| Class Number |
Class Name |
No. of Patents |
| 92/129 |
Abutment connection between working member and power transmission element |
208 |
| 92/107 |
Annular working member or annular linearly extending chamber therefor |
75 |
| 92/108 |
Axially extending hollow stem on working member |
75 |
| 92/DIG.1 |
Bearing on piston or cylinder |
22 |
| 92/34 |
Bellows type expansible chamber |
78 |
| 92/35 |
Expansible chamber formed by concentric bellows |
15 |
| 92/37 |
Plural bellows |
29 |
| 92/38 |
Non-working liquid moved by first bellows effects movement of second bellows |
11 |
| 92/39 |
With common movable wall |
16 |
| 92/47 |
Specific or diverse material (103) |
28 |
| 92/45 |
Superposed peripherally interconnected elements |
21 |
| 92/46 |
With nonmetallic portion |
9 |
| 92/44 |
With guide means |
28 |
| 92/36 |
With non-bellows type expansible chamber |
11 |
| 92/40 |
With separate biasing means |
15 |
| 92/42 |
With separate ring-like reinforcing element abutting pleat |
31 |
| 92/43 |
With stop means to limit axial movement of bellows |
27 |
| 92/41 |
With vibration damping means |
8 |
| 92/89 |
Collapsible chamber wall portion (e.g., hinged or flexible wall) |
27 |
| 92/90 |
Wall portion formed of flexible material |
82 |
| 92/93 |
Annular flexible wall portion peripherally sealed to spaced relatively fixed concentric rigid members |
24 |
| 92/105 |
Coaxial radially spaced relatively movable undistortable members joined by flexible wall |
23 |
| 92/96 |
Diaphragm type |
59 |
| 92/97 |
Axially spaced flexible wall portions with interposed incompressible means |
45 |
| 92/104 |
Corrugated |
24 |
| 92/98R |
Entire periphery secured to rigid working chamber forming wall |
199 |
| 92/101 |
Abutment connection between diaphragm and power transmission element |
47 |
| 92/98D |
Rolling diaphragm |
177 |
| 92/102 |
With separate seal means between diaphragm and member |
25 |
| 92/99 |
With undistortable member secured to central portion of diaphragm |
180 |
| 92/100 |
Member includes coextensive plate-like elements secured to opposite side of diaphragm |
73 |
| 92/103R |
Specific or diverse material (47) |
51 |
| 92/103M |
Metal diaphragm |
51 |
| 92/103SD |
Synthetic diaphragm (non-metal and non-rubber) |
60 |
| 92/103F |
With reinforcement embedded in diaphragm |
59 |
| 92/91 |
Envelope having restricted fluid opening |
26 |
| 92/92 |
Non-metallic |
152 |
| 92/94 |
With separate biasing means |
56 |
| 92/95 |
Adjustable |
9 |
| 92/145 |
Combined |
6 |
| 92/59 |
Convertible, or changeable by assembly or disassembly |
59 |
| 92/169.1 |
Cylinder detail |
293 |
| 92/171.1 |
Cylinder or liner retained in casing by casing closure or closure associated means |
173 |
| 92/170.1 |
Nonmetallic piston contacting portion |
115 |
| 92/169.2 |
With reinforcing member |
51 |
| 92/169.3 |
Extending through working member |
40 |
| 92/169.4 |
Coaxial sleeve or tube |
29 |
| 92/12.1 |
Displacement control of plural cylinders arranged in parallel, radial, or conical relationship with rotary transmission axis |
42 |
| 92/13.6 |
Adjustable abutment positioned within working chamber |
103 |
| 92/13.8 |
Adjustment means includes external axially extending threaded piston stem |
54 |
| 92/13.51 |
Axial adjustment of spaced, rigidly interconnected working member faces |
5 |
| 92/13.7 |
By adjusting or limiting motion of relatively movable power transmission element |
88 |
| 92/13.2 |
Flexible wall-type working member |
50 |
| 92/13.1 |
Having motor-operated adjustment |
75 |
| 92/13.5 |
Independent adjustment of opposite stroke limits of single reciprocating working member |
52 |
| 92/12.2 |
Parallel cylinders |
399 |
| 92/13 |
With adjustable means to vary stroke of working member |
77 |
| 92/13.4 |
Predetermined discrete incremental adjustment positions |
33 |
| 92/13.41 |
Adjustment by assembly or disassembly |
36 |
| 92/13.3 |
Stroke of one working member adjustable relative to another |
39 |
| 92/6R |
