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Classification Resources
 
Class   418ROTARY EXPANSIBLE CHAMBER DEVICES
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 [List of Pre Grant Publications for class 418 subclass 1][List of Patents for class 418 subclass 1]1 METHODS
 [List of Pre Grant Publications for class 418 subclass 2][List of Patents for class 418 subclass 2]2 WITH SIGNAL, INDICATOR OR TRANSPARENT INSPECTION MEANS
 [List of Pre Grant Publications for class 418 subclass 3][List of Patents for class 418 subclass 3]3 DIVERSE ROTARY EXPANSIBLE CHAMBER DEVICES
 [List of Pre Grant Publications for class 418 subclass 4][List of Patents for class 418 subclass 4]4 WORKING MEMBER OR CYLINDER SURFACE HAS ALTERNATE LINEAR AND CURVILINEAR MOVEMENT (E.G., ENDLESS)
[List of Pre Grant Publications for class 418 subclass 5][List of Patents for class 418 subclass 5]5 MULTISTAGE
 [List of Pre Grant Publications for class 418 subclass 14][List of Patents for class 418 subclass 14]14 WITH DELAYED LOAD
 [List of Pre Grant Publications for class 418 subclass 15][List of Patents for class 418 subclass 15]15 WITH PLURAL WORKING FLUID INLET OR OUTLET PASSAGES
[List of Pre Grant Publications for class 418 subclass 16][List of Patents for class 418 subclass 16]16 WITH CHANGEABLE WORKING CHAMBER MAGNITUDE
 [List of Pre Grant Publications for class 418 subclass 32][List of Patents for class 418 subclass 32]32 SELF-ACTING UNIDIRECTIONAL FLOW WITH REVERSE ROTATION OR REVERSE FLOW WITH UNIDIRECTIONAL ROTATION
[List of Pre Grant Publications for class 418 subclass 33][List of Patents for class 418 subclass 33]33 INTERMITTENTLY ACCELERATED AND RECEDING MEMBERS ROTATE IN SAME PATH (ALTERNATING PISTON TYPE)
 [List of Pre Grant Publications for class 418 subclass 39][List of Patents for class 418 subclass 39]39 CONVERTIBLE OR CHANGEABLE BY ASSEMBLY OR DISASSEMBLY
[List of Pre Grant Publications for class 418 subclass 40][List of Patents for class 418 subclass 40]40 SPEED CONTROLLED
 [List of Pre Grant Publications for class 418 subclass 45][List of Patents for class 418 subclass 45]45 COLLAPSIBLE PROGRESSIVELY DEFORMED WORKING CHAMBER WALL
[List of Pre Grant Publications for class 418 subclass 46][List of Patents for class 418 subclass 46]46 WITH REMOVAL OR ACCOMMODATION OF SOLID FOREIGN MATERIAL IN WORKING FLUID
 [List of Pre Grant Publications for class 418 subclass 48][List of Patents for class 418 subclass 48]48 UNLIKE HELICAL SURFACES ON RELATIVELY WOBBLING ROTATING MEMBER AND ENCOMPASSING CYLINDER (E.G., MOINEAU TYPE)
[List of Pre Grant Publications for class 418 subclass 49][List of Patents for class 418 subclass 49]49 NUTATING WORKING MEMBER
[List of Pre Grant Publications for class 418 subclass 54][List of Patents for class 418 subclass 54]54 WORKING MEMBER HAS PLANETARY OR PLANETATING MOVEMENT
 [List of Pre Grant Publications for class 418 subclass 68][List of Patents for class 418 subclass 68]68 ROTATING INTERNAL MEMBER ROTATES AND OSCILLATES OR RECIPROCATES
 [List of Pre Grant Publications for class 418 subclass 69][List of Patents for class 418 subclass 69]69 WITH FRANGIBLE DRIVE CONNECTION OR CLUTCH
 [List of Pre Grant Publications for class 418 subclass 70][List of Patents for class 418 subclass 70]70 WITH RAPID DISASSEMBLY FEATURE (I.E., WITHOUT TOOLS)
[List of Pre Grant Publications for class 418 subclass 71][List of Patents for class 418 subclass 71]71 PRESSURE FLUID RADIALLY BALANCES WORKING OR ROTATING ABUTMENT MEMBER
[List of Pre Grant Publications for class 418 subclass 75][List of Patents for class 418 subclass 75]75 GROOVED ABUTTING CYLINDER-ROTATING MEMBER END SURFACES
[List of Pre Grant Publications for class 418 subclass 83][List of Patents for class 418 subclass 83]83 HEAT EXCHANGE OR NON-WORKING FLUID LUBRICATING OR SEALING
 [List of Pre Grant Publications for class 418 subclass 102][List of Patents for class 418 subclass 102]102 SHAFT OR TRUNNION LUBRICATION OR SEALING BY DIVERTED WORKING FLUID PORTION
 [List of Pre Grant Publications for class 418 subclass 103][List of Patents for class 418 subclass 103]103 WORKING MEMBER PERIPHERAL SURFACE COMPRISES RELATIVELY CIRCUMFERENTIALLY MOVABLE SEGMENTS
[List of Pre Grant Publications for class 418 subclass 104][List of Patents for class 418 subclass 104]104 WITH MECHANICAL SEALING
