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Class Information
Number: 137
Name: Fluid handling >
Description: This is the residual class for fluid material handling, and takes processes, systems, combinations, subcombinations and certain elements pertaining thereto not otherwise classified.










Class Number Class Name No. of Patents
137/78.1

Ambient condition change responsive

34
137/78.5

Atmospheric

25
137/81.1

Pressure

69
137/79

Temperature

203
137/80

With additional diverse control

70
137/78.4

Burner gas cutoff

26
137/78.2

For controlling soil irrigation

76
137/78.3

Soil moisture sensing

165
137/81.2

Underwater

55
137/215

Back flow prevention by vacuum breaking (e.g., anti-siphon devices)

18
137/216

Air vent in liquid flow line

104
137/217

Valved

62
137/218

With co-acting valve in liquid flow path

248
137/216.1

With liquid seal in liquid flow line

18
137/216.2

Automatic valve in vent line

13
137/901

Biased ball valves with operators

120
137/900

Bumpless manual to automatic relays

1
137/560

Combined

116
137/65

Combustion failure responsive fuel safety cut-off for burners

25
137/66

Thermo-electric

87
137/38

Control by change of position or inertia of system

241
137/45

By pendulum or swinging member

66
137/46

With servo connection to valve

12
137/44

By shifting of liquid level

22
137/40

Position relative body of water (e.g., marine governors)

1
137/41

Float controlled

6
137/42

Pressure or head controlled

7
137/43

Vent opening or closing on tipping container

359
137/39

With second control

142
137/269

Convertible

359
137/269.5

Reversible check

34
137/270

Unit orientable in a single location between plural positions

247
137/270.5

Reversible stop and vent or waste

3
137/271

Units interchangeable between alternate locations

257
137/904

Cushion check valves

25
137/910

Destructible or deformable element constructed of specific material

61
137/67

Destructible or deformable element controlled

124
137/68.11

Destructible element

134
137/68.12

Combined destructible and fusible element

22
137/68.13

Explosive actuation

138
137/70

Frangible element returns pressure responsive valve

89
137/71

Having pressure responsive valve

148
137/68.19

Rupture disc

88
137/68.23

Direct pressure causes disc to burst

135
137/68.25

Dome shape

51
137/68.26

Reverse buckling

71
137/68.24

Two-way rupture disc

20
137/68.22

Disc burst after destruction of additional element

31
137/68.28

Integral disc assembly

41
137/68.29

Knife or cutter causes disc to break

55
137/68.3

Movable knife or cutter

71
137/68.21

Means for holding entire disc after rupture

32
137/68.27

Specific weakening point

100
137/68.14

Separable valve coupling or conduit

134
137/68.15

Tensile or sheer pin or bolt

50
137/68.16

Tensile or sheer pin or bolt

24
137/68.17

Pressure causes pin or bolt to destruct

18
137/68.18

With alarm or indicator

35
137/69

With counterbalancing element

29
137/72

Heat destructible or fusible

175
137/74

In fluid flow path

152
137/75

Safety cut-off

145
137/77

With external closing means

49
137/76

With heater for destructible or fusible element

18
137/73

With second sensing means

54
137/236.1

Distribution systems involving geographic features

248
137/154

Diverse fluid containing pressure systems

41
137/171

Fluid separating traps or vents

67
137/197

Discriminating outlet for gas

57
137/199

Fluid sensing valve

56
137/202

Float responsive

499
137/200

With vaporized liquid stop

4
137/201

With separate return for condensate

5
137/198

With reverse flow stop or pressure regulating valve

22
137/177

Discriminating outlet for liquid

47
137/178

With alternately operated inlet and outlet valves

4
137/182

With auxiliary inlet or by-pass valve

12
137/183

With fluid responsive valve

43
137/185

Gas collecting float (e.g., inverted bucket)

20
137/186

Downstream from valve

2
137/187

Level responsive

22
137/192

Float

105
137/195

Servo-control

31
137/193

With main line gas outlet from trap chamber

3
137/194

With outlet extending above liquid in trap

7
137/196

With pressure balanced outlet valve

7
137/188

Weight or pressure

10
137/189

Gravitating vessel

2
137/190

Sinking or bucket type float

3
137/191

Servo-control

1
137/184

Successively opened valves

7
137/179

With non-discriminating gas vent or liquid discharge

14
137/180

Abnormal pressure responsive liquid blow-off or drain

2
137/181

Manual control

14
137/172

Liquids separated from liquid

77
137/173

Plural discriminating outlets for diverse fluids

18
137/175

Choke or restricted passage gas bleed

6
137/176

From above liquid level

7
137/174

Common actuator for control valves

11
137/203

With liquid emptying means

36
137/204

Self-emptying

63
137/170.1

Foam control in gas charged liquids

19
137/170.2

Level or pressure responsive

7
137/170.3

Separate handling of foam

4
137/170.4

With conditioning trap or chamber

2
137/170.5

Recarbonation

0
137/170.6

With trap or chamber by-pass

1
137/155

Gas lift valves for wells

66
137/156

Gas pressure discharge of liquids feed traps (e.g., to boiler)

4
137/159

Gas pressure controlled by amount of liquid in trap

0
137/165

Float responsive

4
137/167

Gas condensing type

2
137/168

Gas inlet and outlet valves unitary

0
137/166

Liquid control valve positively actuated

1
137/162

Gravitating vessel

0
137/164

Pivoted vessel with fluid passage through pivot

0
137/163

Sinking or bucket type float

1
137/160

Plural trap chambers

0
137/161

Gravitating

0
137/157

Gas pressure controlled by amount of liquids in boiler or discharge receiver

1
137/158

Pressure connection at liquid level in boiler or discharge receiver

3
137/169

Gas pressure controlled by manual or cyclic means

1
137/170

Movable trap chamber

1
137/206

Gas pressure storage over or displacement of liquid

53
137/208

Plural units

47
137/207

Surge suppression

72
137/209

With gas maintenance or application

254
137/210

Gas carried by or evolved from liquid

45
137/211

Gas injectors

10
137/211.5

Gas injected by liquid pressure or flow

7
137/212

Unitary mounting for gas pressure inlet and liquid outlet

126
137/213

With liquid level responsive gas vent or whistle

4
137/214

Combined high and low level responsive

4
137/207.5

With return of liquid to supply

8
137/205

Liquid filling by evacuating container

262
137/205.5

Main line flow displaces additive from shunt reservoir

61
137/801

Faucets and spouts

510
137/803

Flow affected by fluid contact, energy field or coanda effect (e.g., pure fluid device or system)

49
137/842

Device including linearly-aligned power stream emitter and power stream collector

43
137/841

Device including passages having v over gamma configuration

13
137/834

Device including passages having v over t configuration

14
137/839

And enlarged interaction chamber

8
137/835

And feedback passage(s) or path(s)

65
137/838

And multiple or joined power-outlet passages

6
137/840

And vent passage(s)

25
137/836

With particular characteristics of control input

19
137/837

Multiple control-input passages

10
137/808

Means to cause rotational flow of fluid (e.g., vortex generator)