Effective area of working member end face selectively variable |
16 |
| 92/6D |
With diaphragm |
10 |
| 92/DIG.3 |
Flexible drive |
1 |
| 92/DIG.2 |
Fluid bearing |
26 |
| 92/106 |
Fluid conduit in constant communication with relatively rotatable working chamber |
45 |
| 92/163 |
Fluid conduit or port in fixed wall of working chamber |
61 |
| 92/164 |
Port in separable chamber end closure |
57 |
| 92/77 |
Ground embedded expansible chamber |
6 |
| 92/58.1 |
Knockdown or flow conduit storage or retrieval means |
20 |
| 92/83 |
Liquid pool sealing relatively movable chamber walls |
21 |
| 92/DIG.4 |
Lost motion |
14 |
| 92/261 |
Miscellaneous (e.g., crankcase) |
38 |
| 92/117R |
Moving cylinder |
58 |
| 92/118 |
Pivoted |
53 |
| 92/119 |
With fluid conduit extending through pivoted connection |
10 |
| 92/117A |
Stationary piston or movable piston with moving cylinder |
84 |
| 92/51 |
Mutually relatively movable cylinder or sleeve, member sealingly slidable therein and outer cylinder therefor |
63 |
| 92/52 |
Cylinder or sleeve forms working member |
105 |
| 92/53 |
With additional cylinder relatively slidable exteriorly of outer cylinder |
61 |
| 92/2 |
One working member reciprocates and another rotates common output member |
51 |
| 92/120 |
Oscillating working member or cylinder therefor |
53 |
| 92/121 |
Oscillatory shaft with radially extending vane |
70 |
| 92/122 |
Plural angularly related vanes |
53 |
| 92/125 |
Vane includes non-metallic peripheral sealing portion |
55 |
| 92/123 |
With lost motion connection between vane and shaft |
3 |
| 92/124 |
With resiliently biased vane peripheral portion |
11 |
| 92/86.5 |
Passage in cylinder for application of separate fluid to cylinder and piston side wall interface |
50 |
| 92/109 |
Piston with rigid axially extending hollow stem |
25 |
| 92/110 |
Hollow stem forms axially extending fluid passage |
112 |
| 92/112 |
Passage communicates with lateral port extending through piston side wall portion |
15 |
| 92/111 |
Plural laterally spaced passages |
34 |
| 92/113 |
Relatively movable elongated part within stem |
45 |
| 92/114 |
Part and stem relatively axially adjustable |
16 |
| 92/115 |
Part forms actuator for piston side wall portion adjusting means |
3 |
| 92/172 |
Piston |
132 |
| 92/179 |
Articulated connecting rod end forms portions of piston face |
10 |
| 92/247 |
Fluid pressure responsive axial movement of end face portion radially moves side wall portion |
23 |
| 92/174 |
Liquid between axially spaced side wall portions |
16 |
| 92/177 |
Non-circular |
97 |
| 92/248 |
Nonmetallic portion |
169 |
| 92/249 |
Flexible |
63 |
| 92/253 |
Axially spaced flexible side wall forming elements with interposed rigid spacer member |
22 |
| 92/250 |
Flexible side wall portion between separable axially spaced rigid members |
24 |
| 92/251 |
Wall portion comprises plural axially aligned flexible elements |
12 |
| 92/252 |
Three or more elements |
8 |
| 92/254 |
With imbedded reinforcing means (241) |
16 |
| 92/208 |
Open-ended hollow skirt type (e.g., trunk type) |
94 |
| 92/237 |
Circumferentially spaced portions at free end of skirt |
21 |
| 92/238 |
Connecting rod pin supporting boss laterally spaced from skirt portion |
33 |
| 92/211 |
Element of diverse material extending through skirt wall abuts circumferentially extending resilient ring |
1 |
| 92/213 |
End face surface includes areas of diverse material |
40 |
| 92/209 |
Frusto conical skirt |
10 |
| 92/233 |
Oval-shaped skirt portion |
32 |
| 92/216 |
Plural separable parts |
50 |
| 92/217 |
Interconnected by relative rotation of parts |
7 |
| 92/218 |
With means to prevent relative rotation of parts |
8 |
| 92/219 |
Interconnected without separate fastening means |
23 |
| 92/220 |
Threaded fastener |
39 |
| 92/221 |
Fastener extends through end face |
17 |
| 92/215 |
Separate resilient elements secures end face portion to skirt portion |
5 |
| 92/234 |
Skirt includes slit |
8 |
| 92/235 |
Slit transverse to skirt axis |
6 |
| 92/236 |
