Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Industrial
Class Information
Number: 417
Name: Pumps >
Description: This is the general class for the pumping of fluids, and includes the pumping of slurries, fluent material and the like if handled in a manner not inconsistent with the handling of fluids. With the exception of "gettering pumps" as discussed in Lines With Other Classes and Within This Class, below, a pump is defined as means to move a fluid by taking it from one place or location and moving it to another place or location different from whence it came, the pump, therefore having an inlet and an outlet for the pumped fluid which are separate and distinct.










Class Number Class Name No. of Patents
417/62

Alternate series or parallel operation of plural pumps

59
417/234

Ambulant, body supported, or with carrying handle

371
417/235

Pump driven by traverse movement

7
417/61

Buoyantly supported

54
417/207

By heating of pumped fluid

86
417/208

Vapor generator type

53
417/209

With inlet valve

44
417/238

Changeable by assembly or disassembly

91
417/239

For reverse drive or flow

23
417/313

Combined

537
417/212

Condition responsive control of drive transmission or pump displacement

142
417/218

Adjustable cam or linkage

227
417/222.1

Axial cam

360
417/222.2

With sump pressure actuation

465
417/221

Radial cam or eccentric

110
417/219

Radially adjustable stator

43
417/220

Rotary expansible chamber pump

141
417/215

By changing phasing of plural pistons in single chamber

7
417/223

Disconnectable drive element (e.g., clutch, belt, shifter, etc.)

170
417/213

Having condition responsive pumped fluid control

155
417/214

Having means to hold or resist movement of pumping element

75
417/216

Plural pumps with individual or relative control

119
417/217

Reversible flow pump

37
417/1

Condition responsive control of pump drive motor

50
417/44.1

By control of electric or magnetic drive motor

515
417/45

By changing electrical characteristic of motor or motor circuit

304
417/44.11

Responsive to change in electrical operating characteristic

239
417/44.2

Responsive to pump fluid pressure

301
417/44.7

Bellow-type sensor

4
417/44.6

Dial-type sensor

3
417/44.9

Diaphragm

39
417/44.3

Inlet pressure

34
417/44.4

Low pressure stops motor from turning on pump

16
417/44.5

Mercury switch

2
417/44.8

Piston-type sensor

17
417/46

By controlling drive motor motive fluid

141
417/47

Rotary nonexpansible chamber-type motor

27
417/11

By controlling free piston internal combustion engine

9
417/34

By controlling internal combustion drive engine

94
417/10

By controlling starter motor for internal combustion engine

11
417/35

By controlling wind motor in response to liquid accumulation

7
417/9

By stopping pump in response to leakage into or from system

45
417/14

Having ambient condition responsive means

72
417/12

Having timer or delay means

340
417/42

In response to pump speed

170
417/2

Plural pumps having separate drive motors, supply sources, or delivery destinations

156
417/3

Pumps in parallel flow paths with common inflow or outflow

77
417/4

Having means sensing condition in common inflow or outflow line

34
417/5

With control of plural pump drive motors

72
417/7

Sequential starting or stopping of pumps

46
417/8

Alternating sequences

29
417/6

With additional means sensing condition of one pump or path

15
417/33

Pump stop control means requiring manual reset

27
417/25

Relatively movable elements sensing same system pressure for single control element

8
417/36

Responsive to accumulation of pumped liquid in receiver

227
417/40

By float

174
417/41

Controlling motive fluid or drive motor

44
417/38

By liquid pressure sensor

183
417/37

By movable liquid receptacle

17
417/39

With motive fluid supply communicating with liquid receiver

4
417/43

Responsive to change in rate of pump fluid flow

202
417/13

Responsive to pump lubricant, sealant, or coolant condition

52
417/32

Responsive to pump or pump fluid temperature

259
417/18

Single motor control element responsive to means sensing diverse conditions

264
417/20

One condition is rate of flow to or from pump

103
417/22

One condition is speed of pump

138
417/24

Speed sensor comprises auxiliary pump or electric generator

13
417/23

With common element sensing diverse condition to control motor and pump fluid valve

7
417/21

One is motive fluid condition of fluid drive motor

3
417/19

Sensing both inlet and outlet conditions

60
417/26

With condition responsive control of pump fluid valve

107
417/28

Fluid and motor controls have common sensing element

72
417/29

Fluid and motor controls separately responsive to diverse conditions

19
417/30

Liquid accumulation controlled discharge valve downstream of motor controller sensing means

