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Class Number: 92
Class Title: EXPANSIBLE CHAMBER DEVICES
Subclass Subclass
Number Title
1 WITH TEMPERATURE COMPENSATION
2 ONE WORKING MEMBER RECIPROCATES AND ANOTHER ROTATES COMMON
OUTPUT MEMBER
3 WITH DISENGAGEABLE ROTARY DRIVE FOR MOVING WORKING MEMBER
5 R WITH (1) SIGNAL OR INDICATOR OR (2) INSPECTION WINDOW IN
EXPANSIBLE CHAMBER WALL PORTION
5 L .With lock
6 R EFFECTIVE AREA OF WORKING MEMBER END FACE SELECTIVELY
VARIABLE
6 D .With diaphragm
7 WITH OVERCENTER MEANS TO BIAS WORKING MEMBER IN OPPOSITE
DIRECTIONS OVER DIFFERENT PORTIONS OF STROKE
8 WITH MEANS TO CONTROL FLOW OF NON-WORKING ARRESTING FLUID FOR
WORKING MEMBER
9 .Flow control means positioned between chambers having a common
wall movable with working member
10 .Work member position control
11 ..With auxiliary adjustable throttle (12)
12 .Adjustable throttle (11)
12.1 DISPLACEMENT CONTROL OF PLURAL CYLINDERS ARRANGED IN
PARALLEL, RADIAL, OR CONICAL RELATIONSHIP WITH ROTARY
TRANSMISSION AXIS
12.2 .Parallel cylinders
13 ..WITH ADJUSTABLE MEANS TO VARY STROKE OF WORKING MEMBER
13.1 .Having motor-operated adjustment
13.2 .Flexible wall-type working member
13.3 .Stroke of one working member adjustable relative to
another
13.4 .Predetermined discrete incremental adjustment positions
13.41 ..Adjustment by assembly or disassembly
13.5 .Independent adjustment of opposite stroke limits of single
reciprocating working member
13.51 .Axial adjustment of spaced, rigidly interconnected working
member faces
13.6 .Adjustable abutment positioned within working chamber
13.7 .BY adjusting or limiting motion of relatively movable
power transmission element
13.8 .Adjustment means includes external axially extending
threaded piston stem
14 WORKING MEMBER MOVES LOAD AND LATCHING MEANS FOR LOAD
15 WITH RELEASABLE STOP OR LATCH MEANS TO PREVENT MOVEMENT OF
WORKING MEMBER
16 .With timing or delay means
17 .Engages member coaxial with and rotatable relative to working
member
18 .Includes interfitting parts engageable at plural positions
including position intermediate stroke limits
19 ..Self-engaging
20 .Engages power element movable relative to working member
21 R .Plural selectively operable actuators for releasable
means
21 MR ..Manual releasee
22 .Relatively movable working members with interdependent means
23 .Means includes element interfitting between working member and
fixed part
24 ..Element actuated or retained in operative position by
relatively movable fluid responsive member
25 ...With pivoted link between element and member
26 ...Resilient element
27 ..Fluid actuated (28)
28 .Fluid actuated (27)
29 WITH RELEASABLE LATCH MEANS BETWEEN WORKING MEMBER AND POWER
TRANSMISSION ELEMENT AXIALLY SLIDABLE THEREIN
30 WITH RESILIENT DETENT
31 RECTILINEARLY MOVING WORKING MEMBER AND COAXIAL OR PARALLEL
ELEMENT SLIDABLY INTERENGAGED FOR RELATIVE ROTARY MOVEMENT
32 .Working fluid-actuated interengaging means permits
unidirectional rotation of element relative to fixed part
33 .Element extends through working member portion
34 BELLOWS TYPE EXPANSIBLE CHAMBER
35 .Expansible chamber formed by concentric bellows
36 .With non-bellows type expansible chamber
37 .Plural bellows
38 ..Non-working liquid moved by first bellows effects movement of
second bellows
39 ..With common movable wall
40 .With separate biasing means
41 .With vibration damping means
42 .With separate ring-like reinforcing element abutting pleat
43 .With stop means to limit axial movement of bellows
44 .With guide means
45 .Superposed peripherally interconnected elements
46 ..With nonmetallic portion
47 .Specific or diverse material (103)
48 PLURAL FLEXIBLE WALL WORKING MEMBERS
49 .Diaphragm type having working fluid contacting areas of
different size
50 .Oppositely movable walls of common chamber (69) (75)
51 MUTUALLY RELATIVELY MOVABLE CYLINDER OR SLEEVE, MEMBER SEALINGLY
SLIDABLE THEREIN AND OUTER CYLINDER THEREFOR
52 .Cylinder or sleeve forms working member
53 .With additional cylinder relatively slidable exteriorly of
outer cylinder
54 ROTATING CYLINDER
