CHAMBER
[List of Pre Grant Publications for class 92 subclass 78][List of Patents for class 92 subclass 78]78 WITH FLUID PURIFYING MEANS
 [List of Pre Grant Publications for class 92 subclass 80][List of Patents for class 92 subclass 80]80 WITH FORCE EXERTING MEANS TO MOVE FLUID FROM NON-WORKING CHAMBER
 [List of Pre Grant Publications for class 92 subclass 81][List of Patents for class 92 subclass 81]81 WORKING MEMBER FORMS RESERVOIR FOR NON-COMPRESSIBLE WORKING FLUID
 [List of Pre Grant Publications for class 92 subclass 82][List of Patents for class 92 subclass 82]82 WITH MEANS TO CONTROL FLUID FLOW FROM NON-WORKING CHAMBER
 [List of Pre Grant Publications for class 92 subclass 83][List of Patents for class 92 subclass 83]83 LIQUID POOL SEALING RELATIVELY MOVABLE CHAMBER WALLS
 [List of Pre Grant Publications for class 92 subclass 84][List of Patents for class 92 subclass 84]84 RESILIENT MEANS INTERPOSED BETWEEN WORKING MEMBER AND RELATIVELY MOVABLE POWER TRANSMISSION ELEMENT
[List of Pre Grant Publications for class 92 subclass 85R][List of Patents for class 92 subclass 85R]  85R WITH CUSHIONING MEANS EFFECTIVE OVER A PORTION ONLY OF STROKE
 [List of Pre Grant Publications for class 92 subclass 86][List of Patents for class 92 subclass 86]86 WITH REMOVAL CONDUIT FOR LIQUID SEEPAGE FROM EXPANSIBLE CHAMBER
 [List of Pre Grant Publications for class 92 subclass 86.5][List of Patents for class 92 subclass 86.5]86.5 PASSAGE IN CYLINDER FOR APPLICATION OF SEPARATE FLUID TO CYLINDER AND PISTON SIDE WALL INTERFACE
 [List of Pre Grant Publications for class 92 subclass 87][List of Patents for class 92 subclass 87]87 WITH NON-SEALING CLEANING MEANS
 [List of Pre Grant Publications for class 92 subclass 88][List of Patents for class 92 subclass 88]88 SEALED OPENING IN LONGITUDINAL WALL OF CHAMBER FOR RECEIVING WORKING MEMBER PORTION
[List of Pre Grant Publications for class 92 subclass 89][List of Patents for class 92 subclass 89]89 COLLAPSIBLE CHAMBER WALL PORTION (E.G., HINGED OR FLEXIBLE WALL)
 [List of Pre Grant Publications for class 92 subclass 106][List of Patents for class 92 subclass 106]106 FLUID CONDUIT IN CONSTANT COMMUNICATION WITH RELATIVELY ROTATABLE WORKING CHAMBER
[List of Pre Grant Publications for class 92 subclass 107][List of Patents for class 92 subclass 107]107 ANNULAR WORKING MEMBER OR ANNULAR LINEARLY EXTENDING CHAMBER THEREFOR
[List of Pre Grant Publications for class 92 subclass 109][List of Patents for class 92 subclass 109]109 PISTON WITH RIGID AXIALLY EXTENDING HOLLOW STEM
 [List of Pre Grant Publications for class 92 subclass 116][List of Patents for class 92 subclass 116]116 WITH AXIALLY EXTENDING ELEMENT MOUNTED ON WORKING MEMBER FOR RELATIVE ROTARY MOVEMENT ONLY
[List of Pre Grant Publications for class 92 subclass 117R][List of Patents for class 92 subclass 117R]  117R MOVING CYLINDER
[List of Pre Grant Publications for class 92 subclass 120][List of Patents for class 92 subclass 120]120 OSCILLATING WORKING MEMBER OR CYLINDER THEREFOR
[List of Pre Grant Publications for class 92 subclass 126][List of Patents for class 92 subclass 126]126 WITH DIFFERENTIAL RADIAL THRUST PRODUCING MEANS FOR WORKING MEMBER
 [List of Pre Grant Publications for class 92 subclass 128][List of Patents for class 92 subclass 128]128 WITH ASSEMBLY OR DISASSEMBLY FACILITATING MEANS
 [List of Pre Grant Publications for class 92 subclass 129][List of Patents for class 92 subclass 129]129 ABUTMENT CONNECTION BETWEEN WORKING MEMBER AND POWER TRANSMISSION ELEMENT
[List of Pre Grant Publications for class 92 subclass 130R][List of Patents for class 92 subclass 130R]  130R WITH SEPARATE BIASING MEANS FOR WORKING MEMBER