6
417/31

Motor controller responsive to liquid pressure

3
417/27

Having independent means for delaying valve actuation

26
417/15

With control of pump drive transmission

57
417/17

With plural separate drive motor controlling elements

45
417/16

With plural separate drive motors for single pump unit

45
417/274

Condition responsive variable volumetric capacity expansible chamber pump (i.e., clearance control)

48
417/275

Valved clearance chamber

15
417/276

Connectable clearance chambers of opposed pump chambers

2
417/277

Plural chambers connected to single pump chamber

8
417/236

Convertible to apparatus of a different class

32
417/237

Motor and pump

30
417/316

Correlated pump and motor or clutch control

33
417/317

Pump distributor control

36
417/318

Mechanically interconnected pump and fluid motor distributors

17
417/901

Cryogenic pumps

196
417/199.1

Diverse pumps

84
417/201

Including rotary nonexpansible chamber type

89
417/202

Diverse pump controlled by rotary pump condition

16
417/203

Preceding diverse pump

89
417/204

Moving partition or cylinder of rotary pump forms or actuates reciprocating pump

50
417/199.2

Priming and venting

75
417/200

Priming with liquid level responsive control

29
417/205

Series

143
417/206

Rotary expansible chamber type precedes reciprocating

50
417/56

Drilled well free piston-type pump

41
417/58

Having condition or position responsive control of motive fluid supply

20
417/57

Having condition or position responsive control of pump discharge flow path

14
417/60

Mechanically actuated valve carried by piston

21
417/59

Radially expansible piston portion controls pump and motor chamber intercommunication

7
417/48

Electrical or getter type

214
417/50

Electromagnetic

161
417/51

Getter heating, vaporizing, or regeneration

77
417/49

Ionic with gettering

71
417/437

Expansible chamber type

136
417/472

Bellows-type chamber

116
417/473

Plural bellows

67
417/471

Biasing means effects eduction stroke of abutment driven, pressure producing pumping member

47
417/470

Biasing means effects induction stroke of abutment driven, vacuum producing pumping member

126
417/489

Control by withdrawal or tilting of pump piston relative to cylinder

42
417/485

Delivery to different ports on successive strokes

5
417/479

Distributor formed from integral portion of flexible wall pumping member

154
417/507

Distributor moved by separate fluid responsive surface

55
417/508

Including mechanical actuation

3
417/506

Distributor movement adjustable

19
417/509

Distributor part forms traversed movable pump chamber wall portion

9
417/505

Electrically or magnetically actuated distributor

138
417/474

Elongated flexible chamber wall progressively deformed

296
417/476

Deformation by rolling or sliding engagement member

105
417/477.1

Plural spaced engagement members or member portions

153
417/477.2

Cassette

165
417/477.14

Endless chain or belt

7
417/477.13

Flexible tube without backing member

19
417/477.9

Specific backing member for flexible wall

75
417/477.11

Adjustable backing

68
417/477.12

Specific flexible wall or interposed flexible member

79
417/477.3

Specific rollers or slides structure

90
417/477.8

Adjustable rollers or slides

59
417/477.7

Biased rollers or slides

65
417/477.4

Helical slide

8
417/477.6

Positively driven rollers

35
417/477.5

Roller axes or slide contact surfaces at significant angle with drive axis

28
417/475

Plural chambers

92
417/558

First distributor includes passage controlled by second distributor (i.e., inlet and outlet)

7
417/555.1

Fluid serially moved to opposite side of pumping member

112
417/556

Control by movable rigid piston side wall

6
417/555.2

Well swabs

73
417/439

Having additional chamber intake connection from nonpumping space

42
417/446

Having means for holding pressure responsive distributor open

38
417/540

Having pulsation dampening fluid receiving space

272
417/543

Direct contact with confined compressible fluid

31
417/544

Manually operated pump

17
417/542

Inlet and discharge spaces

53
417/541

Space formed on pumping member

22
417/559

Having pumping chamber pressure responsive distributor

97
417/569

Distributor positioned opposite pumping member end face

237
417/570

Distributor coextensive with pumping member end face

78
417/571

Inlet and discharge distributors

268
417/562

Having means on pumping member for accommodating distributor portion

24
417/565

Hinged inlet and discharge distributors in aligned conduits

13
417/567

Inlet and discharge distributors in coaxial ports

62
417/568

Transverse to axis of pumping member

104
417/566

Nonmetallic inlet or discharge distributor

145
417/561

Pumping member position responsive stop for distributor

3
417/563

Similar inlet and discharge distributors of different size or material

6
417/564

Annular-type distributors

26
417/560

Single unitary element forms inlet and discharge distributor

48
417/440

Having separate noncyclic valve (e.g., bypass, etc.)