With additional angularly related slit |
2 |
| 92/232 |
Spaced skirt parts jointed by resilient arcuate web |
4 |
| 92/214 |
Spaced wall skirt |
8 |
| 92/222 |
Specific or diverse material; or welded, brazed or soldered joint |
92 |
| 92/223 |
Coated |
73 |
| 92/225 |
Element of diverse material for limiting radial movement of skirt part |
10 |
| 92/226 |
Bi-metallic restraining element |
0 |
| 92/228 |
Element portion embedded in piston part |
18 |
| 92/229 |
Annular element |
6 |
| 92/230 |
Element encircles connecting rod pin supporting boss |
5 |
| 92/227 |
Element positioned about periphery of skirt |
14 |
| 92/224 |
End face and skirt periphery of diverse material |
63 |
| 92/231 |
Welded, brazed or soldered (260) |
39 |
| 92/212 |
With nonmetallic portion |
97 |
| 92/239 |
With rib or strut means on piston part |
36 |
| 92/210 |
With weight balancing means |
3 |
| 92/192 |
Plural integral radially extending resilient metallic sealing tongues on side wall portion |
14 |
| 92/255 |
Plural separable parts |
123 |
| 92/256 |
Fastening means for parts include resilient element |
39 |
| 92/259 |
Side wall portion and relatively movable piston part having abutting inclined surfaces |
5 |
| 92/257 |
Side wall portion interposed between separable axially spaced rigid members |
27 |
| 92/258 |
Rigid members connected by coaxial rigid stem or rod |
41 |
| 92/201 |
Radially adjustable side wall portion |
7 |
| 92/202 |
Adjustable portion comprises open-ended hollow skirt |
3 |
| 92/203 |
Adjustment effected by wedge member movable relative to skirt (207) |
2 |
| 92/204 |
Adjustment effected by selectively removable spacer or skim element between relatively movable parts |
0 |
| 92/207 |
Adjustment effected by wedge member movable relative to side wall portion (203) |
10 |
| 92/205 |
Side wall portion positioned between relatively axially adjustable rigid end members |
9 |
| 92/206 |
With beveled abutting surfaces between side wall portion and an end member |
4 |
| 92/240 |
Side wall portion includes peripheral axially extending flexible lip |
93 |
| 92/245 |
Lip forms peripheral portion of imperforate cup shaped element |
34 |
| 92/246 |
Metallic lip |
11 |
| 92/242 |
Plural axially spaced lips |
12 |
| 92/243 |
Oppositely facing |
21 |
| 92/244 |
Lips formed on separable elements |
20 |
| 92/241 |
With embedded reinforcing means in lip portion (254) |
22 |
| 92/175 |
Spaced faces joined by rigid stem (e.g., spool) |
17 |
| 92/260 |
Welded, brazed or soldered (231) |
36 |
| 92/178 |
With ball or roller anti-friction means on side wall portion |
21 |
| 92/176 |
With enclosed insulating space in piston part |
47 |
| 92/181R |
With fluid passage in piston face |
49 |
| 92/182 |
Passage communicates with packing receiving recess |
37 |
| 92/184 |
Passage in opposed piston faces |
9 |
| 92/185 |
Passages communicate with common packing receiving recess |
12 |
| 92/183 |
Valved |
23 |
| 92/181P |
Passage thru piston to opposite chamber |
47 |
| 92/186 |
With ported chamber in piston part for circulating heat exchange fluid |
106 |
| 92/173 |
With rotation imparting fluid impinging surface on piston part |
11 |
| 92/187 |
With separable means for pivotally mounting connecting rod to piston |
186 |
| 92/191 |
Fastener for separable means extends through end face portion |
6 |
| 92/188 |
Means retained by annulus positioned about piston periphery |
15 |
| 92/189 |
Piston formed of separable end face and side wall portion |
16 |
| 92/190 |
Means secures end face portion to side wall portion |
36 |
| 92/193 |
With spring means for biasing side wall portion radially |
33 |
| 92/199 |
Adjustable bias (197) |
2 |
| 92/194 |
Biased portion comprises peripheral axially extending flexible lip |
23 |
| 92/195 |
Open ended hollow skirt comprises biased portion |
3 |
| 92/197 |
Adjustable bias (199) |
0 |
| 92/198 |
Split annular type spring (200) |
1 |
| 92/196 |
Spring part positioned in skirt slit |
0 |
| 92/200 |
Split annular type spring (198) |