55
137/812

By tangential input to axial output (e.g., vortex amplifier)

64
137/813

With means to vary input or output of device

61
137/809

Plural vortex generators

41
137/810

Vortex generator as control for system

87
137/811

Vortex generator in interaction chamber of device

50
137/825

Means to regulate or vary operation of device

45
137/829

By movable element

59
137/831

Electrically-actuated element (e.g., electro-mechanical transducer)

72
137/832

Means (e.g., valve) in control input

30
137/830

Operating at timed intervals (e.g., to produce pulses)

10
137/827

By non-fluid energy field affecting input (e.g., transducer)

105
137/828

Acoustical or thermal energy

136
137/826

To vary frequency of pulses or oscillations

68
137/822

Plural power inputs to single device

11
137/823

Intersecting at interaction region (e.g., comparator)

7
137/824

Co-lineal, oppositely-directed power inputs (e.g., impact modulator)

12
137/804

Responsive to condition external of system

34
137/805

And causing change or correction of sensed condition

31
137/833

Structure of body of device

243
137/814

System comprising plural fluidic devices or stages

33
137/815

Plural power inputs (e.g., parallel inputs)

8
137/819

To cascaded plural devices

21
137/820

With feedback passage(s) between devices of cascade

13
137/821

With pulsed control-input signal

8
137/816

Variable or different-value power inputs

3
137/817

Pulsating power input and continuous-flow power input

0
137/818

With variable or selectable source of control-input signal

8
137/806

Utilizing diverse fluids

80
137/807

Utilizing particular fluid

79
137/797

Frangible

98
137/59

Freeze condition responsive safety systems

90
137/62

Low temperature responsive drains

103
137/61

Stop and waste

12
137/60

With freeze waste

22
137/15.1

Highspeed fluid intake means (e.g., jet engine intake)

173
137/15.2

With condition responsive control means

46
137/272

Hydrant type

47
137/289

Balanced valve

2
137/281

Expansible chamber operated by valve actuator for draining riser

15
137/286

Movable riser actuated valve

2
137/287

Reciprocating riser

4
137/288

Piston type valve

5
137/280

Plural riser

0
137/301

Protection against freezing

66
137/302

Stop and waste

18
137/307

Reciprocating relatively fixed valves

20
137/308

Waste through lower valve guide

0
137/304

Separate relatively movable valves with single actuator

3
137/305

Unidirectional abutting connection between main valve or actuator and waste valve

4
137/306

With screw or gear in actuating mechanism

0
137/303

With disabling means

0
137/283

Removable valve and valve seat

13
137/284

With extension to facilitate removal

0
137/285

Removable valve with supplemental check valve

4
137/290

Valve actuator extends laterally from bottom of riser

0
137/291

Valve actuator outside riser

8
137/292

Lever actuator

9
137/293

With casing, flush with ground or pavement surface

3
137/273

Water crane type

0
137/278

Extensible spout

1
137/275

Rotating riser

0
137/276

Spout articulated to riser

0
137/277

Vertically movable riser

0
137/279

Spout articulated to riser

1
137/274

Spout operated valve

2
137/298

With actuator lubricating means

5
137/294

With casing

12
137/296

Cap, cover or hood

86
137/295

Flush with ground or pavement surface

7
137/297

With heater

8
137/282

With pump or ejector

12
137/300

With supplemental valve

11
137/299

With valve at outlet

17
137/223

Inflatable article (e.g., tire filling chuck and/or stem)

308
137/234.5

Removable valve head and seat unit (valve insides)

34
137/230

Stem attached relief valve

26
137/232

With cap

60
137/233

Valve actuating, assembling or locking means on cap

20
137/234

Valve manually seated

6
137/231

With coupling means

107
137/227

With gauge or indicator

85
137/229

Selectively connected

10
137/228

With deflating means

34
137/224

With pressure-responsive pressure-control means

115
137/226

Co-axial inflation and relief valves

50
137/225

Diaphragm, bellows or expansible tube

34
137/224.5

Pulsating

5
137/219

Larner-johnson type valves; i.e., telescoping internal valve in expanded flow line section

98
137/221

Internal servo-motor with internal pilot valve

10
137/222

Pilot controlled passage in nose or needle

4
137/220

Line condition change responsive

52
137/455

Line condition change responsive valves

38
137/493

Bi-directional flow valves

188
137/493.9

Axes of ports co-axial

195
137/493.8

Axes of ports parallel

145
137/493.7

Axes of ports perpendicular

34
137/493.1

One head and seat carried by head of another

33
137/493.6

Both valves spring biased

76
137/493.2

Supporting valve only spring biased

40
137/493.3

Supporting valve spring carried by supporting valve

61
137/493.5

Spring abuts guide for supported valve stem

17
137/493.4

Spring stop on supported valve stem

29
137/479

Combustion engine induction type

4
137/484

Unbalanced pivoted valve (e.g., unbalanced butterfly type)

1
137/480

Valve in auxiliary inlet to induction line

20
137/481

With manual modifier

1
137/483

With separate reactor surface

2
137/482

With suction compensator

2
137/467.5

Consistency responsive

19
137/511

Direct response valves (i.e., check valve type)