373
417/441

For serial control of pump fluid (e.g., throttle valve)

85
417/455

Having valve parts relatively moved for nonvalving function

7
417/454

Including valve assembly, disassembly, or inspection facilitating means

203
417/478

Inlet and discharge distributors at opposite ends of tubular flexible wall pumping chamber

176
417/438

Liquid coolant introduced into gas pump chamber or inlet

16
417/510

Mechanically actuated distributor

73
417/518

Common element forms inlet and discharge distributor

27
417/519

Element moves about axis

82
417/520

Distributor abutted by or frictionally engaged with pumping member

32
417/514

Distributor in piston

27
417/511

Piston carried distributor, one frictionally engages chamber wall, drive rod integral with other (e.g., piston driven by valve element through lost motion connection, etc.)

49
417/513

Conical engagement

13
417/512

Unitary distributor element controls inlet or discharge for plural chambers

13
417/515

Plural pumping chambers

22
417/516

Common element forms inlet or discharge distributor for plural chambers

35
417/517

Element forms both inlet and discharge distributor

68
417/460

Moving cylinder

47
417/469

Cylinder and piston reciprocate on common axis

58
417/464

Cylinder oscillates about axis transverse to longitudinal axis

20
417/465

Inlet or discharge controlled by cooperating ports in cylinder or piston and fixed member

10
417/461

Cylinder rotates or oscillates about longitudinal axis

22
417/468

Having integral pump piston or external pumping face

22
417/466

Inlet or discharge controlled by cooperating port in reciprocating cylinder and fixed member

26
417/467

Relatively movable cylinders

15
417/462

Unidirectionally rotating cylinder

268
417/463

Having second cylinder unitary with piston of first

6
417/503

Multiple cyclic inlet paths

55
417/502

Multiple cyclic outlet paths

29
417/481

Oscillating pumping member

30
417/484

Distributor in pumping member

3
417/482

Inlet distributor in abutment wall for pumping member

8
417/483

Having discharge distributor in pumping member

2
417/504

Plural outlet paths to single discharge line acting under different conditions

10
417/521

Plural pumping chambers

141
417/534

Chambers formed at opposite ends of rectilinearly moving pumping member

153
417/535

All discharge distributors positioned laterally of pumping member path

11
417/536

Inlet and discharge distributors positioned laterally of pumping member path

52
417/537

All distributors positioned on same side of pumping chamber

11
417/533

Common discharge conduit interposed between spaced parallel chambers

46
417/522

Discharge conduit for first chamber communicates with nonpumping portion or second pumping member

9
417/523

Including valved piston

40
417/525

Common piston includes valves for plural axially aligned chambers

13
417/526

Common inlet or discharge conduit mounted on piston

28
417/527

Fluid conduit for one chamber extends through portion of another

15
417/528

Fluid conduit for one chamber extends through portion of another

12
417/530

Including nonvalved piston

9
417/529

Parallel laterally spaced relatively movable pistons

14
417/524

Unitary or interconnected elements form inlet or discharge distributors for plural chambers

13
417/538

Inlet and discharge distributors at adjacent end of aligned chambers

17
417/539

Parallel laterally spaced relatively movable pumping members

138
417/531

Unitary or interconnected elements form inlet or discharge distributors for plural chambers

30
417/532

Unitary element movable about an axis

53
417/486

Plural pumping members in single pump chamber

23
417/487

Coaxial reciprocating pumping members

29
417/488

Form opposite chamber walls

46
417/447

Pressure responsive distributor continuously biased open

7
417/443

Pressure responsive distributor opened responsive to pumping member position

33
417/444

Distributor in piston

25
417/445

Including means to open distributor in fixed chamber wall

5
417/557

Pump chamber in constant communication with inlet or discharge conduit

34
417/448

Pump mounted in vertical tubular flow conduit removable as unit by driving rod manipulation