4 |
| 92/48 |
Plural flexible wall working members |
175 |
| 92/49 |
Diaphragm type having working fluid contacting areas of different size |
26 |
| 92/50 |
Oppositely movable walls of common chamber (69) (75) |
26 |
| 92/146 |
Plural unitarily mounted cylinders or frame therefor (161) |
87 |
| 92/151 |
Coaxial cylinders (150) |
97 |
| 92/152 |
With different cross-sectional areas |
42 |
| 92/147 |
With casing or support for rotary shaft |
34 |
| 92/150 |
Coaxial cylinder (151) |
17 |
| 92/148 |
Three or more radially arranged cylinders |
29 |
| 92/149 |
V-type |
5 |
| 92/31 |
Rectilinearly moving working member and coaxial or parallel element slidably interengaged for relative rotary movement |
122 |
| 92/33 |
Element extends through working member portion |
110 |
| 92/32 |
Working fluid-actuated interengaging means permits unidirectional rotation of element relative to fixed part |
19 |
| 92/61 |
Relatively movable working members |
46 |
| 92/62 |
First working member moves second coaxial working member through separating abutment surfaces |
92 |
| 92/63 |
With separate biasing means for a working member |
153 |
| 92/76 |
Interconnected by linkage having relatively movable members |
25 |
| 92/68 |
Interconnected with common rotatable shaft |
54 |
| 92/69R |
Oppositely movable walls of common chamber (50) (75) |
28 |
| 92/69A |
One piston rod passes through opposite piston rod |
2 |
| 92/70 |
Shaft axis parallel to axes of working members (71) |
10 |
| 92/69B |
Single crankshaft offset from center of work chamber |
3 |
| 92/72 |
Shaft axis intersected by axes of working members |
156 |
| 92/73 |
Parallel working members |
18 |
| 92/74 |
Shaft extends transversely through working members |
4 |
| 92/71 |
Shaft axis parallel to axes of working members (70) |
540 |
| 92/66 |
Moving cylinders |
45 |
| 92/64 |
One a flexible wall type |
44 |
| 92/75 |
Oppositely movable walls of common chamber (50) (69) |
63 |
| 92/67 |
Oscillating working members |
8 |
| 92/65 |
Rigid stem on first working member portion extends through second working member |
70 |
| 92/84 |
Resilient means interposed between working member and relatively movable power transmission element |
94 |
| 92/54 |
Rotating cylinder |
9 |
| 92/55 |
Fluid conduit coaxial with axis of rotation |
4 |
| 92/56 |
Plural cylinders |
11 |
| 92/58 |
Axes of cylinders intersect axis of rotation at common point |
52 |
| 92/57 |
Axes of cylinders parallel to axis of rotation |
142 |
| 92/88 |
Sealed opening in longitudinal wall of chamber for receiving working member portion |
165 |
| 92/60.5 |
Selective clearance control |
54 |
| 92/162R |
Spaced cylinder and piston walls define passage between opposed piston side wall ends |
62 |
| 92/162P |
Passage in piston |
15 |
| 92/5R |
With (1) signal or indicator or (2) inspection window in expansible chamber wall portion |
344 |
| 92/5L |
With lock |
35 |
| 92/128 |
With assembly or disassembly facilitating means |
361 |
| 92/116 |
With axially extending element mounted on working member for relative rotary movement only |
26 |
| 92/85R |
With cushioning means effective over a portion only of stroke |
93 |
| 92/85B |
Fluid spring |
164 |
| 92/85A |
Metal spring |
41 |
| 92/139 |
With cylinder wall contacting guide articulated to piston |
7 |
| 92/126 |
With differential radial thrust producing means for working member |
15 |
| 92/127 |
Fluid pressure type |
23 |
| 92/3 |
With disengageable rotary drive for moving working member |
2 |
| 92/144 |
With encompassing heat exchange modifying space or jacket |
46 |
| 92/60 |
With flexible or resiliently biased non-working member movable wall in constant communication with working chamber |
31 |
| 92/137 |
With flexible transmission element secured to working member |
128 |
| 92/78 |
With fluid purifying means |
63 |
| 92/79 |
Means separates gas from liquid |
41 |
| 92/80 |
With force exerting means to move fluid from non-working chamber |
31 |
| 92/165R |
