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Class Information
Number: 337
Name: Electricity: electrothermally or thermally actuated switches >
Description: This class is restricted to the structure of electric current switching devices of general application for closing or opening electrical circuits which devices depend upon the heating effect of a current or of the ambient temperature of the surrounding medium for their operation.










Class Number Class Name No. of Patents
337/417

Details

10
337/14

Electrothermally actuated switches

43
337/21

Conductive fluid devices

10
337/114

Expansible or vaporizable fluid-actuated (e.g., mercury vapor)

11
337/119

Utilizing capillary tube or bore means

10
337/122

With contact or electrode structure or material (e.g., carbon)

11
337/120

With external heating means (external from fluid; may be the container)

6
337/121

With housing or casing

9
337/115

With manual or other mechanical contact actuating means

4
337/116

Cyclically or periodically operative

3
337/117

Utilizing diaphragm or bellows means

10
337/118

With restoring or resetting means

4
337/22

Fluorescent lamp-starting devices

12
337/25

Electric discharge means (e.g., electron-emissive)

3
337/26

With significant contact structure or composition

2
337/27

Bimetallic element

23
337/23

With significant heating means

3
337/24

With shunt or short-circuiting means (for resistor)

4
337/142

Fusible element actuated

55
337/167

Convertible (e.g., fused to nonfused)

32
337/158

Current limiting devices (e.g., high voltage fuses)

72
337/159

Comprising significant fuse link or element structure or arrangement

179
337/161

Plural elements

66
337/162

With diverse characteristics

37
337/160

With fusible metal overlay (e.g., alloy-forming)

63
337/168

Cutout or disconnect type (an assembly) of a fuse support and fuse holder with or without a fuse link)

48
337/180

Line terminal or contact structure

22
337/181

Directly connected by fusible element (e.g., in line-type fuse)

19
337/171

With dropout features (i.e., the fuse tube will be separated, or drop away from, at least on the main circuit contacts)

46
337/172

Utilizing combined mechanical motions (e.g., sliding with pivotal)

15
337/173

Utilizing sliding or reciprocating motions

9
337/174

With holding, latch or trip means

19
337/175

Combined latch or trip

6
337/176

Fusible element controlled

13
337/178

Spring biased

11
337/179

With delayed action

2
337/177

With fuse link extracting means

5
337/169

With kickout means

25
337/170

Fusible element controlled

10
337/163

Delayed action (i.e., time lag)

51
337/164

Utilizing plural fusible elements

36
337/165

With biased direct circuit opening means

30
337/166

With heat absorption, conducting or storage means

53
337/227

Fuse link carrier or holder

81
337/228

Cartridge or tube

57
337/246

Cartridge or tube structure or material of construction

26
337/247

Plural tubes (e.g., telescoping)

9
337/251

Contact or terminal structure

48
337/252

Attaching or securing means (to the tube or to the fusible element)

89
337/253

Locking, clamp or wedge means

8
337/254

Knife blade contact with slotted disk

4
337/248

Ferrule, cap or other seal means

73
337/231

With fuse link attaching support or securing means

67
337/234

Locking or clamping means

17
337/237

Replaceable or readily interchangeable

9
337/233

Rigid bar means

4
337/232

Soldered or brazed joint

43
337/235

Threaded screw or stud

4
337/236

Wedging or camming means

7
337/238

With fuse link tensioning means

7
337/239

Spring or other energy storage means

13
337/240

With strain member

2
337/249

With gas expulsion means

18
337/250

Venting, cooling or deionizing

17
337/245

With handle or other manipulating means

5
337/241

With indicating or inspection means

73
337/243

Chemical means

27
337/242

Glow lamp

31
337/244

Movable or displaceable element (e.g., plunger or semaphore)

41
337/229

With plural fuse links or elements

36
337/230

Selectively or successively insertable in common circuit

11
337/255

Plug

46
337/268

Contact or terminal structure

20
337/269

Plural diverse (e.g., male and female)