55 .Fluid conduit coaxial with axis of rotation
56 .Plural cylinders
57 ..Axes of cylinders parallel to axis of rotation
58 ..Axes of cylinders intersect axis of rotation at common point
58.1 KNOCKDOWN OR FLOW CONDUIT STORAGE OR RETRIEVAL MEANS
59 CONVERTIBLE, OR CHANGEABLE BY ASSEMBLY OR DISASSEMBLY
60 WITH FLEXIBLE OR RESILIENTLY BIASED NON-WORKING MEMBER MOVABLE
WALL IN CONSTANT COMMUNICATION WITH WORKING CHAMBER
60.5 SELECTIVE CLEARANCE CONTROL
61 RELATIVELY MOVABLE WORKING MEMBERS
62 .First working member moves second coaxial working member
through separating abutment surfaces
63 ..With separate biasing means for a working member
64 .One a flexible wall type
65 .Rigid stem on first working member portion extends through
second working memberr
66 .Moving cylinders
67 .Oscillating working members
68 .Interconnected with common rotatable shaft
69 R ..Oppositely movable walls of common chamber (50) (75)
70 ...Shaft axis parallel to axes of working members (71)
69 A ...One piston rod passes through opposite piston rod
69 B ...Single crankshaft offset from center of work chamber
71 ..Shaft axis parallel to axes of working members (70)
72 ..Shaft axis intersected by axes of working members
73 ...Parallel working members
74 ....Shaft extends transversely through working members
75 .Oppositely movable walls of common chamber (50) (69)
76 .Interconnected by linkage having relatively movable members
77 GROUND EMBEDDED EXPANSIBLE CHAMBER
78 WITH FLUID PURIFYING MEANS
79 .Means separates gas from liquid
80 WITH FORCE EXERTING MEANS TO MOVE FLUID FROM NON-WORKING
CHAMBER
81 WORKING MEMBER FORMS RESERVOIR FOR NON-COMPRESSIBLE WORKING
FLUID
82 WITH MEANS TO CONTROL FLUID FLOW FROM NON-WORKING CHAMBER
83 LIQUID POOL SEALING RELATIVELY MOVABLE CHAMBER WALLS
84 RESILIENT MEANS INTERPOSED BETWEEN WORKING MEMBER AND RELATIVELY
MOVABLE POWER TRANSMISSION ELEMENT
85 R WITH CUSHIONING MEANS EFFECTIVE OVER A PORTION ONLY OF
STROKE
85 A .Metal spring
85 B .Fluid spring
86 WITH REMOVAL CONDUIT FOR LIQUID SEEPAGE FROM EXPANSIBLE CHAMBER
86.5 PASSAGE IN CYLINDER FOR APPLICATION OF SEPARATE FLUID TO
CYLINDER AND PISTON SIDE WALL INTERFACE
87 WITH NON-SEALING CLEANING MEANS
88 SEALED OPENING IN LONGITUDINAL WALL OF CHAMBER FOR RECEIVING
WORKING MEMBER PORTION
89 COLLAPSIBLE CHAMBER WALL PORTION (E.G., HINGED OR FLEXIBLE
WALL)
90 .Wall portion formed of flexible material
91 ..Envelope having restricted fluid opening
92 ...Non-metallic
93 ..Annular flexible wall portion peripherally sealed to spaced
relatively fixed concentric rigid members
94 ..With separate biasing means
95 ...Adjustable
96 ..Diaphragm type
97 ...Axially spaced flexible wall portions with interposed
incompressible means
98 R ...Entire periphery secured to rigid working chamber
forming wall
99 ....With undistortable member secured to central portion of
diaphragm
100 .....Member includes coextensive plate-like elements secured to
opposite side of diaphragm
101 ....Abutment connection between diaphragm and power transmission
element
102 ....With separate seal means between diaphragm and member
98 D ....Rolling diaphragm
103 R ...Specific or diverse material (47)
103 F ....With reinforcement embedded in diaphragmm
103 SD ....Synthetic diaphragm (non-metal and non-rubber)
103 M ....Metal diaphragm
104 ...Corrugated
105 ..Coaxial radially spaced relatively movable undistortable
members joined by flexible wall
106 FLUID CONDUIT IN CONSTANT COMMUNICATION WITH RELATIVELY
ROTATABLE WORKING CHAMBER
107 ANNULAR WORKING MEMBER OR ANNULAR LINEARLY EXTENDING CHAMBER
THEREFOR
108 .Axially extending hollow stem on working member
109 PISTON WITH RIGID AXIALLY EXTENDING HOLLOW STEM
110 .Hollow stem forms axially extending fluid passage
111 ..Plural laterally spaced passages
112 ..Passage communicates with lateral port extending through
piston side wall portion
113 .Relatively movable elongated part within stem
114 ..Part and stem relatively axially adjustable
115 ...Part forms actuator for piston side wall portion adjusting
means
116 WITH AXIALLY EXTENDING ELEMENT MOUNTED ON WORKING MEMBER FOR
RELATIVE ROTARY MOVEMENT ONLY