 [List of Pre Grant Publications for class 92 subclass 136][List of Patents for class 92 subclass 136]136 WITH TOOTHED GEAR, SPLINE OR THREAD RIGID WITH WORKING MEMBER
 [List of Pre Grant Publications for class 92 subclass 137][List of Patents for class 92 subclass 137]137 WITH FLEXIBLE TRANSMISSION ELEMENT SECURED TO WORKING MEMBER
 [List of Pre Grant Publications for class 92 subclass 138][List of Patents for class 92 subclass 138]138 WITH LINKAGE OR TRANSMISSION ENGAGING PORTION INTERMEDIATE SPACED WORKING MEMBER END FACES
 [List of Pre Grant Publications for class 92 subclass 139][List of Patents for class 92 subclass 139]139 WITH CYLINDER WALL CONTACTING GUIDE ARTICULATED TO PISTON
 [List of Pre Grant Publications for class 92 subclass 140][List of Patents for class 92 subclass 140]140 WITH LINKAGE OR TRANSMISSION HAVING RELATIVELY MOVABLE MEMBERS
 [List of Pre Grant Publications for class 92 subclass 141][List of Patents for class 92 subclass 141]141 WITH SEPARABLE FLUID DEFLECTING SHIELD OR BAFFLE ON WORKING MEMBER
 [List of Pre Grant Publications for class 92 subclass 142][List of Patents for class 92 subclass 142]142 WITH RESERVOIR FOR NON-COMPRESSIBLE WORKING FLUID
 [List of Pre Grant Publications for class 92 subclass 143][List of Patents for class 92 subclass 143]143 WITH MOVEMENT DAMPING MEANS (E.G., FLUID FLOW RESTRICTOR)
 [List of Pre Grant Publications for class 92 subclass 144][List of Patents for class 92 subclass 144]144 WITH ENCOMPASSING HEAT EXCHANGE MODIFYING SPACE OR JACKET
 [List of Pre Grant Publications for class 92 subclass 145][List of Patents for class 92 subclass 145]145 COMBINED
[List of Pre Grant Publications for class 92 subclass 146][List of Patents for class 92 subclass 146]146 PLURAL UNITARILY MOUNTED CYLINDERS OR FRAME THEREFOR (161)
[List of Pre Grant Publications for class 92 subclass 153][List of Patents for class 92 subclass 153]153 WITH LUBRICATING MEANS
[List of Pre Grant Publications for class 92 subclass 161][List of Patents for class 92 subclass 161]161 WITH SUPPORT OR FRAME (146)
[List of Pre Grant Publications for class 92 subclass 162R][List of Patents for class 92 subclass 162R]  162R SPACED CYLINDER AND PISTON WALLS DEFINE PASSAGE BETWEEN OPPOSED PISTON SIDE WALL ENDS
[List of Pre Grant Publications for class 92 subclass 163][List of Patents for class 92 subclass 163]163 FLUID CONDUIT OR PORT IN FIXED WALL OF WORKING CHAMBER
[List of Pre Grant Publications for class 92 subclass 165R][List of Patents for class 92 subclass 165R]  165R WITH GUIDE OR SEAL ON CYLINDER END PORTION FOR PISTON OR MEMBER MOVED BY PISTON
[List of Pre Grant Publications for class 92 subclass 169.1][List of Patents for class 92 subclass 169.1]169.1 CYLINDER DETAIL
[List of Pre Grant Publications for class 92 subclass 172][List of Patents for class 92 subclass 172]172 PISTON
 [List of Pre Grant Publications for class 92 subclass 173][List of Patents for class 92 subclass 173]173 Subclass 173 indent level is 1 With rotation imparting fluid impinging surface on piston part
 [List of Pre Grant Publications for class 92 subclass 174][List of Patents for class 92 subclass 174]174 Subclass 174 indent level is 1 Liquid between axially spaced side wall portions
 [List of Pre Grant Publications for class 92 subclass 175][List of Patents for class 92 subclass 175]175 Subclass 175 indent level is 1 Spaced faces joined by rigid stem (e.g., spool)
 [List of Pre Grant Publications for class 92 subclass 176][List of Patents for class 92 subclass 176]176 Subclass 176 indent level is 1 With enclosed insulating space in piston part