20
417/449

Removable unit having piston normally fixed in conduit

2
417/450

With latching or anchoring means released by rod movement

11
417/490

Pumping member position controlled port

120
417/491

Common pumping member controls inlet or discharge for plural chambers

15
417/492

Control by movement of pumping member about axis

27
417/500

Control by movement of pumping member about axis

96
417/501

Having coextensive distributor opposite pumping member end face

33
417/499

Having means to effect control at different positions of pumping member stroke

110
417/496

Having serial control of inlet or discharge flow path

5
417/493

Including plural controlled inlet or outlet flow paths

29
417/494

Having means to selectively effect control at different positions of pumping member stroke

59
417/495

Pumping member comprises valved piston

17
417/498

Longitudinally spaced inlet and discharge sidewall ports

32
417/497

Pumping member controlled end wall port

9
417/456

Relatively movable serial distributors

19
417/457

Including distributor formed by moving cylinder or liner

15
417/458

Plural pressure responsive distributors

16
417/459

Located within piston (e.g., valved piston)

4
417/442

Selectively usable plural inlet or outlet distributors for single chamber

64
417/451

Valve element mounted in fixed chamber wall removable with pumping member

5
417/452

By separable engageable connecting elements

4
417/453

Threaded connecting elements

5
417/480

Valve in collapsible wall pumping member

63
417/545

Valved piston

132
417/550

Flexible

88
417/547

Fluid conduit fixed to piston

68
417/548

Having rigidly attached imperforate wall member

5
417/549

Having separate means biasing valve closed

82
417/551

Hinged

20
417/546

Piston contains inlet and outlet valves

19
417/552

Reciprocating

99
417/553

Annular

70
417/554

Ball type

155
417/52

Expansion and contraction of pump fluid

43
417/278

External condition responsive pumped fluid control

33
417/64

Gas pressure exchange using rotary cellular conveyor

67
417/902

Hermetically sealed motor pump unit

413
417/432

Including application of separate fluid to pump valve

10
417/433

Liquid pool seal for gas pump valve

2
417/319

Including disengageable rotary or frangible drive connection

143
417/430

Including means to (1) agitate pump fluid, or (2) prevent foreign material settling from pump fluid

59
417/431

By application of separate fluid

25
417/434

Including separate port on noncyclic valve for draining pump portion

38
417/435

Including separate port on noncyclic valve for venting or filling pump portion

124
417/240

Inertia liquid piston (e.g., momentum, etc.)

30
417/241

Movable confining means

16
417/211

Inertia-type pumping member or drive means

43
417/225

Intensifier

56
417/226

Ram type

19
417/227

Multiple drive pipe

2
417/211.5

Liquid level responsive control of displacement, volumetric capacity, or drive transmission

14
417/DIG.1

Materials digest

76
417/572

Miscellaneous

174
417/321

Motor driven

65
417/359

Adjustable motor and pump rotor unit or relatively adjustable aligned pump and motor rotary shafts

46
417/365

Axial thrust balancing means for rotary pump and motor

139
417/337

Buoyant motor

26
417/349

Common pump and motor chamber

26
417/348

Common rotary pumping and fluid motor working member

15
417/410.1

Electric or magnetic motor

345
417/412

Collapsible wall pump

118
417/413.1

Diaphragm type

389
417/413.3

Of semiconductor material (e.g., silicon, germanium, etc.)

73
417/413.2

Piezoelectric driven

177
417/410.2

Having piezoelectric driven blade

31
417/411

Including electric power generating or storage means

151
417/414

Internal - external pressure balancer

53
417/420

Pump magnetically coupled to rotary drive

375
417/415

Reciprocating rigid pumping member

481
417/416

Reciprocating motor

124
417/417

Unitary pump and motor working member

460
417/418

Opposed pumping member faces (e.g., double acting)

113
417/419

Relatively movable pumping members

41
417/410.3

Rotary expansible chamber pump

205
417/410.5

Helical pumping member having planetary movement (e.g., scroll)