51
137/517

Biased open

257
137/518

Oppositely swinging vanes

9
137/521

Pivoted valves

70
137/519

Weight biased

44
137/519.5

Ball valves

93
137/520

Edge pivoted valve

8
137/515

In couplings for coaxial conduits, e.g., drill pipe check valves

60
137/515.7

Valve seat clamped between coupling elements

86
137/515.5

Valve seat formed on or carried by a coupling element

90
137/515.3

Valve seat threaded into a coupling element

7
137/527

Pivoted valves

305
137/527.2

Head retained by removable closure

33
137/527.4

Valve head movably connected for accommodation to seat

70
137/527.6

Valve mounted on end of pipe

71
137/527.8

Weight biased

268
137/516.25

Plural seating

72
137/516.27

Sequential

70
137/516.29

Resilient gasket

126
137/512

Plural

251
137/512.3

Diverse types

152
137/512.1

Dividing and recombining in a single flow path

289
137/512.15

Integral resilient member forms plural valves

242
137/512.4

Integral resilient member forms plural valves

141
137/513

Mechanically interconnected

38
137/512.2

One valve carries head and seat for second valve

85
137/512.5

With common biasing means

53
137/528

Reciprocating valves

101
137/530

Cam means for adjusting and fixing bias

31
137/529

Plural biasing means

167
137/535

Spring biased

72
137/539

Ball valves

184
137/539.5

With follower

77
137/538

Piston-type valves

160
137/540

Spring coaxial with valve

286
137/540.11

Broken valve parts retainer

1
137/543.19

Cage-type guide for stemless valves

94
137/543.21

Guide means integral and coplanar with valve disk

67
137/543.23

Head between spring and guide

79
137/543.15

Head slides on guide-rod concentric with spring

72
137/543.13

Spring abuts removable valve stem guide

57
137/543.17

Spring guides valve head

84
137/541

Spring in inlet

119
137/542

Valve stem extends through fixed spring abutment

132
137/543

Yoke or cage-type support for valve stem

52
137/537

Spring under tension

29
137/536

With means to protect spring from fluid

66
137/531

Varying effective lever arm

8
137/532

Weight biased

12
137/533

Valve body is the weight

42
137/533.11

Ball valves

172
137/533.13

Removable cage

34
137/533.15

Separable seat

48
137/533.17

Guided head

66
137/533.19

Cage

45
137/533.21

Guide stem

41
137/533.31

Guide and closure integral unit

46
137/533.29

Guide and seat integral unit

17
137/533.27

Head slidable on guide rod

34
137/533.25

Oppositely disposed

27
137/533.23

With closing stop

7
137/534

Weight coaxial with valve

23
137/843

Resilient material valve

187
137/860

Annulus

87
137/851

Center flexing strip

19
137/844

Having expansible port

63
137/845

Apertured plate

56
137/846

Having exit lip

191
137/850

Internally extending mount

30
137/849

Multiple slit

90
137/848

Side vent

20
137/847

With biasing means

42
137/852

With valve member flexing about securement

98
137/854

Central mount

262
137/855

Flap or reed

298
137/857

With spring

56
137/856

With stop

183
137/858

With weight

9
137/859

Peripherally secured diaphragm

220
137/853

Sleeve

135
137/516.11

Single head, plural ports in parallel

44
137/516.15

Annular head

52
137/516.17

Central post on seat

19
137/516.23

Guide

15
137/516.19

Stop

8
137/516.21

With guide

26
137/516.13

Concentric ports

38
137/526

Vacuum relief type

140
137/524

With bias adjustment indicator

26
137/522

With external means for opposing bias

157
137/523

With means for retaining external means in bias opposing position

68
137/513.3

With leak passage

155
137/513.7

Bypass in valve casing

72
137/513.5

Permits flow at valve interface

134
137/516

With means for selecting area of valve or seat

4
137/514

With retarder or dashpot

148
137/514.3

End of valve forms dashpot chamber

46
137/514.5

End of valve moves inside dashpot chamber

90
137/514.7

Enlarged piston on end of valve stem

71
137/467

Fluid opened valve requiring reset

89
137/484.2

Line flow effect assisted

34
137/484.4

Reactor surface normal to flow

23
137/484.6

Reactor surface separated from flow by apertured partition

11
137/484.8

Through separate aperture

26
137/485

Pilot or servo controlled

25
137/487.5

Electrically actuated valve

859
137/488

Fluid pressure type

200
137/489

Choked or throttled pressure type

198
137/491

Choked passage through main valve head

107
137/489.3

Loose fitting piston

6
137/489.5

Pilot controls supply to pressure chamber

88
137/490

Pilot valve within main valve head

29
137/492

Single acting fluid servo

92
137/492.5

Spring biased

160
137/486

Responsive to change in rate of fluid flow

401
137/487

Control by pressures across flow line valve

77
137/469

Pop valves

114
137/475

Adjustable choke

3
137/476

Annular lip or baffle

9
137/477

On movable valve part

4
137/478

Screw threaded

14
137/474

Lost motion between pop pressure reactor and valve

9
137/470

Pop closing valves

6
137/472

Pop pressure reactor in branched released path

7
137/473

Separate relief valves or valves for each branch

2
137/471

Pop pressure reactor in inflow to valve

15
137/456

Safety cut-off requiring reset

53
137/464

Fluid counter-biased or unseated valve

18
137/466

With fluid pressure seating of valve

13
137/465

With mechanical stop against reopening

7
137/463

Fluid released trip

33
137/461

High pressure cut-off

50
137/462

Reset by pressure equalization valve or by-pass

51
137/458

Responsive to both high and low pressure or velocity

82
137/459

Responsive to change in rate of flow

22
137/460

Excessive flow cut-off

200
137/457

Thermal

28
137/468

Thermal responsive

190
137/494

With separate connected fluid reactor surface

263
137/506

Plural valves biased closed

22
137/497

Responsive to change in rate of fluid flow

29
137/500

Expansible chamber subject to differential pressures

23
137/501

Pressures across fixed choke

177
137/503

Pressures across flow line valve

83
137/502

With venturi tube having a connection to throat

8
137/504

Movable deflector or choke

213
137/499

Turbine or swinging vane type reactor

49
137/498

Valve closes in response to excessive flow

150
137/496

Valve closes in responses to reverse flow

64
137/508

Valve seat or external sleeve moves to open valve

219
137/509

Valve seating in direction of flow

122
137/510

Flexible diaphragm or bellows reactor

270
137/495

With manual or external control for line valve

272
137/507

With means for mounting or connecting to system

30
137/505

With opening bias (e.g., pressure regulator)

120
137/505.25

Apertured reactor surface surrounds flow line

184
137/505.18

Balanced valve

117
137/505.14

Bias variable during operation

70
137/505.15

Ancillary reactor surface responds to inlet pressure

23
137/505.16

Liquid transfer

4
137/505.17

Weight

1
137/505.19

Liquid level responsive gas flow control

0
137/505.21

Main flow through isolated reactor chamber

5
137/505.12

Multi-stage

62
137/505.38

Reactor surface closes chamber

28
137/505.46

Reactor operatively connected to valve by mechanical movement

69
137/505.39

Valve head in inlet chamber

25
137/505.4

Reactor surface is inverted cup (float)

1
137/505.41

Rectilinear valve stem rigid with reactor surface

93
137/505.42

With valve closing bias

138
137/505.43

In reactor chamber

4
137/505.44

Valve head on yoke

10
137/505.45

Yoke has valve closing bias

3
137/505.26

Reactor surface separated by apertured partition

29
137/505.27

In valve stem

4
137/505.28

Also through reactor surface

36
137/505.36

Reactor surface is diaphragm

23
137/505.37

With valve closing bias

27
137/505.29

Valve stem passes through the aperture

13
137/505.3

Plural reactor surfaces

5
137/505.31

Reactor is an inverted cup having liquid seal

0
137/505.33

Valve head in inlet chamber

2
137/505.32

With movement dampener

0
137/505.34

Valve head in inlet chamber

8
137/505.35

Rectilinear valve stem rigid with reactor surface

10
137/505.13

Senses inlet pressure

98
137/505.22

Through external pipe

19
137/505.24

Adjustable external lever

3
137/505.23

Modified valve casing

3
137/505.47

With mechanical movement between actuator and valve

35
137/505.2

With protective separator

2
137/505.11

With relief valve

65
137/386

Liquid level responsive or maintaining systems

132
137/453

Barometric

33
137/454

With shut-off between supply tank and receiver

19
137/409

By float controlled valve

48
137/434

Float arm operated valve

105
137/442

Assembly mounted on and having reciprocating valve element coaxial with inlet pipe

