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| Class 418 | ROTARY EXPANSIBLE CHAMBER DEVICES |
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![[List of Pre Grant Publications for class 418 subclass 1]](../as.gif) | ![[List of Patents for class 418 subclass 1]](../ps.gif) | 1 | METHODS |
| | 2 | WITH SIGNAL, INDICATOR OR TRANSPARENT INSPECTION MEANS |
| | 3 | DIVERSE ROTARY EXPANSIBLE CHAMBER DEVICES |
| | 4 | WORKING MEMBER OR CYLINDER SURFACE HAS ALTERNATE LINEAR AND CURVILINEAR MOVEMENT (E.G., ENDLESS) |
| | 5 | MULTISTAGE |
| | 6 |  One working chamber stage encircles another |
| | 7 | Successive stages alternately produce work |
| | 8 | Working fluid engages working member serially in circumferentially spaced working chambers |
| | 9 | Interengaging rotary members |
| | 11 | Sliding abutment |
| | 12 | Swinging abutment |
| | 13 | Sliding vane |
| | 14 | WITH DELAYED LOAD |
| | 15 | WITH PLURAL WORKING FLUID INLET OR OUTLET PASSAGES |
| | 16 | WITH CHANGEABLE WORKING CHAMBER MAGNITUDE |
| | 17 | Speed controlled |
| | 18 | Intermittently accelerated and receding members rotate in same path (alternating piston type) |
| | 19 | Intermeshing rotary members |
| | 22 | Axially or radially spaced working chambers |
| | 23 | By adjustably limiting vane or abutment movement |
| | 24 | Spring or fluid biased movable member |
| | 28 | By axial movement of movable member |
| | 29 | Rotating inner working or reacting member repositioned relative to cylinder |
| | 30 | By cylinder or cylinder portion pivotal movement |
| | 31 | Cylinder or cylinder portion moved linearly and radially |
| | 32 | SELF-ACTING UNIDIRECTIONAL FLOW WITH REVERSE ROTATION OR REVERSE FLOW WITH UNIDIRECTIONAL ROTATION |
| | 33 | INTERMITTENTLY ACCELERATED AND RECEDING MEMBERS ROTATE IN SAME PATH (ALTERNATING PISTON TYPE) |
| | 39 | CONVERTIBLE OR CHANGEABLE BY ASSEMBLY OR DISASSEMBLY |
| | 40 | SPEED CONTROLLED |
| | 41 | Rotating weight valves working fluid passage |
| | 42 | Rotating weight positioned on or within inner rotating member |
| | 43 | Weight rotates about axially extending axis |
| | 45 | COLLAPSIBLE PROGRESSIVELY DEFORMED WORKING CHAMBER WALL |
| | 46 | WITH REMOVAL OR ACCOMMODATION OF SOLID FOREIGN MATERIAL IN WORKING FLUID |
| | 48 | UNLIKE HELICAL SURFACES ON RELATIVELY WOBBLING ROTATING MEMBER AND ENCOMPASSING CYLINDER (E.G., MOINEAU TYPE) |
| | 49 | NUTATING WORKING MEMBER |
| | 50 | Non-metallic working member or working chamber portion |
| | 51 | With mechanical sealing |
| | 52 | Working member common to plural working chambers |
| | 54 | WORKING MEMBER HAS PLANETARY OR PLANETATING MOVEMENT |
| | 55.1 | Helical working member, e.g., scroll |
| | 55.2 |  Having specific wrap or end plate, e.g., shape, material, coating |
| | 55.3 | With specific rotation preventing or rotation coupling means |
| | 55.4 | With mechanical sealing |
| | 55.5 | With biasing means, e.g., axial or radial |
| | 55.6 | With lubricant, liquid seal or nonworking fluid separation |
| | 56 | Non-metallic working member, cylinder or partition |
| | 57 | Adjustable or resiliently biased working member |
| | 58 | Plural working members or chambers |
| | 59 | Radially spaced working chambers |
| | 60 | Axially spaced working members |
| | 61.1 | Circumferentially spaced working chambers |
| | 62 | Partition pivotally connected to working member and cylinder |
| | 63 | With relatively movable partition member |
| | 68 | ROTATING INTERNAL MEMBER ROTATES AND OSCILLATES OR RECIPROCATES |
| | 69 | WITH FRANGIBLE DRIVE CONNECTION OR CLUTCH |
| | 70 | WITH RAPID DISASSEMBLY FEATURE (I.E., WITHOUT TOOLS) |
| | 71 | PRESSURE FLUID RADIALLY BALANCES WORKING OR ROTATING ABUTMENT MEMBER |
| | 72 | With counterbalancing fluid passage through rotating member |
| | 73 | Counterbalancing fluid directed to rotating member shaft bearing |
| | 74 | Counterbalancing fluid directed to intertooth spaces or spaces between adjacent vanes |
| | 75 | GROOVED ABUTTING CYLINDER-ROTATING MEMBER END SURFACES |
| | 76 | Non-working fluid directed to groove |
| | 77 | Grooved working member surface |
| | 78 | Working fluid portion fills intertooth spaces or spaces between adjacent vanes |
| | 79 | Radial groove |
| | 80 | Radially spaced grooves |
| | 81 | Annular groove or recess completely encircles rotation axis |
| | 82 | Groove communicates with vane slot |
| | 83 | HEAT EXCHANGE OR NON-WORKING FLUID LUBRICATING OR SEALING |
| | 84 | With condition responsive control of non-working fluid |
| | 85 | With heat exchange means for non-working fluid |
| | 86 | Heat exchange by diverted incoming or outgoing working fluid |
| | 87 | Valve regulated non-working fluid |
| | 88 | With pump for non-working fluid |
| | 89 | With filter for non-working fluid |
| | 90 | Wick or absorbent material feed |
| | 91 | Non-working fluid passage in inner working or reacting member |
| | 92 | With non-working fluid passage in partition |
| | 93 | Non-working fluid biases vane |
| | 94 | With non-working fluid passage in drive shaft |
| | 95 | Vent or non-seal means prevents working and non-working fluid intermix |
| | 96 | Outer cylinder member immersed or submerged in non-working fluid |
| | 97 | Non-working and working fluids intermix in working chamber |
| | 98 | Non-working fluid initially directed to shaft bearing |
| | 99 | Non-working fluid initially directed to working member |
| | 100 | Intermixed incoming working and non-working fluids |
| | 101 | With coolant air impelling means or finned cylinder surface |
| | 102 | SHAFT OR TRUNNION LUBRICATION OR SEALING BY DIVERTED WORKING FLUID PORTION |
| | 103 | WORKING MEMBER PERIPHERAL SURFACE COMPRISES RELATIVELY CIRCUMFERENTIALLY MOVABLE SEGMENTS |
| | 104 | WITH MECHANICAL SEALING |
| | 105 | Abutment position adjustment |
| | 106 | Vane position adjustment |
| | 107 | By changing working member or cylinder relative position |
| | 110 | By axially relatively moving working member sections |
| | 111 | By axially relatively moving vane or abutment sections |
| | 112 | Seal on working member periphery separates inlet and outlet ports |