188
417/410.4

Interengaging rotary pumping members

142
417/423.1

Rotary motor and rotary nonexpansible chamber pump

392
417/423.8

Having additional means to remove heat from pump or motor

202
417/423.12

Having bearing

352
417/423.13

With lubricator

85
417/423.15

Having means to mount pump and motor in working position

270
417/423.9

Having means to prevent debris from entering pump

113
417/423.11

Having means to prevent fluid leaking between pump and motor

151
417/423.6

Having nonflexible means to transmit power between motor shaft and pump shaft

69
417/423.5

Plural units

140
417/423.3

Submersible type

350
417/424.1

Supported for rotation on vertical axis

153
417/424.2

Motor mounted below pump

52
417/423.4

Turbomolecular pump

176
417/423.2

Vacuum cleaner

61
417/423.14

With specific housing details

654
417/423.7

With specific motor details

424
417/422

Sealed service conduit

59
417/421

Trapped air motor seal (i.e., diving bell type)

9
417/334

Fluid current motor

75
417/335

Including alternate drive

3
417/336

Rotary parallel axis type

13
417/375

Fluid motor

70
417/392

Common pumping and motor working member

108
417/394

Collapsible common member

135
417/395

Diaphragm

378
417/393

With additional unitary common pumping and motor working member

171
417/391

Motor discharge into or upstream of pumping chamber

24
417/398

Rectilinearly reciprocating cylinder and piston-type motor

23
417/399

Rectilinearly reciprocating cylinder and piston-type pump

77
417/401

Integral pump and motor pistons

155
417/402

Constantly applied force in education stroke direction

34
417/403

Double acting motor piston

173
417/404

Double acting pump piston

101
417/400

Interconnected moving cylinder and piston

32
417/396

Rectilinearly reciprocating motor working members coaxial with intermediate unitary pumping member

20
417/397

Rectilinearly reciprocating pumping members coaxial with intermediate unitary motor working member

78
417/405

Rotary motor

94
417/406

Unitary pump and motor rotors

102
417/409

Axial flow motor and centrifugal pump

43
417/408

Axial flow motor and pump

33
417/407

Overhung from central support

300
417/377

Serial flow fluid from pumping chamber through motor working chamber

23
417/378

Pulsator type

19
417/376

Steam motor discharge into pump fluid

2
417/379

With motive fluid generator

125
417/381

Combustion products generator for motor

20
417/390

Fluid pump

139
417/380

Internal-combustion engine

91
417/382

Plural pumping members; one additionally supplying motive fluid for second

13
417/383

Pulsator or fluid link

136
417/389

Plural collapsible walls

40
417/384

Pneumatic

44
417/385

With means to supply or vent pulsator fluid

53
417/388

Pressure responsive

84
417/387

Pulse piston position responsive

45
417/386

Working member position responsive

42
417/374

Including manual, mechanical, or diverse drive

128
417/360

Including means for facilitating assembly or disassembly of pump to or from motor or fixed support

676
417/326

Including means for selectively varying motor speed or rotary motor direction

85
417/366

Including means utilizing pump fluid for augmenting cooling, lubricating, sealing, or cleaning of motor

484
417/367

Heat exchange means between pump fluid and secondary motor contacting fluid

43
417/368

Including additional means for motivating fluid flow to or from motor (e.g., auxiliary pump, pump fluid induced flow path, etc.)

185
417/369

Pump fluid directed to motor via downstream branched flow path

85
417/370

Recirculated through pump

79
417/371

Pump fluid flows serially from motor through pump

114
417/364

Internal-combustion engine

256
417/372

Interrelated or common lubricating or cooling means for pump and motor

220
417/322

Magnetostrictive chamber

147
417/350

Motor rotor intermediate coaxial pump rotors

63
417/352

Motor within rotary pumping member

25
417/353

Armature within pumping member

64
417/354

Stator within armature

144
417/358

Pump - motor unit raised in vertical conduit by pressure fluid applied below unit

3
417/362

Pump and motor interconnected by endless flexible transmission element

150
417/361

Pump and motor unitarily adjustable relative to fixed support

69
417/357

Pump fluid communicates with sealed chamber containing armature

37
417/323

Pump motor or starter driven by pump fluid

15
417/324

Pump operated as motor to start prime mover drive

11
417/351

Pump rotor intermediate coaxial motor rotors

4
417/355

Pump within rotary working member

35
417/356

Pump within armature

180
417/327

Reaction motor

2
417/338

Relatively movable pumping members driven by relatively movable working members

18
417/339

Nonrotary pumping and fluid motor working members

30
417/340

Common expansible chamber for oppositely movable working members

9
417/341

Mechanically interconnected

8
417/342

Including closed fluid interconnection between working members

49
417/343

Including mechanical interconnection to cause relative motion

27
417/344

Position of one working member controls motive fluid valve for another

21
417/345

Control by single member responsive to position of each of plural working members