42
137/443

Horizontal or side entering pipe

37
137/444

Vertical inlet riser

60
137/450

Balanced valves

11
137/449

Ball valves

36
137/451

Flexible valve

43
137/438

Movable nozzle or inlet terminal

7
137/448

Pivoted valve

103
137/447

Rotary valve element

23
137/439

Valve removable from outside container

4
137/436

With flow guide or restrictor

73
137/437

External hood or deflector or annular outlet surrounding the inlet pipe

38
137/446

With interposed cam, gear or threaded connection

76
137/441

With refill pipe

42
137/445

With toggle or second lever connected to valve

47
137/440

With u-shaped inlet pipe having terminal valve

2
137/435

With valve retarder or cushion means

12
137/428

In separate communicating float chamber

68
137/426

Level adjustment or selection means

170
137/423

Plural floats

89
137/416

Quick acting

23
137/422

Lost motion mechanism

21
137/418

Over center mechanism

14
137/419

Shifting weight

1
137/417

Pilot float released

3
137/420

Trip mechanism

12
137/421

Weight or spring bias

24
137/429

Rectilinearly traveling float

81
137/430

Float co-axial with valve or port

98
137/431

Float is spreader or anti-splash means

1
137/433

Float rigid with valve

177
137/432

Float surrounds inlet pipe

55
137/412

Servo relay operation of control

51
137/413

Fluid pressure

98
137/414

Flexible diaphragm valve

118
137/415

From tank

24
137/411

Single float controls plural valves

23
137/410

Valve opened by external means, closing or closing control by float

68
137/424

With counter-balance

5
137/425

Within tank

17
137/427

With float leakage disposal

6
137/403

By weight of accumulated fluid

78
137/406

In communicating measuring vessel

9
137/407

Top and bottom connections

2
137/408

In gravitating tank

16
137/404

In sinking or bucket type float

10
137/405

Oil burner fuel overflow preventing safety cut-offs

2
137/391

Control of both inflow and outflow of tank

92
137/395

Control of outflow from tank

62
137/398

By float

57
137/399

Low level safety cut-off

54
137/396

Self-emptying tanks

40
137/397

By float

37
137/392

Electrical characteristic sensing

258
137/388

Liquid excluding devices for gas inlet or outlets

13
137/387

Washing machine cycle control

48
137/393

With control fluid connection at desired liquid level

85
137/389

With second diverse control

56
137/390

Manual control

41
137/400

With supplemental or safety closing means or bias

24
137/402

Gravitating tank

0
137/401

Sinking or bucket type float

2
137/909

Magnetic fluid valve

46
137/802

Miscellaneous

16
137/330

Non-valving motion of the valve or valve seat

21
137/331

Rotary motion of a reciprocating valve

34
137/333

Manual rotating means

2
137/332

Turbine on valve

8
137/255

Plural tanks or compartments with parallel flow

109
137/260

Battery or electrolytic cell replenishment

52
137/261

Barometric supply

7
137/262

Flow dividing compartments

26
137/256

Sequentially filled and emptied (e.g., holding type)

60
137/257

With relative rotation of tank group and filling head

1
137/258

With rotary filling and emptying head

1
137/263

Tank type manifold (i.e., one tank supplies or receives from at least two others)

62
137/264

Tank within tank

53
137/265

With cross connecting passage

54
137/259

With housings, supports or stacking arrangements

28
137/266

With manifold or grouped outlets

107
137/267

Tank truck type

28
137/82

Pressure modulating relays or followers

163
137/83

Jet control type

53
137/84

Plural series units

48
137/85

With counter-balancing pressure feedback to the modulating device

166
137/86

With counter-counter balancing pressure feedback

24
137/1

Processes

941
137/13

Affecting flow by the addition of material or energy

523
137/12.5

Carbonated beverage handling processes

13
137/15.01

Cleaning, repairing, or assembling

181
137/15.04

Fluid cleaning or flushing

98
137/15.05

Liquid cleaning or flushing

63
137/15.06

Valve or valve seat cleaning

45
137/15.03

Gas or water meter repairing or assembling

24
137/15.07

Mechanical cleaning (e.g., pig, etc.)

26
137/15.02

Repairing or assembling hydrant (e.g., fireplug, etc.)

29
137/15.08

Repairing, securing, replacing, or servicing pipe joint, valve, or tank

105
137/15.11

Detecting or repairing leak

81
137/15.09

Including joint or coupling

74
137/15.17

Specific valve or valve element mounting or repairing

111
137/15.12

Tapping pipe, keg, or tank

49
137/15.13

Particular aperture forming means

35
137/15.14

Cutter or cutting tool

51
137/15.15

Having deformable or inflatable means

29
137/15.16

With content loading or unloading (e.g., dispensing, discharge assistant, etc.)