6
337/256

Plural fusible elements in a single carrier

19
337/257

Selectively or successively insertable in protected circuit

6
337/258

Selection means

1
337/259

Rotatable relatively movable

3
337/270

Structure or composition of material

2
337/271

Part of or structurally adapted for use with particular socket means

3
337/272

With venting means

6
337/260

With fuse element attachment or securing means

48
337/262

Particularly adapted for specific fuse element

11
337/263

Cartridge or capsule enclosed

11
337/264

Readily replaceable or detachable element

26
337/261

Resilient biasing or retaining means

16
337/265

With indicating means

56
337/266

Glow lamp or other incandescent means

25
337/267

Plunger or semaphore type

20
337/217

Fuse link extraction or expulsion means

12
337/218

Combined with contact structure

1
337/220

Pressure responsive

4
337/219

Spring means

5
337/290

Fusible link or element structure or material

151
337/296

Composite (e.g., with overlay)

79
337/294

Continuous strand adapted for successive insertion in protected circuit

0
337/293

Plural parallel fusible elements

64
337/292

Plural series-connected conductive elements forming a single link

39
337/297

With nonconductive core (e.g., printed circuit)

157
337/295

With particular geometrical shape or configuration

149
337/291

With strain-relief means

8
337/186

Housing, casing or support means

206
337/202

Bushing or insulator

24
337/200

Ceiling block fixture type (e.g., rosette)

0
337/199

With electrical ground, shield or barrier

18
337/187

With external circuit connection means

126
337/191

Cable or busbar attachment means

22
337/193

Line tap, hook or clamp

2
337/192

Socket or thimble

4
337/188

Plural conductor connector means

33
337/189

Distribution or load center type (e.g., plural outputs)

26
337/197

Plural diverse (e.g., male and female connectors)

36
337/198

Prong or blade (e.g., plug-type housing)

136
337/190

With fuse element tensioning or clamping means

21
337/194

With relatively movable cooperative elements (e.g., pull out)

54
337/196

Door or closure controlled

18
337/195

With spring biasing means

13
337/207

With external support or attaching means (e.g., hook)

7
337/208

With fuse carrier attachment means

29
337/209

Adaptor means

18
337/210

Combined with lockout or other circuit closure prevention means

9
337/212

Door-supported

5
337/213

Peculiarly adapted for cartridge fuse

36
337/214

With clamping, latch, or other attachment means

17
337/215

Spring clip

17
337/216

Peculiarly adapted for plug-type fuse carrier (e.g., fuse block)

21
337/211

With pull out or ejector means (for tube)

22
337/203

With gaseous venting or expulsion means (from the housing)

17
337/205

With locking, sealing or guard means

30
337/204

With oil or other liquid

29
337/206

With operational condition indicating means

75
337/201

With plural interfitting or interlocking sections

50
337/283

Plural independent fuses

17
337/284

Selectively or sequentially inserted in same protected circuit

16
337/285

Automatic selective means (e.g., repeater type)

3
337/288

Transfer or interlock means

1
337/286

With delayed action selective means

2
337/287

Hydraulic or pneumatic

0
337/289

Rotary selector means

3
337/273

With arc suppression or extinguishing means

81
337/282

Arcing chamber or passage structure

26
337/281

Blowout means (e.g., gaseous)

12
337/280

Cooling, condensing or absorbing means

23
337/279

Deionizing gas or vapor generating material

24
337/276

Dielectric filler material or compound (e.g., quartz)

30
337/278

Dielectric gap or barrier means (e.g., wedging dielectric)

28
337/277

Liquid (e.g., hydrocarbon)

9
337/274

Plural (e.g., auxiliary fuse)

3
337/275

With draw-out rod

9
337/221

With electrical shunt circuit means (may also be fusible)

10
337/182

With external or auxiliary heating means

25
337/185

Comprising or including heat storage or accumulator means

11
337/183

Resistive heater

25
337/184

Directly in series with or completing controlled circuit

11
337/143

With manual or other mechanical contact control means

19
337/150

Latching trip or holding means (actuated by condition by fuse element)

11
337/151

Ratchet and pawl

3
337/152

Thin film or resoldering (e.g., eutetic alloy)