18
417/346

Independently operated valve for each working member

21
417/347

Single member controls motive fluid for each working member

33
417/363

Resiliently mounted pump or motor

307
417/325

Reversely rotated for starting

9
417/328

Spring or weight motor

54
417/329

Fluid weight (e.g., gravity vessel)

18
417/330

Tide or wave motor

92
417/331

Float

103
417/333

Guided

54
417/332

Pivoted

65
417/373

With means to prevent heat transfer between pump and motor

75
417/65

One fluid pumped by contact or entrainment with another

45
417/108

Aerated column

41
417/109

Valved gas inlet

27
417/116

Controlled by means responsive to liquid level accumulation in column

5
417/111

Plural serially actuated valves

7
417/117

Valve biased open by static pressure of pumped fluid

3
417/115

Valve member actuated responsive to absolute gaseous motive fluid pressure or flow rate

8
417/112

With flexible pressure responsive sensing element (i.e., bellows, diaphragm, etc.)

7
417/113

Sensing element controls pilot valve

5
417/114

With pilot valve

0
417/110

With pumped fluid velocity or flow responsive valve operating means

5
417/105

By condensation of motive fluid

1
417/106

Plural alternating pumps

1
417/107

With condition responsive control means

1
417/73

By ignition of motive fluid

5
417/75

With fluid momentum utilizing means

1
417/74

With pumped fluid condition responsive ignition means

1
417/66

Contact or entrainment within rotary impeller

11
417/71

Axial inlet for pumped fluid

6
417/72

Peripheral pumped fluid outlet

2
417/68

Liquid ring

137
417/69

With diverse pump

39
417/67

Passage in impeller shaft for pumped or motive fluid

11
417/70

Peripheral motive fluid inlet

6
417/85

Diverse pumps

18
417/90

Including aerated column

18
417/91

Diverse pump motor exhaust is aeration fluid

5
417/87

Including jet pump

86
417/88

Diverse pump motor exhaust is jet motive fluid

20
417/89

With rotary nonexpansible chamber type

51
417/86

Including pneumatic displacement

23
417/150

Gravity flow motive fluid

7
417/76

Jet pump with motive fluid generating pump

62
417/78

Entrainment at exit of impeller

6
417/79

Jet delivers back to generating pump

30
417/80

Rotary nonexpansible chamber-type generating pump

33
417/82

Changeable jet location (e.g., deep or shallow well)

0
417/83

Jet within rotary pump casing

16
417/81

Multiple-stage rotary pump

0
417/77

Recirculation of separated motive fluid

36
417/84

Rotary nonexpansible chamber-type generating pump

26
417/151

Jet

165
417/177

Annular motive fluid stream entrains pumped fluid outside and inside

12
417/160

Cleaning by separate fluid or diverted motive fluid

9
417/172

Concentric reverse flow motive fluid and discharge conduits

52
417/196

Expressed mathematically or dimensionally

54
417/181

Faucet or flexible hose attached

26
417/155

Flue type

5
417/157

Regulation

3
417/156

With spark arrester

0
417/162

Interrelated overflow and motive fluid valves

1
417/176

Parallel entrainments with separate combining tubes

24
417/197

Peripheral motive fluid supply

66
417/179

Plural motive fluid jets or sources for single entrainment

53
417/180

Individual or relative control

8
417/161

Radial disc-type motive fluid jet

4
417/182

Regulation

37
417/186

By bypassing motive fluid from nozzle

21
417/187

By controlling motive fluid

80
417/188

Interrelated with pumped fluid control

13
417/189

Pressure controlled

43
417/183

By position of nozzle relative to combining tube

30
417/184

Pressure controlled

9
417/182.5

Liquid level responsive

16
417/192

Pressure controlled overflow

6
417/193

By movable conduit or conduit wall (e.g., combining tube)

3
417/190

Pumped fluid inlet valve

19
417/191

Pressure controlled

20
417/185

With main line downstream control

19
417/178

Selectively usable flow confining members (e.g., nozzles, combining tubes, etc.)