35
137/15.18

Valve or valve element assembling, disassembling, or replacing

291
137/15.22

Ball valve or rotary ball valve

69
137/15.25

Butterfly valve

56
137/15.26

Float valve

35
137/15.19

Fluid actuated or retarded

53
137/15.23

Gate valve

18
137/15.21

Multi way valve

30
137/15.24

Plug valve

26
137/14

Involving pressure control

484
137/2

With control of flow by a condition or characteristic of a fluid

289
137/12

By fluid pressure

224
137/10

By speed of fluid

48
137/9

For producing proportionate flow

75
137/8

For producing uniform flow

84
137/11

For regulating boiler feed water level

7
137/3

Mixing of plural fluids of diverse characteristics or conditions

251
137/5

Controlled by conductivity of mixture

55
137/4

Controlled by consistency of mixture

56
137/6

Controlled by heat of combustion of mixture

13
137/7

Controlled by pressure

90
137/454.2

Removable valve head and seat unit

275
137/454.4

Pump type

61
137/454.6

Retained by bonnet or closure

273
137/454.5

Threaded into valve casing

182
137/908

Respirator control

103
137/309

Reversing valves - regenerative furnace type

25
137/311

Rotary reversing valve

16
137/310

With cooling

1
137/905

Rotary valves for multiple gas burners

2
137/903

Rubber valve springs

64
137/87.01

Self-proportioning or correlating systems

39
137/87.03

Flow rate responsive

38
137/87.04

Pressure differential

33
137/94

Fuel controlled by boiler or water system condition

12
137/87.02

Liquid level responsive

12
137/88

Mixture condition maintaining or sensing

161
137/93

By optical or chemical property

183
137/91

By specific gravity

40
137/92

By viscosity or consistency

69
137/89

Dividing and recombining flow

20
137/87.05

Plural sensors

12
137/87.06

For single valve

10
137/109

Self-controlled branched flow systems

33
137/115.01

Bypass or relief controlled by main line fluid condition

19
137/115.03

Flow rate responsive

63
137/115.06

Bypass or relief valve biased open

45
137/115.08

Carried choke

12
137/115.09

Choke

47
137/115.1

Variable choke resistance

30
137/115.12

Flapper

4
137/115.04

Including controlling main line flow

24
137/115.05

Relief or bypass closes as main opens

33
137/115.07

Pilot valve operated

32
137/115.11

Venturi

10
137/115.02

Liquid level responsive

6
137/115.13

Pressure responsive

97
137/115.16

Bypass or relief valve biased open

85
137/115.17

Increasing pressure progressively closes then reopens by-pass or relief valve

14
137/115.18

Bypass or relief valve responsive to pressure downstream of outlet valve

29
137/115.2

Outlet valve carried by bypass or relief valve

5
137/115.19

Pilot valve

18
137/115.14

Common sensor for both bypass or relief valve and other branch valve

24
137/115.15

Bypass or relief valve opens as other branch valve closes

39
137/115.25

Electrical control

29
137/115.24

Mechanical movement between sensor and valve

7
137/115.23

Pilot valve operated

40
137/115.21

Plural sensors for single bypass or relief valve

33
137/115.22

Sensors interconnected by timing or restrictive orifice

12
137/115.26

Sensor rigid with valve

43
137/115.27

Flexible sensor

15
137/115.28

Pressure responsive outlet valve

4
137/116.3

With pressure reducing inlet valve

100
137/116.5

Relief port through common sensing means

108
137/110

Dividing and recombining

174
137/111

Plural inflows

81
137/112

Alternate or successive inflows

172
137/113

Control by depletion of source

110
137/114

One inflow supplements another

150
137/118.01

Plural outflows

29
137/119.01

Alternately or successively substituted outflow

21
137/120

Control by filling auxiliary gravitating or float operating tank

4
137/121

Control by filling outlet tank or receiver

5
137/122

Float controlled

13
137/119.1

Electrical control

15
137/119.06

Flow rate responsive

30
137/119.07

Flow sensing turbine

23
137/119.02

Four port reversing valve

7
137/119.08

Pressure responsive

29
137/119.09

Responsive to outlet pressure

18
137/119.03

Responsive to pressure or flow interruption

48
137/119.05

Manually set to a single outflow position

24
137/119.04

Plural outlets control with automatic reset

31
137/118.03

Biased open isolation valve

21
137/118.04

Flow rate responsive

35
137/118.05

Primer valve

14
137/118.06

Pressure responsive

82
137/118.07

With external control for correlating valve (e.g., manual)

23
137/118.02

Single actuator operates plural outlets simultaneously

28
137/98

Self-proportioning flow systems

129
137/100

Flow comparison or differential response

133
137/101

Flow dividers (e.g., reversely acting controls)

102
137/101.11

Main line flow displaces or entrains material from reservoir

43
137/101.19

With electrical controller

87
137/101.21

Flow displacement element actuates electrical controller

42
137/99

Interconnected flow displacement elements

114
137/99.5

Movable trap chamber

4
137/101.25

Liquid level response

33
137/101.27

Float controlled weir or valve

27
137/101.29

Swinging outlet pipe controller

2
137/101.31

With measuring type discharge assistant

15
137/102

Supply and exhaust type

293
137/106

Reversing or 4-way valve systems

83
137/103

Vacuum or suction pulsator type (e.g., milking machine)

31
137/105

With pulsation responsive pilot valve

2
137/104

With trip linkage or snap action

1
137/107

Waste responsive to flow stoppage

102
137/123

Siphons

15
137/153

Elements

9
137/132

Periodic or accumulation responsive discharge

48
137/134

Control by filling auxiliary tank

2
137/135

Float-operated inlet to siphon

24
137/136

Release of trapped air

8
137/137

Through float-operated vent

7
137/138

Through liquid trap seal

10
137/139

Auxiliary liquid trap seal

7
137/133

With manual control

5
137/124

Plural

21
137/128

Main siphon with auxiliary starting, stopping or resetting siphon

11
137/129

Sinking or bucket-type float operated main siphon, float emptying auxiliary siphon

3
137/126

Sequentially discharging in parallel

3
137/127

From plural tanks

1
137/125

Tank truck mounted

3
137/130

With discharge-controlling receiver

4
137/131

With float

2
137/142

With flow starting, stopping or maintaining means

56
137/146

Plunge or immersion starting

7
137/145

Pressure applied to liquid in supply chamber

13
137/147

Pump or liquid displacement device for flow passage

28
137/150

Collapsible bulb

15
137/148

Piston

11
137/149

Co-axial within flow passage

6
137/150.5

Siphon inlet movable to and from seat

3
137/143

Siphon venting or breaking

40
137/144

With leakage or entrained air removal

4
137/151

With valve or closure in-flow passage

32
137/152

With means for mounting and/or positioning relative to siphon chamber

27
137/141

With recorder, register, signal, indicator or inspection window

4
137/140

With strainer, filter, separator or sediment trap

41
137/902

Slush pump check valves

30
137/47

Speed responsive valve control

23
137/48

Acceleration responsive valve control

15
137/53

Centrifugal mass type (exclusive of liquid)

16
137/57

Excess speed responsive

17
137/55

Periodically actuated valve

5
137/56

Rotating valve and rotating governor

40
137/58

With fluid servo-motor

7
137/54

With multiple valves

15
137/50

Speed change and excess speed valve control

14
137/49

With manual valve control

4
137/51

With other condition responsive valve control

15
137/52

Governor drive failure responsive

1
137/561R

Systems

118
137/615

Articulated or swinging flow conduit

305
137/616

Actuates valve

8
137/616.3

Plural motions of valve

4
137/616.5

Reciprocating valve

12
137/616.7

Rotary valve

26
137/563

Closed circulating system

266
137/564

With thermal circulating means (thermo-siphons)

17
137/599.01

Dividing into parallel flow paths with recombining

142
137/601.14

Electrical actuator

100
137/599.11

Flow passage with bypass

118
137/599.14

Including cleaning, treating, or heat transfer feature

51
137/599.15

Water treatment feature

19
137/599.13

Including flowmeter

27
137/599.12

Including mixing feature

43
137/601.13

Fluid actuated or retarded

49
137/599.09

Fluid pressure regulator in at least one branch

47
137/599.05

Having digital flow controller

38
137/599.06

Having plural branches under common control for separate valve actuators

12
137/599.07

Electromagnetic or electric control (e.g., digital control, bistable electro control, etc.)

52
137/601.2

Having direct response valve (e.g., check valve, etc.)

60
137/601.21

With reverse flow direction

28
137/601.18

Having guide or restrictor

62
137/601.19

Manually variable

29
137/601.15

Mechanical movement between actuator and valve

22
137/601.16

Rotary valve

37
137/601.17

Butterfly valve

31
137/599.16

Second valve assembly carried by first valve head

81
137/599.18

Carried valve is direct response valve (e.g., check valve, etc.)

48
137/599.17

With rotary plug having variable restrictor

14
137/599.03

System having plural inlets

55
137/599.04

Having digital flow controller

15
137/601.01

With common operator

61
137/601.02

Balanced valve

9
137/601.12

Mechanical movement between actuator and non-rotary valve

12
137/601.05

Rotary valve

26
137/601.07

Axes of rotation of valves intersect at point

3
137/601.08

Axes of rotation parallel

12
137/601.09

Adjacent plate valves always parallel

59
137/601.11

Adjacent plate valves counter rotate

26
137/601.06

Including rigid plate with flexible or resilient seal

22
137/601.03

Single resilient member actuates or forms plural passages

5
137/601.04

Valves deform to close passage

16
137/599.02

With fluid coupling (e.g., railway car hose coupling, truck-trailer oil system coupling, etc.)