117 R MOVING CYLINDER
118 .Pivoted
119 ..With fluid conduit extending through pivoted connection
117 A .Stationary piston or movable piston with moving cylinder
120 OSCILLATING WORKING MEMBER OR CYLINDER THEREFOR
121 .Oscillatory shaft with radially extending vane
122 ..Plural angularly related vanes
123 ..With lost motion connection between vane and shaft
124 ..With resiliently biased vane peripheral portion
125 ..Vane includes non-metallic peripheral sealing portion
126 WITH DIFFERENTIAL RADIAL THRUST PRODUCING MEANS FOR WORKING
MEMBER
127 .Fluid pressure type
128 WITH ASSEMBLY OR DISASSEMBLY FACILITATING MEANS
129 ABUTMENT CONNECTION BETWEEN WORKING MEMBER AND POWER
TRANSMISSION ELEMENT
130 R WITH SEPARATE BIASING MEANS FOR WORKING MEMBER
131 .Biasing means maintains working member intermediate stroke end
limits
132 .Tension spring
133 .Adjustable
134 .Fluid spring
135 .Biasing means engages working fluid contacting portion of
working member
130 A .Bias normally held inoperative by fluid pressure
130 B .Bias other than coil spring
130 C .Bias external of both expanding and contracting chamber
130 D .Plural coil springs
136 WITH TOOTHED GEAR, SPLINE OR THREAD RIGID WITH WORKING MEMBER
137 WITH FLEXIBLE TRANSMISSION ELEMENT SECURED TO WORKING MEMBER
138 WITH LINKAGE OR TRANSMISSION ENGAGING PORTION INTERMEDIATE
SPACED WORKING MEMBER END FACES
139 WITH CYLINDER WALL CONTACTING GUIDE ARTICULATED TO PISTON
140 WITH LINKAGE OR TRANSMISSION HAVING RELATIVELY MOVABLE MEMBERS
141 WITH SEPARABLE FLUID DEFLECTING SHIELD OR BAFFLE ON WORKING
MEMBER
142 WITH RESERVOIR FOR NON-COMPRESSIBLE WORKING FLUIDD
143 WITH MOVEMENT DAMPING MEANS (E.G., FLUID FLOW RESTRICTOR)
144 WITH ENCOMPASSING HEAT EXCHANGE MODIFYING SPACE OR JACKET
145 COMBINED
146 PLURAL UNITARILY MOUNTED CYLINDERS OR FRAME THEREFOR (161)
147 .With casing or support for rotary shaft
148 ..Three or more radially arranged cylinders
149 ..V-type
150 ..Coaxial cylinder (151)
151 .Coaxial cylinders (150)
152 ..With different cross-sectional areas
153 WITH LUBRICATING MEANS
154 .Lubricant entrained by working fluid
155 .Portion of expansible chamber device includes solid lubricating
material
156 .Valve means in lubricant passage
157 .Lubricant passage extends axially through articulated piston
rod
158 .Piston has lubricant retaining or conducting means
159 ..Pocket or chamber
160 ..Port or passage extending through side wall portion
161 WITH SUPPORT OR FRAME (146)
161.5 .Wheel supported
162 R SPACED CYLINDER AND PISTON WALLS DEFINE PASSAGE BETWEEN
OPPOSED PISTON SIDE WALL ENDS
162 P .Passage in piston
163 FLUID CONDUIT OR PORT IN FIXED WALL OF WORKING CHAMBER
164 .Port in separable chamber end closure
165 R WITH GUIDE OR SEAL ON CYLINDER END PORTION FOR PISTON OR
MEMBER MOVED BY PISTON
166 .Additional guide is spaced chamber end wall
167 .Guide movable laterally
168 .Non-metallic seal means between piston or member and end
portion
165 PR .Prevent rotation
169.1 CYLINDER DETAIL
169.2 .With reinforcing member
169.3 ..Extending through working member
169.4 ...Coaxial sleeve or tube
170.1 .Nonmetallic piston contacting portion
171.1 .Cylinder or liner retained in casing by casing closure or
closure associated means
172 PISTON
173 .With rotation imparting fluid impinging surface on piston part
174 .Liquid between axially spaced side wall portions
175 .Spaced faces joined by rigid stem (e.g., spool)
176 .With enclosed insulating space in piston part
177 .Non-circular
178 .With ball or roller anti-friction means on side wall portion
179 .Articulated connecting rod end forms portions of piston face
181 R .With fluid passage in piston face
182 ..Passage communicates with packing receiving recess
183 ...Valved
184 ...Passage in opposed piston faces
185 ....Passages communicate with common packing receiving recess
181 P ..Passage thru piston to opposite chamber
186 .With ported chamber in piston part for circulating heat
exchange fluid
187 .With separable means for pivotally mounting connecting rod too
piston
188 ..Means retained by annulus positioned about piston periphery