24
417/195

Specific material

22
417/198

Specific motive fluid nozzle

120
417/174

Successive entrainment of pumped fluid

52
417/163

Successive introduction of motive fluid

22
417/167

Central and peripheral motive fluid supply

13
417/170

In-line motive fluid flows

10
417/165

Individually controlled motive fluid flows

4
417/166

Sequential

4
417/169

Laterally spaced parallel motive fluid flows

15
417/168

One motive fluid flow surrounds nozzle tube of another

6
417/164

With interstage cooling

2
417/171

Tangential motive fluid supply (i.e., vortex type)

38
417/152

Vapor condensation vacuum diffusion type

16
417/154

Vertical stack from generator with reverse flow nozzle

15
417/153

With cooling or heat insulation means

12
417/173

With cooling

13
417/194

With means to whirl pumped fluid

26
417/158

With motive fluid generator

26
417/159

Internal-combustion engine motive fluid source

15
417/175

With priming or overflow removal jet

0
417/92

Liquid piston

34
417/99

Mercury piston

3
417/104

Momentum piston

6
417/93

Moving contracting chamber

2
417/94

Helical chamber

2
417/96

Liquid supporting chambers move liquid to pump fluid

1
417/95

Movement of chamber cyclically controls flow of liquid into chamber for cyclic operation

0
417/98

Reciprocating

6
417/97

Relatively movable chambers

3
417/101

Piston level responsive control for cyclic operation

5
417/102

Plural chambers

12
417/103

Plural chambers

23
417/100

Tide or wave

27
417/118

Liquid pumped by supplying or exhausting gaseous motive fluid to or from pumping chamber

83
417/122

Alternate pumping from plural pumping chambers

22
417/123

Motive fluid in one chamber controlled by condition in second chamber

5
417/125

Responsive to liquid level of pumped fluid

18
417/124

Responsive to weight of pumped fluid

1
417/137

Cyclic pumping

27
417/139

Control by condition of pumped fluid

8
417/140

Movable pumping chamber

6
417/141

Responsive to flow of pumped fluid

6
417/142

Responsive to pumped fluid pressure

5
417/138

Control by liquid level sensing means

47
417/144

Correlated motive fluid valve and pressure or vacuum generating means

7
417/145

Correlated supply - exhaust of motive fluid or vacuum generating means

11
417/147

Unitary supply - exhaust valve

13
417/146

With pilot valve

3
417/143

Motive fluid supply or exhaust valve responsive to motive fluid pressure

19
417/119

Motive fluid pumped by contact with a liquid

4
417/121

Serially connected pumping chambers

21
417/120

With condition responsive control of motive fluid vacuum or pressure generating means

29
417/126

With float actuated control means

28
417/130

Control of motive fluid inlet (e.g., atmosphere, etc.)

12
417/131

With control of motive fluid outlet

44
417/132

With control of pumped fluid outlet

16
417/133

With overcenter valve actuator means

31
417/134

Control of motive fluid outlet

18
417/136

With control of pumped fluid inlet

8
417/135

With control of pumped fluid outlet

8
417/127

Plural floats in single pumping chamber

8
417/129

With intermediate electrical actuating means

9
417/128

With intermediate pilot valve

15
417/148

With vacuum generator

25
417/149

With pressure generator

22
417/229

Operated by art device

39
417/230

Chair

1
417/231

Vehicle mounted or attached

46
417/232

Scoop type

0
417/233

Wheel or axle

44
417/426

Plural pumps with individual or relative control

140
417/429

Adjustment with respect to common drive

77
417/428

Bypass control

47
417/427

Distributor adjustment

33
417/242

Position responsive bypass between plural pump chambers

8
417/53

Processes

1206
417/54

Of pumping one fluid by contact or entrainment with another

138
417/55

Specific motive fluid

21
417/210

Pump fluid biased overcenter load equalizer

4
417/315

Reverse flow with unidirectional drive or unidirectional flow with reverse drive

57
417/425

Separate manual and power driven pumping members

7
417/320

Serially formed pumping chambers (e.g., endless)

20
417/314

Single acting changeable to or from double acting

5
417/900

Slurry pumps (e.g., concrete)