11
137/600

With foam controlling means (e.g., beer, soda faucets)

1
137/599.08

With multi way valve having serial valve in at least one branch

45
137/562

Faucet connected, sink drained

25
137/613

Flow path with serial valves and/or closures

514
137/614.19

Biased valve with external operator

164
137/614.21

Coaxial oppositely directed seats

107
137/614.11

Common actuator

191
137/614.13

Alternately seating

27
137/614.14

Biased valve

23
137/614.12

Delivery cock with terminal valve

7
137/614.15

Opposed screw

1
137/614.2

Direct response normally closed valve limits direction of flow

344
137/614.18

One valve head carries other valve head

142
137/614.16

One valve head provides seat for other head

29
137/614.17

Also carries head of other valve

137
137/614

Separable flow path section, valve or closure in each

178
137/614.01

Common joint and valve seat faces, or sections joined by closing members

56
137/614.06

Coupling interlocked with valve, or closure or actuator

185
137/614.02

Each valve and/or closure operated by coupling motion

63
137/614.03

Linear motion of flow path sections operates both

263
137/614.04

Valves actuate each other

412
137/614.05

Valve- or closure-operated by coupling motion

242
137/593

Head-establishing standpipe or expansion chamber (e.g., surge tanks)

47
137/598

Hydraulic brake line (e.g., hill holders)

11
137/624.27

Line condition change responsive release of valve

84
137/564.5

Main line as motive fluid for follower-type feeder

61
137/581

Movable tank

15
137/625

Multi-way valve unit

54
137/625.28

Dividing into parallel flow paths with recombining

73
137/625.33

Reciprocating

192
137/625.37

Piston

124
137/625.38

With internal flow passage

113
137/625.39

Sequential opening or closing of serial ports in single flow line

28
137/625.34

Spool

49
137/625.36

Unequal heads

4
137/625.35

With internal passage

31
137/625.31

Rotary

156
137/625.32

Plug

134
137/625.29

Valve with bypass connections

102
137/625.3

With metering feature

371
137/625.43

Four port reversing valves

141
137/625.4

Multiple inlet with single outlet

395
137/625.41

Rotary valve

320
137/625.44

Pivoted valve unit

142
137/625.45

Gate

24
137/625.18

Plural noncommunicating flow paths

90
137/625.19

Rotary plug

62
137/625.48

Reciprocating valve unit

290
137/625.49

Combined disk or plug and gate or piston

24
137/625.5

Plural disk or plug

212
137/625.46

Rotary valve unit

361
137/625.47

Plug

366
137/625.42

Selective opening of plural ports

33
137/625.17

Selective reciprocation or rotation

330
137/625.11

Sequential distributor or collector type

233
137/625.12

Sequentially progressive opening or closing of plural ports

45
137/625.13

With subsequent closing of first port

21
137/625.14

Flow combining with flow dividing

6
137/625.15

Rotary

78
137/625.16

Plug

29
137/625.2

Supply and exhaust

36
137/625.65

Motor-operated

730
137/625.66

Fluid motor

363
137/625.6

Pilot-actuated

125
137/625.63

Common to plural valve motor chambers

106
137/625.64

Electric

518
137/625.61

Variable orifice-type modulator

78
137/625.62

Opposed orifices; interposed modulator

60
137/625.25

Reciprocating valve

109
137/625.26

Combined disk or plug and gate or piston

57
137/625.67

Piston valve

38
137/625.69

With annular passage (e.g., spool)

421
137/625.68

With internal flow passage

252
137/625.27

Plural disk or plug

158
137/625.21

Rotary valve

228
137/625.22

Plug type

78
137/625.24

Axial and radial flow

171
137/625.23

For plural lines

179
137/597

Multiple inlet with multiple outlet

516
137/602

Multiple inlet with single outlet

79
137/888

Combining by aspiration

123
137/889

Combining of three or more diverse fluids

52
137/891

Flow control by varying position of a fluid inlet relative to entrainment chamber

28
137/890

Plural motivating fluid jets

31
137/895

With condition responsive valve

105
137/892

With selectively operated flow control means in inlet

55
137/893

Flow control means is located in aspirated fluid inlet

104
137/894

Single actuator operates flow control means located in both motivating fluid and aspirated fluid inlets

27
137/603

Faucet attachment

18
137/605

With flow control

138
137/606

Valve in each inlet

373
137/607

With common valve operator

255
137/896

With means to promote mixing or combining of plural fluids

163
137/897

With selectively operated flow control means

91
137/898

Single actuator operates plural flow control means

30
137/561A

Non-valved flow dividers

362
137/594

Plural noncommunicating flow paths

90
137/595

With common valve operator

237
137/626

Plural petcocks

2
137/571

Plural tanks or compartments connected for serial flow

225
137/573

Fluid progresses by zigzag flow

24
137/574

Plural compartments formed by baffles

220
137/575

Plural top-to-bottom connected tanks

45
137/572

Separable with valved-connecting passage

111
137/576

With communicating opening in common walls of tanks or compartments

168
137/624.11

Programmer or timer

362
137/624.22

Biased latch, cam operated

7
137/624.21

Clock alarm mechanism controlled

6
137/624.18

Plural, sequential, valve actuations

196
137/624.19

Plural trips or trip actuations

3
137/624.2

Variable cycle

131
137/624.13

Repeating cycle

163
137/624.14

Self-cycling

239
137/624.15

Variable

117
137/624.17

Adjustable cam

8
137/624.16

Attachable and removable element

5
137/624.12

With independent valve controller

156
137/627

Sequential distributor or collector type

36
137/627.5

Sequentially closing and opening alternately seating flow controllers

333
137/628

Sequentially progressive opening or closing of plural valves

57
137/630.19

Lost motion

31
137/630.2

Cam determines sequence

20
137/630.22

First valve actuates second valve

63
137/630.21

Rotary concentric valves

4
137/629

Pressure equalizing or auxiliary shunt flow

47
137/630

One valve seats against other valve (e.g., concentric valves)