15
337/154

Tripping or release means

4
337/153

With external or auxiliary heating means

7
337/156

Manually operated shunting, disconnect or load-break device

6
337/157

Mechanical fuse link rupturing means

22
337/145

Multiple contact or plural circuit control means

7
337/146

Multipole or polyphase

6
337/144

Plural fuses combined with single mechanical means

13
337/148

Reciprocal or rectilinear sliding motion actuating means (e.g., spring loaded plunger or striker pin)

14
337/149

Rotary or oscillatory motion device

2
337/147

Snap-action mechanical device

3
337/155

With reclosing or reset means

2
337/225

With overfusing or tamper prevention means

5
337/226

Special adaptor or other selective means

5
337/222

With switch protective means (for fuse structure)

12
337/224

Against corona (e.g., shield)

12
337/223

Against shock or recoil

4
337/35

Plural diverse similar art-type devices in single switch

21
337/15

Shunt or short circuit completion devices

17
337/16

Bimetallic means

31
337/17

Fusible material combined with gap

9
337/18

Gaseous space discharge gap (e.g., air gap)

9
337/19

Gap with thin film dielectric (e.g., voltage-responsive)

4
337/20

With significant housing or casing structure

5
337/28

Space discharge device (gaps, lightning arrester, etc.)

43
337/34

Housing, casing, mounting or support means

65
337/29

Plural

17
337/30

With explosive or combustible material

24
337/31

With fusible element (e.g., cutout means)

30
337/33

With common structural elements (e.g., fuse provides support or element of spark gap structure)

15
337/32

With grounding means

98
337/36

With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis)

71
337/85

Bimetallic element unitary with or directly actuates movable contact means

66
337/92

Cyclic or repetitively operative (e.g., flashing)

3
337/93

With interval predetermining or adjustment means

3
337/86

Plural contacts or external circuit connection means

9
337/87

Alternately or selectively actuated

6
337/88

Retarded or delayed type

7
337/89

Snap-action

65
337/90

With magnetic armature or holding means

4
337/91

With reset means

40
337/94

With operating range, calibration or adjusting means

41
337/95

With plural or combined elements

11
337/96

Responsive to diverse conditions or of diverse operative characteristics

5
337/111

Bimetallic structure or composition of material

36
337/109

Contact composition or structure

3
337/112

Housing, casing or support means

72
337/113

With external circuit connection means

59
337/110

With arc-suppression or blowout means

7
337/98

With contact operation inhibiting means (e.g., meltable or magnetic)

1
337/102

With external or auxiliary heating means

101
337/104

Plural heating means

24
337/107

Significant heating element structure or composition

90
337/108

Arc or spark gap

2
337/105

With electrical power supply or current control means

12
337/106

Inductive means (e.g., transformer)

0
337/103

With heater-adjusting, shunting or short-circuiting means

15
337/37

With manual or other mechanical contact controlling means

62
337/51

Cyclically or periodically actuated

1
337/69

Independently operative (nontrip-free)

0
337/70

Latch or latch-release means

63
337/75

Bimetallic element unitary with or comprising latch means

33
337/76

Performs dual functions (e.g., main contact)

7
337/71

Plural or responsive to diverse effects

7
337/74

Trip-free

24
337/78

Utilizing plural bimetallic elements

16
337/77

With external or auxiliary heater

19
337/72

With reclosing or reset means

50
337/73

Automatic

6
337/41

Multiple contact or plural circuit control means

7
337/42

Plural switches

7
337/43

With interlocking means

5
337/44

Selectively or alternately actuated

2
337/45

Single multipole or polyphase control device

13
337/46

With common mechanical actuating or tripping means

10
337/47

With separate latching or tripping means in each phase

9
337/48

With common trip-bar means

6
337/50

Rotatable

11
337/49

Slidable or reciprocal bar

28
337/38

Plural elements combined with single mechanical means

10
337/39

Independently operative bimetallic elements

20
337/40

Individually responsive to diverse conditions or diverse characteristics

1
337/81

Retarded or delayed action type

1
337/67

With contact pressure maintaining or adjusting means

10
337/68

With direct contact separating means (e.g., plunger camming means)

