Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Industrial
Class Information
Number: 92
Name: Expansible chamber devices >
Description: (A) This class relates to devices which include an expansible chamber, said chamber having a wall portion thereof (i.e., a working member) movable in a to and fro motion to vary the volume of the chamber, and having a fluid conducting passage means in communication with the chamber for introducing or withdrawing fluid therefrom, said device being the type in which:










Class Number Class Name No. of Patents
92/129

Abutment connection between working member and power transmission element

227
92/107

Annular working member or annular linearly extending chamber therefor

76
92/108

Axially extending hollow stem on working member

77
92/DIG.1

Bearing on piston or cylinder

22
92/34

Bellows type expansible chamber

86
92/35

Expansible chamber formed by concentric bellows

16
92/37

Plural bellows

33
92/38

Non-working liquid moved by first bellows effects movement of second bellows

11
92/39

With common movable wall

17
92/47

Specific or diverse material (103)

31
92/45

Superposed peripherally interconnected elements

23
92/46

With nonmetallic portion

9
92/44

With guide means

30
92/36

With non-bellows type expansible chamber

12
92/40

With separate biasing means

16
92/42

With separate ring-like reinforcing element abutting pleat

33
92/43

With stop means to limit axial movement of bellows

28
92/41

With vibration damping means

8
92/89

Collapsible chamber wall portion (e.g., hinged or flexible wall)

30
92/90

Wall portion formed of flexible material

87
92/93

Annular flexible wall portion peripherally sealed to spaced relatively fixed concentric rigid members

27
92/105

Coaxial radially spaced relatively movable undistortable members joined by flexible wall

23
92/96

Diaphragm type

75
92/97

Axially spaced flexible wall portions with interposed incompressible means

46
92/104

Corrugated

27
92/98R

Entire periphery secured to rigid working chamber forming wall

215
92/101

Abutment connection between diaphragm and power transmission element

51
92/98D

Rolling diaphragm

182
92/102

With separate seal means between diaphragm and member

28
92/99

With undistortable member secured to central portion of diaphragm

194
92/100

Member includes coextensive plate-like elements secured to opposite side of diaphragm

77
92/103R

Specific or diverse material (47)

55
92/103M

Metal diaphragm

51
92/103SD

Synthetic diaphragm (non-metal and non-rubber)

61
92/103F

With reinforcement embedded in diaphragm

61
92/91

Envelope having restricted fluid opening

29
92/92

Non-metallic

172
92/94

With separate biasing means

58
92/95

Adjustable

9
92/145

Combined

6
92/59

Convertible, or changeable by assembly or disassembly

59
92/169.1

Cylinder detail

320
92/171.1

Cylinder or liner retained in casing by casing closure or closure associated means

201
92/170.1

Nonmetallic piston contacting portion

119
92/169.2

With reinforcing member

62
92/169.3

Extending through working member

44
92/169.4

Coaxial sleeve or tube

30
92/12.1

Displacement control of plural cylinders arranged in parallel, radial, or conical relationship with rotary transmission axis

48
92/13.6

Adjustable abutment positioned within working chamber

107
92/13.8

Adjustment means includes external axially extending threaded piston stem

55
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

53
92/12.2

Parallel cylinders

457
92/13

With adjustable means to vary stroke of working member

97
92/13.4

Predetermined discrete incremental adjustment positions

34
92/13.41

Adjustment by assembly or disassembly

38
92/13.3

Stroke of one working member adjustable relative to another

40
92/6R

Effective area of working member end face selectively variable

18
92/6D

With diaphragm

11
92/DIG.3

Flexible drive

1
92/DIG.2

Fluid bearing

30
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

78
92/164

Port in separable chamber end closure

59
92/77

Ground embedded expansible chamber

6
92/58.1

Knockdown or flow conduit storage or retrieval means

25
92/83

Liquid pool sealing relatively movable chamber walls

21
92/DIG.4

Lost motion

16
92/261

Miscellaneous (e.g., crankcase)