54
137/630.15

Actuator moves both valves

93
137/630.14

First valve moves second valve

86
137/630.12

Gate

21
137/630.11

Locomotive throttle

0
137/630.13

With balancing chamber

17
137/630.18

Screw-actuated differential valves

4
137/630.16

With subsequent closing of first opened port

9
137/630.17

Simultaneously moved port controllers

5
137/596

Supply and exhaust

266
137/596.1

Biased exhaust valve

110
137/596.2

Biased closed

196
137/596.17

Motor

407
137/596.18

Fluid motor

180
137/596.14

Pilot-actuated

87
137/596.15

Common to plural valve motor chambers

113
137/596.16

Electric

281
137/596.12

With bypass

107
137/596.13

Controlled by supply or exhaust valve

240
137/583

System with plural openings, one a gas vent or access opening

44
137/584

Access and outlet

29
137/585

Tank access opening and bottom outlet

15
137/586

Access opening interlock or telltale on outlet valve actuator

6
137/587

Tank with gas vent and inlet or outlet

437
137/588

Vent and inlet or outlet in unitary mounting

278
137/589

With vented outlet

61
137/590

Tank with internally extending flow guide, pipe or conduit

317
137/592

Inlet internally extending

229
137/591

Inverted "u" passage

10
137/590.5

Nondraining overflow type

17
137/577

Tank with movable or adjustable outlet or overflow pipe

64
137/578

Float-supported outlet

46
137/577.5

Horizontally traversing outlet

2
137/579

Swinging outlet pipe or spout

25
137/637

Valves with separate, correlated, actuators

75
137/637.2

Coaxial stems

50
137/637.3

Rotary

37
137/637.4

And reciprocating

25
137/637.5

Concentric, central valve removable

6
137/637.05

Correlated across separable flow path joint

9
137/637.1

Interlocked

88
137/582

With antisplash means not in flow passage

19
137/861

With flow control means for branched passages

107
137/877

Biased valve

26
137/878

Spring bias

30
137/879

For valve having a ball head

17
137/881

Spring coaxial with valve

125
137/882

Biased open

44
137/880

With threaded actuator

1
137/887

Containing rotary valve

89
137/884

Sectional block structure

788
137/883

Single inlet with multiple distinctly valved outlets

406
137/862

With common valve operator

73
137/864

For valve having a ball head

26
137/863

For valve having a flexible diaphragm valving member

63
137/869

Having fluid actuator

55
137/867

Pivoted or rotary motion converted to reciprocating valve head motion

19
137/868

Spring biased

29
137/871

Spring biased

49
137/866

Threaded actuator

6
137/870

With electrical actuation

127
137/865

With gearing

29
137/885

With fluid actuator

127
137/886

With threaded actuator

34
137/872

With valve or movable deflector at junction

93
137/873

Movable deflector spout in lateral port

8
137/875

Pivoted valve or deflector

164
137/876

Rotary valve or deflector

121
137/874

Valve or deflector is tubular passageway

81
137/635

With preselecting means for plural valve actuator

25
137/565.01

With pump

119
137/565.22

And jet-aspiration type pump

78
137/565.17

Combined with fluid receiver

104
137/565.18

Compressed air supply unit

21
137/565.37

Fluid sump

47
137/565.19

Hydraulic power unit

11
137/565.34

Reserve or surge receiver

103
137/565.27

Downstream cyclic distributor

7
137/565.28

Distributor part unitary with movable pump part

1
137/565.36

Drain valve actuator mounted on pump

5
137/565.25

Hand pump

9
137/565.26

Multiple inlet with multiple outlet

10
137/565.29

Plural

57
137/565.33

Parallel

130
137/565.3

Serial

58
137/565.31

With single motive input

15
137/565.32

One pump driven by motive fluid from the other

4
137/565.11

Pumped fluid control

46
137/565.16

Electric

55
137/565.13

Fluid pressure responsive

43
137/565.14

And pilot valve

11
137/565.15

Direct response valve

24
137/565.12

Manual

28
137/565.24

Resiliently mounted pump

21
137/565.23

Vacuum pump

74
137/565.35

With pump bypass

45
137/580

With running joint between movable parts of system

164
137/636

With selective motion for plural valve actuator

55
137/636.1

Oppositely movable cam surfaces

105
137/636.4

Reciprocation along and rotation about same axis

55
137/636.2

Rotation about either of two pivotal axes

117
137/636.3

Rotation of actuator arm about its pivot and its axis

51
137/907

Vacuum-actuated valves

289
137/906

Valves biased by fluid "springs"

81
137/343

With casing, support, protector or static constructional installations

138
137/374

Furniture and housing furnishings

5
137/377

Guards and shields

219
137/380

Cover for beer cooler aperture for faucet

4
137/379

Nozzle abutment for scratch or damage prevention

8
137/378

Resilient abutment for preventing breakage

5
137/381

Sanitary covers or shields

38
137/382

Valve guards

394
137/382.5

With means for accommodating a detachable actuator

61
137/375

Jacketed

496
137/356

Static constructional installations

44
137/357

Buildings

176
137/359

Escutcheon type support

212
137/362

Floor installation

107
137/358

Outside access to portions of the system

7
137/360

Wall

375
137/361

Recessed gas outlet box

2
137/363

Ground supporting enclosure

84
137/372

Pipe line transport

22
137/364

Valve and meter wells

70
137/368

Combined with actuator

29
137/369

Telescopic well casing

17
137/371

Covers

87
137/370

Telescopic well casing

26
137/365

With means to center well on valve

10
137/366

Detachable base plate

11
137/367

Vertical casing aligned by valve casing

17
137/373

Tapering or tower type

4
137/376

Tank supports

31
137/899

Vehicle

211
137/899.2

Aerial or water-supported (e.g., airplane or ship, etc.)

76
137/351

Automotive

155
137/353

Dash

23
137/355

Fender or running board

9
137/354

Floor or frame

35
137/352

Steering post or wheel

0
137/899.1

Guided by means of track or guideway

17
137/345

Locomotive

2
137/346

Boiler or steam dome

1
137/347

Railway car

51
137/348

Car frame

8
137/349

End of car

10
137/350

Roof, wall or floor

34
137/899.4

Vehicle supports fluid compressor and compressed fluid storage tank

42
137/355.12

With hose reel storage means

75
137/899.3

With retractable or nonuse-positionable support wheel

10
137/355.16

With hose storage or retrieval means

162
137/355.28

Basket or holder for folded coiled hose

33
137/355.26

Reel with support therefor

113
137/355.27

Ground supported

80
137/355.18

With flow regulation responsive to hose movement

7
137/355.19

Reel type

18
137/355.17

With means for plural hoses

67
137/355.2

With retrieval means

70
137/355.23

Biased to retracted position

57
137/355.24

Boom type

10
137/355.25

Weighted

11
137/355.21

Power stop or brake

18
137/355.22

Responsive to position of hose in casing

14
137/237

With cleaner, lubrication added to fluid or liquid sealing at valve interface

26
137/238

Cleaning or steam sterilizing

132
137/242

Mechanical cleaning

131
137/244

Cleaning member reciprocates in passage

107
137/245

By-pass cleaning

8
137/245.5

Independent actuation

21
137/243

Valve grinding motion of valve on seat

17
137/243.1

Concentric stem

2
137/243.3

Lost motion permits grinding

2
137/243.5

Nut releasable from body and/or stem

0
137/243.2

Spring pressed

5
137/243.6

With independent grinding actuator

7
137/243.7

Separable

1
137/243.4

With swivel-preventing means

1
137/239

Reverse fluid flow

49
137/241

Steam sterilizing

47
137/240

With separate material addition

579
137/246

Liquid supplied at valve interface

54
137/246.22

External pressure

78
137/246.13

Feed by or with actuation

4
137/246.23

Gravity or capillary feed

7
137/246.12

Line pressure feed

13
137/246.14

Loss control

0
137/246.11

Plural feed

6
137/246.15

Screw feed

4
137/246.19

Jacking

1
137/246.2

Seating

0
137/246.16

With check valve

5
137/246.17

Excess relief

0
137/246.18

Jacking

0
137/246.21

Spring biased piston feed

1
137/800

With closure

60
137/798

With coupling

74
137/799

Flexible

20
137/342

With fluid system support for workman or non-system material

12
137/334

With heating or cooling of the system

164
137/338

Air heated or cooled (fan, fins, or channels)