With guide or seal on cylinder end portion for piston or member moved by piston |
269 |
| 92/166 |
Additional guide is spaced chamber end wall |
56 |
| 92/167 |
Guide movable laterally |
47 |
| 92/168 |
Non-metallic seal means between piston or member and end portion |
296 |
| 92/165PR |
Prevent rotation |
179 |
| 92/138 |
With linkage or transmission engaging portion intermediate spaced working member end faces |
99 |
| 92/140 |
With linkage or transmission having relatively movable members |
149 |
| 92/153 |
With lubricating means |
121 |
| 92/154 |
Lubricant entrained by working fluid |
49 |
| 92/157 |
Lubricant passage extends axially through articulated piston rod |
52 |
| 92/158 |
Piston has lubricant retaining or conducting means |
101 |
| 92/159 |
Pocket or chamber |
99 |
| 92/160 |
Port or passage extending through side wall portion |
70 |
| 92/155 |
Portion of expansible chamber device includes solid lubricating material |
61 |
| 92/156 |
Valve means in lubricant passage |
30 |
| 92/8 |
With means to control flow of non-working arresting fluid for working member |
20 |
| 92/12 |
Adjustable throttle (11) |
15 |
| 92/9 |
Flow control means positioned between chambers having a common wall movable with working member |
29 |
| 92/10 |
Work member position control |
14 |
| 92/11 |
With auxiliary adjustable throttle (12) |
6 |
| 92/82 |
With means to control fluid flow from non-working chamber |
73 |
| 92/143 |
With movement damping means (e.g., fluid flow restrictor) |
77 |
| 92/87 |
With non-sealing cleaning means |
32 |
| 92/7 |
With overcenter means to bias working member in opposite directions over different portions of stroke |
8 |
| 92/29 |
With releasable latch means between working member and power transmission element axially slidable therein |
56 |
| 92/15 |
With releasable stop or latch means to prevent movement of working member |
58 |
| 92/17 |
Engages member coaxial with and rotatable relative to working member |
43 |
| 92/20 |
Engages power element movable relative to working member |
24 |
| 92/28 |
Fluid actuated (27) |
61 |
| 92/18 |
Includes interfitting parts engageable at plural positions including position intermediate stroke limits |
32 |
| 92/19 |
Self-engaging |
30 |
| 92/23 |
Means includes element interfitting between working member and fixed part |
104 |
| 92/24 |
Element actuated or retained in operative position by relatively movable fluid responsive member |
103 |
| 92/26 |
Resilient element |
25 |
| 92/25 |
With pivoted link between element and member |
22 |
| 92/27 |
Fluid actuated (28) |
100 |
| 92/21R |
Plural selectively operable actuators for releasable means |
6 |
| 92/21MR |
Manual release |
28 |
| 92/22 |
Relatively movable working members with interdependent means |
8 |
| 92/16 |
With timing or delay means |
3 |
| 92/86 |
With removal conduit for liquid seepage from expansible chamber |
122 |
| 92/142 |
With reservoir for non-compressible working fluid |
25 |
| 92/30 |
With resilient detent |
32 |
| 92/141 |
With separable fluid deflecting shield or baffle on working member |
3 |
| 92/130R |
With separate biasing means for working member |
103 |
| 92/133 |
Adjustable |
21 |
| 92/130C |
Bias external of both expanding and contracting chamber |
51 |
| 92/130A |
Bias normally held inoperative by fluid pressure |
105 |
| 92/130B |
Bias other than coil spring |
42 |
| 92/135 |
Biasing means engages working fluid contacting portion of working member |
20 |
| 92/131 |
Biasing means maintains working member intermediate stroke end limits |
49 |
| 92/134 |
Fluid spring |
72 |
| 92/130D |
Plural coil springs |
48 |
| 92/132 |
Tension spring |
19 |
| 92/161 |
With support or frame (146) |
144 |
| 92/161.5 |
Wheel supported |
3 |
| 92/1 |
With temperature compensation |
20 |
| 92/136 |
With toothed gear, spline or thread rigid with working member |
209 |
| 92/81 |
Working member forms reservoir for non-compressible working fluid |
11 |
| 92/14 |
Working member moves load and latching means for load |
25 |