189 ..Piston formed of separable end face and side wall portion
190 ...Means secures end face portion to side wall portion
191 ..Fastener for separable means extends through end face portion
192 .Plural integral radially extending resilient metallic sealing
tongues on side wall portion
193 .With spring means for biasing side wall portion radially
194 ..Biased portion comprises peripheral axially extending flexible
lip
195 ..Open ended hollow skirt comprises biased portion
196 ...Spring part positioned in skirt slit
197 ...Adjustable bias (199)
198 ...Split annular type spring (200)
199 ..Adjustable bias (197)
200 ..Split annular type spring (198)
201 .Radially adjustable side wall portion
202 ..Adjustable portion comprises open-ended hollow skirt
203 ...Adjustment effected by wedge member movable relative to skirt
(207)
204 ..Adjustment effected by selectively removable spacer or skim
element between relatively movable parts
205 ..Side wall portion positioned between relatively axially
adjustable rigid end members
206 ...With beveled abutting surfaces between side wall portion and
an end member
207 ..Adjustment effected by wedge member movable relative to side
wall portion (203)
208 .Open-ended hollow skirt type (e.g., trunk type)
209 ..Frusto conical skirt
210 ..With weight balancing means
211 ..Element of diverse material extending through skirt wall abuts
circumferentially extending resilient ring
212 ..With nonmetallic portion
213 ..End face surface includes areas of diverse material
214 ..Spaced wall skirt
215 ..Separate resilient elements secures end face portion to skirt
portion
216 ..Plural separable parts
217 ...Interconnected by relative rotation of parts
218 ....With means to prevent relative rotation of parts
219 ...Interconnected without separate fastening means
220 ...Threaded fastener
221 ....Fastener extends through end face
222 ..Specific or diverse material; or welded, brazed or soldered
joint
223 ...Coated
224 ...End face and skirt periphery of diverse material
225 ...Element of diverse material for limiting radial movement of
skirt part
226 ....Bi-metallic restraining element
227 ....Element positioned about periphery of skirt
228 ....Element portion embedded in piston part
229 .....Annular element
230 ......Element encircles connecting rod pin supporting boss
231 ...Welded, brazed or soldered (260)
232 ..Spaced skirt parts jointed by resilient arcuate web
233 ..Oval-shaped skirt portionn
234 ..Skirt includes slit
235 ...Slit transverse to skirt axis
236 ....With additional angularly related slit
237 ..Circumferentially spaced portions at free end of skirt
238 ..Connecting rod pin supporting boss laterally spaced from skirt
portion
239 ..With rib or strut means on piston part
240 .Side wall portion includes peripheral axially extending
flexible lip
241 ..With embedded reinforcing means in lip portion (254)
242 ..Plural axially spaced lips
243 ...Oppositely facing
244 ....Lips formed on separable elements
245 ..Lip forms peripheral portion of imperforate cup shaped
element
246 ..Metallic lip
247 .Fluid pressure responsive axial movement of end face portion
radially moves side wall portion
248 .Nonmetallic portion
249 ..Flexible
250 ...Flexible side wall portion between separable axially spaced
rigid members
251 ....Wall portion comprises plural axially aligned flexible
elements
252 .....Three or more elements
253 ...Axially spaced flexible side wall forming elements with
interposed rigid spacer member
254 ...With imbedded reinforcing means (241)
255 .Plural separable parts
256 ..Fastening means for parts include resilient element
257 ..Side wall portion interposed between separable axially spaced
rigid members
258 ...Rigid members connected by coaxial rigid stem or rod
259 ..Side wall portion and relatively movable piston part having
abutting inclined surfaces
260 .Welded, brazed or soldered (231)
261 MISCELLANEOUS (E.G., CRANKCASE)
* ******************************
* DIGESTS
* ******************************
DIG 1 Bearing on piston or cylinder
DIG 2 Fluid bearing
DIG 3 Flexible drive
DIG 4 Lost motion