70
137/340

Circulating fluid in heat exchange relationship

242
137/337

Hot and cold water system having a connection from the hot to the cold channel

111
137/335

With burner

15
137/336

Flue extending through fluid

0
137/339

With diversion of part of fluid to heat or cool the device or its contents

29
137/341

With electric heating element

305
137/268

With holder for solid, flaky or pulverized material to be dissolved or entrained

434
137/551

With indicator, register, recorder, alarm or inspection means

268
137/557

Fluid pressure responsive indicator, recorder or alarm

628
137/559

Inspection means

247
137/558

Liquid level responsive indicator, recorder or alarm

240
137/552

Plural

149
137/552.5

Unobvious - "combination lock" type

11
137/553

Position or extent of motion indicator

146
137/554

Electrical

621
137/556

Indicator element rigidly carried by the movable element whose position is indicated

252
137/556.3

Movable indicator element is a pointer

61
137/556.6

Pointer integral with handle

36
137/555

Selection from plural branches

17
137/552.7

Time

31
137/312

With leakage or drip collecting

812
137/314

Collector for waste liquid derived from solid, gas or vapor

23
137/313

Relatively movable receptacle or drain pipe and outlet

20
137/247

With liquid valves or liquid trap seals

14
137/247.11

Liquid seal in liquid flow line; flow liquid forms seal

18
137/247.29

Divided and recombined passages

9
137/247.33

Downward partition encircles projecting outlet

9
137/247.27

Plural inlet

16
137/247.25

Seal replenishers

28
137/247.35

Submerged inlet pipe end

16
137/247.39

Distinct seal bowl in flow line connected casing

14
137/247.37

Hinged seal bowl

1
137/247.31

Tangential inlet flow

2
137/247.41

U-seals

30
137/247.45

Enlarged upflow leg

11
137/247.47

Topside access opening

1
137/247.49

Even diameter legs

26
137/247.51

Access opening

29
137/247.43

Topside access beneath cover plate closed floor opening

6
137/247.13

Valves

6
137/247.15

Line condition change responsive

9
137/247.21

Ball valve

9
137/247.23

Seats vertically up

7
137/247.19

Pivoted valve

5
137/247.17

Plural valves or valve seats

7
137/251.1

Liquid valves

83
137/252

Branched passage for sealing liquid

6
137/253

With auxiliary means for varying liquid level

17
137/254

With baffle

12
137/248

Seal for relatively movable valving parts

10
137/249

Horizontally moving valve

0
137/250

Rotary

3
137/383

With lock or seal

88
137/384.2

Common lock and valve actuator

28
137/384.6

Biased valve

10
137/384.4

Combination lock

3
137/384.8

Mechanical movement between lock and valve

10
137/385

Locks against rotary motion

151
137/384

With seal

33
137/544

With means for separating solid material from the fluid

146
137/549

Hollow strainer, fluid inlet and outlet perpendicular to each other

189
137/547

Movable strainer

33
137/550

Planar strainer normal to flow path

264
137/545

Plural separating elements

74
137/546

Sediment chamber

60
137/315.01

With repair, tapping, assembly, or disassembly means

191
137/315.33

Assembling or disassembling check valve

74
137/315.07

Assembling or disassembling flexible tube or sleeve type valve

35
137/315.08

Assembling or disassembling float or float valve

35
137/315.09

Assembling or disassembling multi way valve

40
137/315.16

Assembling or disassembling pivoted valve

33
137/315.27

Assembling or disassembling reciprocating valve

76
137/315.29

Gate valve

26
137/315.3

Bifaced

19
137/315.31

Having particular valve seat

10
137/315.32

Including seal

5
137/315.28

Having particularly packed or sealed mechanical movement actuator

43
137/315.17

Assembling or disassembling rotary valve

30
137/315.22

Butterfly valve

32
137/315.23

Having valve head or seat packing

14
137/315.24

With head and stem collections

15
137/315.25

Plug valve

32
137/315.26

Having retainer at actuator end

9
137/315.18

Rotary ball valve

39
137/315.19

Particular valve seat or interface seal

23
137/315.2

Replaceable

16
137/315.21

With top entry valve

21
137/315.11

Assembling, disassembling, or removing cartridge type valve (e.g., insertable and removable as a unit, etc.)

78
137/315.12

Faucet type (e.g., domestic water use, etc.)

61
137/315.14

Including mechanical movement actuator

5
137/315.13

Including removable valve head and seat unit

34
137/315.15

Particular handle or handle fastening means

37
137/315.02

Blow out preventer or choke valve device (e.g., oil well flow controlling device, etc.)

23
137/326

Foot valve extraction from top of enclosure

2
137/315.06

Gas or water meter replacing

26
137/315.04

Pressure regulating type valve

59
137/315.05

Diaphragm type

43
137/329.1

Removable valve with normally disabled supplemental check valve

18
137/329.2

Check valve disabled by normally movable main valve part

9
137/329.3

Ball check

16
137/329.4

Spring bias

18
137/315.03

Solenoid or electromagnetically operated valve

92
137/317

Tapping a pipe, keg, or apertured tank under pressure

102
137/319

Imperforate closure removing and holding tap

21
137/318

With aperture forming means

390
137/324

With core ejectors

0
137/325

Impact operated

0
137/320

With valved closure or bung

25
137/321

Combined rotary and longitudinal movement of valve

22
137/322

Longitudinal movement of valve

119
137/323

Rotary movement of valve

12
137/315.41

Tool for applying or removing valve or valve member

81
137/315.42

Including sealing feature

11
137/327

With disassembly tool engaging feature

72
137/328

Wrench engaging lugs

17
137/316

With holding means functioning only during transportation assembly or disassembly

66
137/315.35

With mechanical movement between actuator and valve

47
137/315.39

Cam type

13
137/315.38

Gear type

14
137/315.37

Lever type

13
137/315.36

Plural motions of valve

20
137/315.4

Screw type

33
137/329

With provision of alternate wear parts

5
137/329.01

Valve heads and/or seats

20
137/329.05

Different portions of continuous surfaces

5
137/329.02

Opposite duplicate surfaces of unitary structure

11
137/329.03

Homogeneous material

7
137/329.04

Valve heads

15
137/329.06

Successively used adjacent independent elements

4
137/234.6

With vehicle guide or support, e.g., service station

73
 
 
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