39
92/117R

Moving cylinder

60
92/118

Pivoted

56
92/119

With fluid conduit extending through pivoted connection

11
92/117A

Stationary piston or movable piston with moving cylinder

90
92/51

Mutually relatively movable cylinder or sleeve, member sealingly slidable therein and outer cylinder therefor

68
92/52

Cylinder or sleeve forms working member

115
92/53

With additional cylinder relatively slidable exteriorly of outer cylinder

70
92/2

One working member reciprocates and another rotates common output member

51
92/120

Oscillating working member or cylinder therefor

56
92/121

Oscillatory shaft with radially extending vane

76
92/122

Plural angularly related vanes

56
92/125

Vane includes non-metallic peripheral sealing portion

57
92/123

With lost motion connection between vane and shaft

3
92/124

With resiliently biased vane peripheral portion

12
92/86.5

Passage in cylinder for application of separate fluid to cylinder and piston side wall interface

53
92/109

Piston with rigid axially extending hollow stem

26
92/110

Hollow stem forms axially extending fluid passage

115
92/112

Passage communicates with lateral port extending through piston side wall portion

19
92/111

Plural laterally spaced passages

35
92/113

Relatively movable elongated part within stem

49
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

143
92/179

Articulated connecting rod end forms portions of piston face

14
92/247

Fluid pressure responsive axial movement of end face portion radially moves side wall portion

25
92/174

Liquid between axially spaced side wall portions

16
92/177

Non-circular

103
92/248

Nonmetallic portion

175
92/249

Flexible

65
92/253

Axially spaced flexible side wall forming elements with interposed rigid spacer member

23
92/250

Flexible side wall portion between separable axially spaced rigid members

26
92/251

Wall portion comprises plural axially aligned flexible elements

14
92/252

Three or more elements

8
92/254

With imbedded reinforcing means (241)

23
92/208

Open-ended hollow skirt type (e.g., trunk type)

103
92/237

Circumferentially spaced portions at free end of skirt

25
92/238

Connecting rod pin supporting boss laterally spaced from skirt portion

38
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

42
92/209

Frusto conical skirt

11
92/233

Oval-shaped skirt portion

33
92/216

Plural separable parts

53
92/217

Interconnected by relative rotation of parts

10
92/218

With means to prevent relative rotation of parts

10
92/219

Interconnected without separate fastening means

25
92/220

Threaded fastener

44
92/221

Fastener extends through end face

18
92/215

Separate resilient elements secures end face portion to skirt portion

8
92/234

Skirt includes slit

8
92/235

Slit transverse to skirt axis

8
92/236

With additional angularly related slit

2
92/232

Spaced skirt parts jointed by resilient arcuate web

5
92/214

Spaced wall skirt

9
92/222

Specific or diverse material; or welded, brazed or soldered joint

98
92/223

Coated

84
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

19
92/229

Annular element

6
92/230

Element encircles connecting rod pin supporting boss

5
92/227

Element positioned about periphery of skirt

16
92/224

End face and skirt periphery of diverse material

64
92/231

Welded, brazed or soldered (260)

47
92/212

With nonmetallic portion

102
92/239

With rib or strut means on piston part

39
92/210

With weight balancing means

3
92/192

Plural integral radially extending resilient metallic sealing tongues on side wall portion

16
92/255

Plural separable parts

140
92/256

Fastening means for parts include resilient element

43
92/259

Side wall portion and relatively movable piston part having abutting inclined surfaces

6
92/257

Side wall portion interposed between separable axially spaced rigid members

28
92/258

Rigid members connected by coaxial rigid stem or rod

47
92/201

Radially adjustable side wall portion

11
92/202

Adjustable portion comprises open-ended hollow skirt

3
92/203

Adjustment effected by wedge member movable relative to skirt (207)

3
92/204

Adjustment effected by selectively removable spacer or skim element between relatively movable parts