 [List of Pre Grant Publications for class 418 subclass 105][List of Patents for class 418 subclass 105]105 Subclass 105 indent level is 1 Abutment position adjustment
 [List of Pre Grant Publications for class 418 subclass 106][List of Patents for class 418 subclass 106]106 Subclass 106 indent level is 1 Vane position adjustment
[List of Pre Grant Publications for class 418 subclass 107][List of Patents for class 418 subclass 107]107 Subclass 107 indent level is 1 By changing working member or cylinder relative position
 [List of Pre Grant Publications for class 418 subclass 110][List of Patents for class 418 subclass 110]110 Subclass 110 indent level is 1 By axially relatively moving working member sections
 [List of Pre Grant Publications for class 418 subclass 111][List of Patents for class 418 subclass 111]111 Subclass 111 indent level is 1 By axially relatively moving vane or abutment sections
[List of Pre Grant Publications for class 418 subclass 112][List of Patents for class 418 subclass 112]112 Subclass 112 indent level is 1 Seal on working member periphery separates inlet and outlet ports
[List of Pre Grant Publications for class 418 subclass 125][List of Patents for class 418 subclass 125]125 Subclass 125 indent level is 1 Seal on cylinder engaging rotary member separates inlet and outlet ports
 [List of Pre Grant Publications for class 418 subclass 130][List of Patents for class 418 subclass 130]130 Subclass 130 indent level is 1 Cup shaped cylinder axially movable to abut cylinder side
[List of Pre Grant Publications for class 418 subclass 131][List of Patents for class 418 subclass 131]131 Subclass 131 indent level is 1 Axially movable end wall or end wall portion
[List of Pre Grant Publications for class 418 subclass 136][List of Patents for class 418 subclass 136]136 Subclass 136 indent level is 1 Seal element between working member and vane
 [List of Pre Grant Publications for class 418 subclass 139][List of Patents for class 418 subclass 139]139 Subclass 139 indent level is 1 Seal element between abutment and cylinder or working member
[List of Pre Grant Publications for class 418 subclass 140][List of Patents for class 418 subclass 140]140 Subclass 140 indent level is 1 Seal element between working member and cylinder
[List of Pre Grant Publications for class 418 subclass 145][List of Patents for class 418 subclass 145]145 Subclass 145 indent level is 1 Seal element between vane and cylinder
 [List of Pre Grant Publications for class 418 subclass 149][List of Patents for class 418 subclass 149]149 Subclass 149 indent level is 1 Seal element between stationary cylinder parts
 [List of Pre Grant Publications for class 418 subclass 150][List of Patents for class 418 subclass 150]150 WORKING CHAMBER SURFACE EXPRESSED MATHEMATICALLY
 [List of Pre Grant Publications for class 418 subclass 151][List of Patents for class 418 subclass 151]151 WEIGHT BALANCED WORKING MEMBER OR PARTITION
[List of Pre Grant Publications for class 418 subclass 152][List of Patents for class 418 subclass 152]152 NON-METALLIC WORKING MEMBER, CYLINDER OR PARTITION
 [List of Pre Grant Publications for class 418 subclass 156][List of Patents for class 418 subclass 156]156 RESILIENT WORKING MEMBER, CYLINDER OR PARTITION
 [List of Pre Grant Publications for class 418 subclass 157][List of Patents for class 418 subclass 157]157 SHOCK OR PRESSURE RELIEVING YIELDABLE PERIPHERAL WORKING MEMBER OR CYLINDER SURFACE PORTION
 [List of Pre Grant Publications for class 418 subclass 158][List of Patents for class 418 subclass 158]158 MAGNETICALLY BIASED VANE OR ABUTMENT
 [List of Pre Grant Publications for class 418 subclass 159][List of Patents for class 418 subclass 159]159 ADJUSTABLE WORKING CHAMBER PERIPHERAL WALL CONTROLS WORKING FLUID FLOW
[List of Pre Grant Publications for class 418 subclass 160][List of Patents for class 418 subclass 160]160 MOVING CYLINDER
 [List of Pre Grant Publications for class 418 subclass 178][List of Patents for class 418 subclass 178]178 WITH WEAR SURFACE TREATMENT OR INTEGRALLY PLATED WEAR LAYER
 [List of Pre Grant Publications for class 418 subclass 179][List of Patents for class 418 subclass 179]179 SPECIFIC MATERIAL
 [List of Pre Grant Publications for class 418 subclass 180][List of Patents for class 418 subclass 180]180 APERTURED BYPASS TO PRESSURIZE OR RELIEVE WORKING CHAMBER ZONE OF INTERMEDIATE PRESSURE
