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Class Information
Number: 219
Name: Electric heating >
Description: This class includes all those devices commonly known as electric heaters, electric-heating metal working apparatus, electrically-heated tools and instruments. Processes are classified with the apparatus unless otherwise indicated by the subclass title.


Class Number Class Name No. of Patents
219/764

Capacitive dielectric heating

7
219/765

Bonding

67
219/769

Container sealing

41
219/767

Die embroidery

13
219/768

Sewing machine type

3
219/766

Shoe

3
219/780

Specific electrode configuration

111
219/770

Specific heating application

67
219/772

Fluent material

45
219/771

Food

59
219/773

Sheet (e.g., board, etc.)

28
219/778

With power supply system

44
219/779

Condition responsive

50
219/774

With workpiece support

15
219/775

Conveyor

33
219/776

Multiple stations

16
219/777

Pressure applicator (e.g., clamp, etc.)

44
219/200

Heating devices

84
219/385

Combined with container, enclosure, or support for material to be heated

411
219/420

Crucible or furnace type (i.e., adapted to hold meltable material)

35
219/421

Melting pot

170
219/425

With current or voltage control means

21
219/422

With plural separate heating units

40
219/423

With protection means for heating unit or switch

1
219/424

With resistance heating element surrounding or embedded within walls of container

91
219/426

With significant heating unit structure or composition

47
219/427

Container comprises resistance heating element

15
219/469

Cylindrical or roller-type support for material to be heated

341
219/471

With external electrical circuit completion means

69
219/470

With plural heating units

88
219/415

Deep well

27
219/416

Convertible

3
219/418

With adjustable position heating unit or units

6
219/419

With current control or external circuit opening or closing means

15
219/417

With plurality of separate heating units

12
219/443.1

Exposed horizontal planar support surface for material to be heated (e.g., hot plate, etc.)

97
219/450.1

For direct contact with food (e.g., grill, griddle, etc.)

64
219/463.1

Formed by tubularly shaped heating unit

36
219/464.1

Having plural tubular heating units

17
219/457.1

Having direct manually actuated electrical switch

56
219/458.1

Having electrical connection

55
219/459.1

Receptacle (e.g., socket, an insulator block, a terminal block, etc.)

34
219/446.1

Having sensor

68
219/447.1

Responsive to presence of material (e.g., food, a cooking vessel, etc.)

57
219/448.11

Responsive to temperature

131
219/448.19

By rod or wire in a tube (e.g., thermo-cutoff probe, etc.)

50
219/448.12

Having microprocessor to control output of the heating device

57
219/448.13

Of material (e.g., food, a cooking vessel, etc.)

23
219/448.16

Using bimetallic member-type sensor

3
219/448.15

Using temperature expansible fluid-type sensor

5
219/448.14

Using thermistor-type sensor

11
219/448.17

Of the exposed horizontal planar support surface

60
219/448.18

Using bimetallic member-type sensor

8
219/451.1

Having support for a heating unit

55
219/453.11

Allowing heating unit movement

14
219/453.12

Enabling the exposed horizontal planar surface to conform to material having other than a planar surface

4
219/453.13

Using hinge for tilting or pivoting

2
219/453.14

Of pintle and gudgeon type

8
219/453.15

Having an axis at an acute or obtuse angle to the exposed horizontal planar surface

1
219/454.11

Bracket having a hub and three or more angularly spaced horizontal projections (e.g., a spider, etc.)

6
219/454.12

Having means to secure to the heating unit or a surrounding support

9
219/452.11

Frame, casing, or housing (e.g., range top, stove top, countertop, etc.)

72
219/452.13

Convertible (e.g., to an oven, to storage, etc.)

17
219/452.12

Supporting an imperforate exposed horizontal planar surface to overlie the heating unit (e.g., cooktop, etc.)

71
219/455.11

Pan or cup (e.g., a drip pan, etc.)

23
219/455.12

Reflector-type

18
219/456.1

Ring having a flange overlaying hole in a surrounding support surface

17
219/449.1

Heating by convection

22
219/465.1

Heating element contacting planar underside of the exposed horizontal planar support surface (e.g., sheet metal, etc.)

81
219/466.1

Foil or film-type of heating element

64
219/467.1

Support for the heating element

44
219/460.1

Heating element gapped from underside of the exposed horizontal support surface (e.g., ceramic plate, radiation-type, etc.)

113
219/462.1

Plural heating elements

108
219/461.1

Support for the heating element

77
219/468.1

Heating element is embedded in the exposed horizontal planar support surface

50
219/468.2

Heating element is in a groove formed on underside of the exposed horizontal planar support surface (e.g., cast metal plate, etc.)