1
92/207

Adjustment effected by wedge member movable relative to side wall portion (203)

12
92/205

Side wall portion positioned between relatively axially adjustable rigid end members

10
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

99
92/245

Lip forms peripheral portion of imperforate cup shaped element

36
92/246

Metallic lip

13
92/242

Plural axially spaced lips

16
92/243

Oppositely facing

22
92/244

Lips formed on separable elements

22
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)

41
92/178

With ball or roller anti-friction means on side wall portion

22
92/176

With enclosed insulating space in piston part

50
92/181R

With fluid passage in piston face

60
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

13
92/183

Valved

25
92/181P

Passage thru piston to opposite chamber

53
92/186

With ported chamber in piston part for circulating heat exchange fluid

128
92/173

With rotation imparting fluid impinging surface on piston part

13
92/187

With separable means for pivotally mounting connecting rod to piston

202
92/191

Fastener for separable means extends through end face portion

6
92/188

Means retained by annulus positioned about piston periphery

18
92/189

Piston formed of separable end face and side wall portion

17
92/190

Means secures end face portion to side wall portion

36
92/193

With spring means for biasing side wall portion radially

35
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

180
92/49

Diaphragm type having working fluid contacting areas of different size

33
92/50

Oppositely movable walls of common chamber (69) (75)

30
92/146

Plural unitarily mounted cylinders or frame therefor (161)

93
92/151

Coaxial cylinders (150)

98
92/152

With different cross-sectional areas

42
92/147

With casing or support for rotary shaft

38
92/150

Coaxial cylinder (151)

18
92/148

Three or more radially arranged cylinders

34
92/149

V-type

5
92/31

Rectilinearly moving working member and coaxial or parallel element slidably interengaged for relative rotary movement

128
92/33

Element extends through working member portion

112
92/32

Working fluid-actuated interengaging means permits unidirectional rotation of element relative to fixed part

19
92/61

Relatively movable working members

48
92/62

First working member moves second coaxial working member through separating abutment surfaces

95
92/63

With separate biasing means for a working member

163
92/76

Interconnected by linkage having relatively movable members

26
92/68

Interconnected with common rotatable shaft

57
92/69R

Oppositely movable walls of common chamber (50) (75)

29
92/69A

One piston rod passes through opposite piston rod

3
92/70

Shaft axis parallel to axes of working members (71)

12
92/69B

Single crankshaft offset from center of work chamber

4
92/72

Shaft axis intersected by axes of working members

178
92/73

Parallel working members

18
92/74

Shaft extends transversely through working members

5
92/71

Shaft axis parallel to axes of working members (70)

585
92/66

Moving cylinders

46
92/64

One a flexible wall type

47
92/75

Oppositely movable walls of common chamber (50) (69)

68
92/67

Oscillating working members

9
92/65

Rigid stem on first working member portion extends through second working member

71
92/84

Resilient means interposed between working member and relatively movable power transmission element

100
92/54

Rotating cylinder

9
92/55

Fluid conduit coaxial with axis of rotation

4
92/56

Plural cylinders

12
92/58

Axes of cylinders intersect axis of rotation at common point

54
92/57

Axes of cylinders parallel to axis of rotation

161
92/88

Sealed opening in longitudinal wall of chamber for receiving working member portion

172
92/60.5

Selective clearance control

56
92/162R

Spaced cylinder and piston walls define passage between opposed piston side wall ends

67
92/162P

Passage in piston

18
92/5R

With (1) signal or indicator or (2) inspection window in expansible chamber wall portion