46
337/80

With mercury or other conductive liquid circuit completion means

5
337/82

With operating range calibration or adjustment means

45
337/83

Comprising electric shunt or short-circuiting means

3
337/84

Comprising mechanical means

10
337/79

With signal or indicating means

47
337/52

With spring or other energy storage device

10
337/58

Compound motion means

3
337/60

Floating lever

5
337/59

Toggle

70
337/62

Reciprocating or slidable motion device

25
337/64

With camming or wedging means

8
337/65

With contact guiding or alignment means

0
337/63

With lost motion coupling means

0
337/66

With push-button actuating means

152
337/61

Rotary or oscillatory motion device (e.g., spring motor)

8
337/53

Snap-action

37
337/57

With adjusting or calibration means

24
337/55

With latching or holding means

5
337/54

With magnetic flux source (e.g., magnetic armature)

6
337/56

With reclosing or reset means

41
337/97

With switch structure protective means

12
337/99

With voltage or ambient temperature compensation means

12
337/100

Auxiliary heating means

20
337/101

Bimetallic means

19
337/123

With longitudinally expansible solid element (e.g., rod, wire strip, etc.)

44
337/137

Contact structure or composition

5
337/138

Cyclically or periodically operated (e.g., flasher)

3
337/125

With electrical shunting or short-circuiting means

3
337/141

With external or auxiliary heating means

31
337/126

With manual or other mechanical contact actuating means

5
337/128

Latching or tripping means

1
337/129

With adjustment or calibration means

7
337/130

With reset or reclosing means

6
337/131

Snap-action (e.g., bistable)

5
337/135

With flexible vane or plate

3
337/136

With preset deformation

4
337/134

With magnetic biasing or holding means

3
337/133

With stop means (e.g., motion limiting)

0
337/132

With toggle spring

6
337/127

With delayed action or timing means

0
337/139

With significant expansible element structure or composition of material

52
337/140

Wire or other stranded element

122
337/124

With voltage or ambient temperature compensation means

2
337/298

Thermally actuated switches

63
337/306

Expansible or vaporizable fluid actuated

11
337/329

Contact structure or composition of material

13
337/331

Comprising conductive liquid (e.g., mercury)

12
337/330

With relative position adjustment means

2
337/326

Fluid or fluid pressure generating means

6
337/327

Housing, casing or support means

27
337/328

With pressure relief (e.g., venting)

5
337/309

Multiple contacts or external circuit completion means

13
337/310

Plural independent switches

5
337/311

Selective, sequentially or alternately actuated

7
337/307

Plural expansible elements with single switch

5
337/308

Individually responsive to diverse conditions or of diverse characteristics

4
337/324

With auxiliary heater

10
337/322

With bourdon tube

6
337/320

With diaphragm or bellows structure

29
337/321

Combined with capillary tube or bore

19
337/325

With latching, locking or holding means

0
337/312

With manual or other mechanical contact control means

14
337/313

Combined or compound motion device

6
337/314

Reciprocating or sliding motion

4
337/315

Piston or plunger

7
337/316

Rotary or oscillatory motion device

1
337/317

With spring or other energy storage means

5
337/318

Snap-action

12
337/319

With adjusting, calibrating or compensating means

33
337/323

With operating range calibration or adjustment means

31
337/332

With signaling, alarm or visual indicator means

11
337/299

Plural diverse actuating means in single switch

30
337/300

Responsive to plural external conditions (e.g., temperature and humidity)

19
337/333

With bimetallic element

113
337/379

Bimetallic element structure or composition of material

37
337/362

Bimetallic element unitary with or directly actuates contacts

42
337/369

Cyclically or repetitively operative

4
337/372

Element attachment or mounting means

71
337/363

Multiple contacts or external circuit control means

15
337/364

Alternately or selectively actuated

6
337/365

Snap-action

119
337/368

With adjustment or calibration means

55
337/366

With magnetic flux source

5
337/367

With reset means

17
337/370

With plural bimetallic elements

20
337/371

Of diverse operating characteristics or responsive to diverse conditions

14
337/373

Contact structure or composition of material (e.g., mercury)