258
417/244

Successive stages

188
417/253

Condition responsive control of fluid

63
417/245

Fluid motor for one stage supplied from another stage

32
417/248

Parallel stages to or from single stage

31
417/249

Prior stage delivers to atmospheric chamber

6
417/254

Reciprocating rigid stages

75
417/255

Crankcase forms stage or interstage flow path

17
417/259

Including valved piston

54
417/264

Fluid motor driven

17
417/260

Piston forms or carries inlet and outlet valve for one stage

9
417/261

Serial interstage distributors in piston

4
417/262

Valve in piston is first stage inlet valve

15
417/263

With additional pumping member in parallel flow path

2
417/258

Reciprocating cylinder and piston

16
417/265

Relatively movable

44
417/267

Series double acting

26
417/256

Stages comprise oppositely moving valved pumping members

4
417/257

Aligned

4
417/266

Three or more

53
417/268

Unidirectionally acting rigidly connected pumping members

11
417/246

Stages driven by relatively movable motor working members

24
417/247

Rotary

42
417/251

With interstage discharge or additional discharge from former stage

81
417/252

Pressure responsive interstage discharge

65
417/250

With interstage intake or additional inlet to latter stage

57
417/269

Three or more cylinders arranged in parallel, radial, or conical relationship with rotary transmission axis

994
417/270

Condition responsive fluid control

226
417/272

Continuous unidirectional fluid bias on reciprocating member

5
417/271

Motor driven

119
417/273

Radial cylinders

350
417/436

Transversely movable impelling member (e.g., paddle)

27
417/903

Treadle operated

14
417/904

Well pump driven by fluid motor mounted above ground

48
417/228

With condition responsive control of coolant or lubricant

103
417/279

With condition responsive pumped fluid control

102
417/284

Bypass or relief valve carried by movable pumping member

25
417/283

Bypass or relief valve controls venting by movable pump chamber part

56
417/296

Bypass or relief valve part carried by or carries distributor part

44
417/293

Driven pump part speed responsive

34
417/294

Centrifugally actuated

29
417/297

Expansible chamber pump distributor operation modified

71
417/298

Inlet valve

112
417/297.5

Liquid level responsive

9
417/300

Fluid flow rate responsive

121
417/290

Having timer or delay means for fluid controller

44
417/301

Inlet pressure increase opens bypass from pump inlet to discharge

12
417/295

Inlet throttle or stop valve

305
417/281

Lubricant condition responsive

22
417/305

Manual actuation of condition responsive valve

20
417/299

Normally open bypass or relief passage closed by increased pressure or flow

141
417/302

Plural paths having individual condition responsive control means

63
417/304

Plural bypass or relief paths

65
417/303

Sequentially opened main line and bypass or relief paths

13
417/286

Plural pump units with individual or relative control

135
417/287

Diverse capacity pumps

57
417/288

Sequentially operated separate relief or bypass passages

40
417/282

Plural separate sensing means for a single fluid controller

76
417/307

Pressure responsive relief or bypass valve

268
417/311

Adjustable spring loaded valve

54
417/308

Having additional relief or bypass valve

99
417/309

Responsive to pump inlet condition

55
417/310

Rotary expansible chamber pump

614
417/306

Pump inlet or pump chamber vented to ambient (e.g., vacuum breaker)

41
417/292

Pumped fluid temperature responsive

86
417/280

Responsive to pump created drive motor condition

40
417/291

Reversibly driven pump having bypass active in either flow direction

14
417/285

Valve passage directly connecting concurrently contracting and expanding nonrotary pump chambers

4
417/289

Variable cutoff or pumping member controlled port

49
417/243

With intercooler

116
417/312

With muffler acting on pump fluid

517
417/63

With signal, indicator, or inspection means

610
 
 
  Recently Added Patents
Polyureas made from aminocrotonates and enaminones
Input system including position-detecting device
Vehicle motion control device
Method and apparatus for charging a power pack of a portable electronic device
Solid-state imaging apparatus
Image processing apparatus, image registering method, program causing computer to execute image registering method, and recording medium in which program is recorded
Methods and systems for automated backups and recovery on multi-os platforms using controller-based snapshots
  Randomly Featured Patents
Vertical cavity surface emitting laser device having an extended cavity
Autoretracting box-cutting knife
System and method of securing web applications across an enterprise
Method and apparatus for detecting a misaligned conveyor
Characterizing a texture of an image
Method for patterning nanowires on substrate using novel sacrificial layer material
Stapler for endoscopes
Grid for nuclear fuel assembly
Method for broad spectrum drug detection
Lidless socket and method of making same