367
92/5L

With lock

35
92/128

With assembly or disassembly facilitating means

387
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

100
92/85B

Fluid spring

172
92/85A

Metal spring

41
92/139

With cylinder wall contacting guide articulated to piston

9
92/126

With differential radial thrust producing means for working member

16
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

53
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

131
92/78

With fluid purifying means

63
92/79

Means separates gas from liquid

42
92/80

With force exerting means to move fluid from non-working chamber

32
92/165R

With guide or seal on cylinder end portion for piston or member moved by piston

290
92/166

Additional guide is spaced chamber end wall

57
92/167

Guide movable laterally

48
92/168

Non-metallic seal means between piston or member and end portion

317
92/165PR

Prevent rotation

189
92/138

With linkage or transmission engaging portion intermediate spaced working member end faces

103
92/140

With linkage or transmission having relatively movable members

173
92/153

With lubricating means

130
92/154

Lubricant entrained by working fluid

51
92/157

Lubricant passage extends axially through articulated piston rod

55
92/158

Piston has lubricant retaining or conducting means

109
92/159

Pocket or chamber

110
92/160

Port or passage extending through side wall portion

75
92/155

Portion of expansible chamber device includes solid lubricating material

66
92/156

Valve means in lubricant passage

34
92/8

With means to control flow of non-working arresting fluid for working member

20
92/12

Adjustable throttle (11)

16
92/9

Flow control means positioned between chambers having a common wall movable with working member

30
92/10

Work member position control

15
92/11

With auxiliary adjustable throttle (12)

6
92/82

With means to control fluid flow from non-working chamber

76
92/143

With movement damping means (e.g., fluid flow restrictor)

85
92/87

With non-sealing cleaning means

37
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

57
92/15

With releasable stop or latch means to prevent movement of working member

64
92/17

Engages member coaxial with and rotatable relative to working member

46
92/20

Engages power element movable relative to working member

25
92/28

Fluid actuated (27)

64
92/18

Includes interfitting parts engageable at plural positions including position intermediate stroke limits

32
92/19

Self-engaging

33
92/23

Means includes element interfitting between working member and fixed part

109
92/24

Element actuated or retained in operative position by relatively movable fluid responsive member

106
92/26

Resilient element

32
92/25

With pivoted link between element and member

22
92/27

Fluid actuated (28)

103
92/21R

Plural selectively operable actuators for releasable means

6
92/21MR

Manual release

30
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

132
92/142

With reservoir for non-compressible working fluid

27
92/30

With resilient detent

32
92/141

With separable fluid deflecting shield or baffle on working member

4
92/130R

With separate biasing means for working member

112
92/133

Adjustable

21
92/130C

Bias external of both expanding and contracting chamber

59
92/130A

Bias normally held inoperative by fluid pressure

109
92/130B

Bias other than coil spring

44
92/135

Biasing means engages working fluid contacting portion of working member

26
92/131

Biasing means maintains working member intermediate stroke end limits

52
92/134

Fluid spring

76
92/130D

Plural coil springs

54
92/132

Tension spring

20
92/161

With support or frame (146)

148
92/161.5

Wheel supported

3
92/1

With temperature compensation

20
92/136

With toothed gear, spline or thread rigid with working member

222
92/81

Working member forms reservoir for non-compressible working fluid

12
92/14

Working member moves load and latching means for load

25
 
 
  Recently Added Patents
Method and apparatus for compensating QoS during handover by base station in wireless broadband access system
Probe for ultrasound diagnostic apparatus
Macrocyclic cysteine protease inhibitors and compositions thereof
Stacked structure and stacked method for three-dimensional chip
Image forming apparatus capable of timely starting different image formation mode
Radio communication devices, information providers, methods for controlling a radio communication device and methods for controlling an information provider
Process to extract quassinoids
  Randomly Featured Patents
Continuously slitted roll-on tube shield
System and related methods for synthesizing color imagery
Human antibodies to human delta like ligand 4
Surveillance system and method having an adaptive sequential probability fault detection test
Method and apparatus for a verbo-manual gesture interface
Printed circuit board socket
Method of replacing a nut plate fastener assembly
Preparation of intermediates useful in the synthesis of quinoline antibiotics
Protected telephone network interface device
Phosphorous amine lubricant additives