16
337/374

With position adjusting means

10
337/375

Leaf spring with direct thrust element

8
337/380

Housing, casing or support structure

202
337/381

With significant external circuit connection means

39
337/377

With auxiliary heating means

77
337/378

With compensation means (e.g., ambient temperature)

13
337/334

With manual or other mechanical contact control means

23
337/350

Compound motion means

3
337/355

Independently operative

1
337/356

Latch or latch-release means

5
337/357

Adjustable

5
337/359

With bimetallic element comprising or unitary with latch

6
337/358

With reclosing or reset means

8
337/337

Multiple contact or plural circuit control means

14
337/338

Plural separate switches

16
337/339

With interlocking

4
337/340

With contacts selectively, alternately or sequentially actuated

19
337/335

Plural elements combined with single mechanical means

9
337/336

Individually responsive to diverse conditions or of diverse operating characteristics

12
337/354

Reciprocating or slidable motion means

68
337/351

Rotary or oscillatory motion means

3
337/353

Including cam and follower

4
337/352

With frictional clutch drive means

0
337/349

With contact biasing, pressure control or adjusting means

25
337/342

With spring or other energy storage means

27
337/343

Snap-action

86
337/347

With adjusting or calibration means

40
337/346

With frictional coupling or lost motion means

2
337/344

With magnetic flux source (e.g., magnetic armature)

10
337/348

With reset or reclosing means

42
337/345

With toggle linkage

7
337/341

With time-delay means

2
337/360

With operating range calibration or adjustment means

52
337/361

Utilizing cam or roller

26
337/376

With signal or indicating means

18
337/401

With fusible, combustible or explosive material

113
337/413

Contact structure or composition of material

23
337/416

Fusible, link or element structure or composition of material

64
337/414

Housing, casing or support means

54
337/415

Flexible or resilient

18
337/412

Plural independent fuse elements with single circuit completion means

8
337/402

With manual, gravity-actuated or other mechanical contact control means

15
337/403

Automatic cutout or disconnect type

39
337/404

With fusible element directly connecting contacts

37
337/405

With fusible element opening the circuit (no mechanical contacts)

66
337/411

Latch, trip or holding means

9
337/406

Multiple contacts or plural circuit control means

11
337/407

Utilizing spring or other energy

119
337/408

Reciprocating or slidable motion device

49
337/409

Plunger or piston

49
337/410

Rotatable

2
337/382

With longitudinally expansible solid element

38
337/399

Contact or terminal structural or composition of material

5
337/400

With position adjustment means

0
337/393

Expansible solid structure or composition of material

46
337/396

Diaphragm, strip or ribbon

11
337/394

Rod, tube or cylinder

57
337/395

Wire or stranded material

21
337/398

Housing, casing or support means

23
337/397

Plural deformable elements in single switch

5
337/384

With manual or other mechanical contact control means

3
337/387

Comprising frictional clutch or lost motion means

3
337/386

Comprising mechanical advantage or force multiplying means

8
337/385

Latching or tripping means

0
337/388

With spring or other energy storage means

11
337/389

Comprising resilient leaf spring

8
337/390

Snap-action

10
337/391

With flexible vane or plate

7
337/392

With operating range calibration or adjusting means

13
337/383

With plural contacts or external circuit completion means

11
337/301

With mechanical timing means (e.g., clockwork)

14
337/302

Periodic or cyclically operative

9
337/303

With predetermined operative cycle adjusting means

7
337/304

With predetermined operative temperature range

5
337/305

Utilizing cam or eccentric

17
337/12

With diverse art-type actuator for single switch

19
337/13

Bimetallic with other

26
337/1

With diverse art-type device

49
337/2

With separate distinct diverse art-type switching device (e.g., fluid- or mechanical-actuated)

22
337/3

Bimetallic device with other

69
337/4

Fusible element device with other

80
337/5

Diverse art-type switching device responsive to the condition of fusible element

33
337/8

Manually operable mechanical device

16
337/9

Knife or blade switch

7
337/10

Rotary or reciprocating mechanism

10
337/6

With automatic circuit-interrupting device

40
337/7

Multiphase of multipole

8
337/11

With multiple circuit connector device (e.g., multiple mechanical)

4
 
 
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