 [List of Pre Grant Publications for class 92 subclass 177][List of Patents for class 92 subclass 177]177 Subclass 177 indent level is 1 Non-circular
 [List of Pre Grant Publications for class 92 subclass 178][List of Patents for class 92 subclass 178]178 Subclass 178 indent level is 1 With ball or roller anti-friction means on side wall portion
 [List of Pre Grant Publications for class 92 subclass 179][List of Patents for class 92 subclass 179]179 Subclass 179 indent level is 1 Articulated connecting rod end forms portions of piston face
[List of Pre Grant Publications for class 92 subclass 181R][List of Patents for class 92 subclass 181R]  181R Subclass 181R indent level is 1 With fluid passage in piston face
 [List of Pre Grant Publications for class 92 subclass 186][List of Patents for class 92 subclass 186]186 Subclass 186 indent level is 1 With ported chamber in piston part for circulating heat exchange fluid
[List of Pre Grant Publications for class 92 subclass 187][List of Patents for class 92 subclass 187]187 Subclass 187 indent level is 1 With separable means for pivotally mounting connecting rod to piston
 [List of Pre Grant Publications for class 92 subclass 192][List of Patents for class 92 subclass 192]192 Subclass 192 indent level is 1 Plural integral radially extending resilient metallic sealing tongues on side wall portion
[List of Pre Grant Publications for class 92 subclass 193][List of Patents for class 92 subclass 193]193 Subclass 193 indent level is 1 With spring means for biasing side wall portion radially
[List of Pre Grant Publications for class 92 subclass 201][List of Patents for class 92 subclass 201]201 Subclass 201 indent level is 1 Radially adjustable side wall portion
[List of Pre Grant Publications for class 92 subclass 208][List of Patents for class 92 subclass 208]208 Subclass 208 indent level is 1 Open-ended hollow skirt type (e.g., trunk type)
[List of Pre Grant Publications for class 92 subclass 240][List of Patents for class 92 subclass 240]240 Subclass 240 indent level is 1 Side wall portion includes peripheral axially extending flexible lip
 [List of Pre Grant Publications for class 92 subclass 247][List of Patents for class 92 subclass 247]247 Subclass 247 indent level is 1 Fluid pressure responsive axial movement of end face portion radially moves side wall portion
[List of Pre Grant Publications for class 92 subclass 248][List of Patents for class 92 subclass 248]248 Subclass 248 indent level is 1 Nonmetallic portion
[List of Pre Grant Publications for class 92 subclass 255][List of Patents for class 92 subclass 255]255 Subclass 255 indent level is 1 Plural separable parts
 [List of Pre Grant Publications for class 92 subclass 260][List of Patents for class 92 subclass 260]260 Subclass 260 indent level is 1 Welded, brazed or soldered (231)
 [List of Pre Grant Publications for class 92 subclass 261][List of Patents for class 92 subclass 261]261 MISCELLANEOUS (E.G., CRANKCASE)
 
FOREIGN ART COLLECTIONS
 
      FOR000          CLASS-RELATED FOREIGN DOCUMENTS
 
DIGESTS
 
 [List of Pre Grant Publications for class 92 subclass DIG1][List of Patents for class 92 subclass DIG1] DIG1 BEARING ON PISTON OR CYLINDER
 [List of Pre Grant Publications for class 92 subclass DIG2][List of Patents for class 92 subclass DIG2] DIG2 FLUID BEARING
 [List of Pre Grant Publications for class 92 subclass DIG3][List of Patents for class 92 subclass DIG3] DIG3 FLEXIBLE DRIVE
 [List of Pre Grant Publications for class 92 subclass DIG4][List of Patents for class 92 subclass DIG4] DIG4 LOST MOTION