 [List of Pre Grant Publications for class 418 subclass 181][List of Patents for class 418 subclass 181]181 COMBINED
 [List of Pre Grant Publications for class 418 subclass 182][List of Patents for class 418 subclass 182]182 RELATIVELY MOVABLE WORKING MEMBER AND DRIVE SHAFT AXES
[List of Pre Grant Publications for class 418 subclass 183][List of Patents for class 418 subclass 183]183 WITH SUPPLY OR EXHAUST PASSAGE IN WORKING MEMBER
[List of Pre Grant Publications for class 418 subclass 189][List of Patents for class 418 subclass 189]189 TRAPPED FLUID RELIEF
[List of Pre Grant Publications for class 418 subclass 191][List of Patents for class 418 subclass 191]191 INTERENGAGING ROTATING MEMBERS
 [List of Pre Grant Publications for class 418 subclass 207][List of Patents for class 418 subclass 207]207 RELATIVELY MOVING WORK TRANSMITTING BARRIERS MOVE IN SEPARATE INTERSECTING CHAMBERS
 [List of Pre Grant Publications for class 418 subclass 208][List of Patents for class 418 subclass 208]208 MOVABLE INTERMEDIATE PARTITION ENGAGES PERIPHERIES OF PLURAL SPACED WORKING MEMBERS
[List of Pre Grant Publications for class 418 subclass 209][List of Patents for class 418 subclass 209]209 PLURAL WORKING CHAMBERS
 [List of Pre Grant Publications for class 418 subclass 220][List of Patents for class 418 subclass 220]220 HELICAL WORKING MEMBER
 [List of Pre Grant Publications for class 418 subclass 221][List of Patents for class 418 subclass 221]221 MOVING ABUTMENT AND VANE
 [List of Pre Grant Publications for class 418 subclass 222][List of Patents for class 418 subclass 222]222 SEPARABLE ABUTMENT
 [List of Pre Grant Publications for class 418 subclass 223][List of Patents for class 418 subclass 223]223 WITH SECONDARY VANE OR ABUTMENT MOVING MEANS
 [List of Pre Grant Publications for class 418 subclass 224][List of Patents for class 418 subclass 224]224 VALVED VANE OR ABUTMENT
[List of Pre Grant Publications for class 418 subclass 225][List of Patents for class 418 subclass 225]225 VANE OR ABUTMENT COMPRISES ROTATABLE ELEMENT
[List of Pre Grant Publications for class 418 subclass 228][List of Patents for class 418 subclass 228]228 AXIALLY MOVING VANE OR ABUTMENT
 [List of Pre Grant Publications for class 418 subclass 234][List of Patents for class 418 subclass 234]234 TAPERED VANE OR ABUTMENT (E.G., WEDGE SHAPED)
 [List of Pre Grant Publications for class 418 subclass 235][List of Patents for class 418 subclass 235]235 WEAR ELEMENTS OR ANTIFRICTION MEANS IN VANE OR ABUTMENT SLOT
[List of Pre Grant Publications for class 418 subclass 236][List of Patents for class 418 subclass 236]236 NON-RADIALLY POSITIONED SLIDING VANE OR ABUTMENT
 [List of Pre Grant Publications for class 418 subclass 239][List of Patents for class 418 subclass 239]239 ALTERNATELY USABLE VANE OR ABUTMENT STRUCTURE FOR REVERSE WORKING MEMBER ROTATION
 [List of Pre Grant Publications for class 418 subclass 240][List of Patents for class 418 subclass 240]240 INTERCONNECTED ABUTMENTS
 [List of Pre Grant Publications for class 418 subclass 241][List of Patents for class 418 subclass 241]241 ABUTMENT OR VANE HAS CONCURRENT ROCKING AND RADIALLY SLIDING MOVEMENT
 [List of Pre Grant Publications for class 418 subclass 242][List of Patents for class 418 subclass 242]242 SPACED OSCILLATING ABUTMENT PORTIONS ENGAGE WORKING MEMBER
[List of Pre Grant Publications for class 418 subclass 243][List of Patents for class 418 subclass 243]243 POSITIVELY ACTUATED ABUTMENT
 [List of Pre Grant Publications for class 418 subclass 252][List of Patents for class 418 subclass 252]252 WITH PROVISION FOR QUICK VANE REPLACEMENT
[List of Pre Grant Publications for class 418 subclass 253][List of Patents for class 418 subclass 253]253 INTERCONNECTED VANES
[List of Pre Grant Publications for class 418 subclass 259][List of Patents for class 418 subclass 259]259 POSITIVELY ACTUATED VANE
 [List of Pre Grant Publications for class 418 subclass 270][List of Patents for class 418 subclass 270]270 MISCELLANEOUS
 
FOREIGN ART COLLECTIONS
 
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DIGESTS
 
 [List of Pre Grant Publications for class 418 subclass DIG1][List of Patents for class 418 subclass DIG1] DIG1 NON-WORKING FLUID SEPARATION