58
219/444.1

Material is an electronic semiconductor device

290
219/445.1

With indicator

110
219/390

Muffle-type enclosure

695
219/391

Oven type

125
219/392

Combined with additional material support

125
219/393

Oven performs plural diverse functions

70
219/402

With casing or support for heating unit or units

64
219/404

Hinged or adjustable (within the heated enclosure)

53
219/405

Including heat energy reflecting or directing means

551
219/403

Retractable or detachable (from heated enclosure)

62
219/412

With current or voltage control or regulating means

93
219/413

Automatically responsive to condition of heating area

263
219/399

With heat energy transfer, distribution, or accumulator means

84
219/400

By convection

791
219/409

With heating unit structure or composition

36
219/411

With infrared generating means

649
219/410

With plural section heating element

19
219/394

With plural ovens

56
219/395

With plurality of separate heating units

76
219/397

Of different resistive values

15
219/396

Of diverse construction or functioning in diverse manners

47
219/398

Selectively energized

74
219/406

With resistance heating means surrounding heating area

44
219/407

Embedded within or between walls of container

64
219/408

With resistance heating unit or units fixed enclosed by or located within heating area

54
219/401

With steam generating means

308
219/414

With switch or other external circuit completing means

58
219/428

Plural containers

66
219/386

Portable or mobile

504
219/387

Food conveying type (e.g., lunch box)

117
219/389

Revolving enclosure

66
219/388

With means whereby material to be heated may be passed continuously through heated area (e.g., conveyor)

736
219/429

With vessel and stand

62
219/432

Vessel separable from stand

224
219/435

With external electrical circuit connection or disconnection means

77
219/430

With heat storage or transfer means

110
219/436

With heating unit attaching or support means

92
219/437

Immersible

93
219/433

With heating unit unitary with or attached to the stand

214
219/434

Adjustable relative to vessel or stand

20
219/431

With pressure generating or maintaining means

24
219/438

With vessel

173
219/439

With heat storage or transfer means

117
219/440

With pressure generating or maintaining means (e.g., pressure cooker)

46
219/441

With temperature or current control means

206
219/442

Adjustable

70
219/201

Combined with diverse-type art device

312
219/211

Apparel

201
219/212

Bed covering (e.g., blanket)

212
219/217

Chair, bed, or other body-supporting means

169
219/209

Electrical devices

300
219/210

Crystal or other vibratory device

71
219/220

Light means

71
219/219

Mirror

143
219/216

Printing or reproduction device

1636
219/215

Shoe machinery

18
219/213

Static structure (e.g., building pavement, etc.)

267
219/218

Table or cabinet

59
219/202

Vehicle or vehicle component

452
219/205

Motor or engine

183
219/207

Carburetor

53
219/206

Manifold

84
219/208

Radiator or cooling system

56
219/204

Steering device

57
219/203

Windshield or window

420
219/214

Vending, dispensing, or display device

116
219/243

Combined with pressure application means

271
219/244

Rotatable

44
219/245

Sole plate-type pressure application means (e.g., flatiron)

64
219/246

Combined with stand

8
219/247

With complementary electrical connector means to external circuit terminating in stand

28
219/249

Convertible

11
219/259

Supporting devices

18
219/248

With condition-responsive indicator

20
219/256

With electrical circuit completion or terminal structure

17
219/257

Automatically operated

20
219/258

With heat storage, exchange, or reflector means

12
219/254

With heating unit structure

26
219/255

Plural heating units

19
219/250

With power supply, voltage or current-control means

32
219/251

Thermally responsive

33
219/252

Adjustable

17
219/253

Comprising fusible metal, expansible liquid, or bar means

17
219/383

Electric arc-type devices

67
219/384

With perforating or disintegrating means

55
219/472

Plural functions simultaneously or convertible

20
219/474

To diverse-type electric heating device

14
219/473

To nonheating device

10
219/476

Plural separate heating devices

33
219/479

Diverse type (each electric)

8
219/480

Selectively activated

49
219/477

With common power supply or current control means

28
219/478

With unitary housing, support, or casing means

26
219/260

Resistive element: igniter type

51
219/261

With blower, suction, or other ignition facilitating means

9
219/262

With current control or external circuit connection or disconnection means

17
219/263

Automatic

23
219/264

Thermally responsive

29
219/265

Bimetallic or other flexible means

44
219/266

Resilient means

2
219/267

With housing casing or support means for igniter unit

117
219/270

With igniter unit structure

353
219/269

With indicating means

25
219/268

With source of power or current

22
219/221

Tool or instrument

83
219/222

Hair heaters

188
219/224

Electrolytic

1
219/223

Singeing apparatus

29
219/226

With heated casing

11
219/225

With heated clamp means (e.g., hand-held)

143
219/227

Hand-manipulative

150
219/242

Supports

121
219/228

With heat distribution means (i.e., heat applied to extended area)

80
219/229

With heated tip or other heat concentration means (i.e., heat applied to localized area)

167
219/236

Coil or loop-type heating element

47
219/238

Detachable tip

54
219/239

Threaded

13
219/237

Integral with tip

22
219/231

Convertible

14
219/232

Internal arc-type heating unit

2
219/233

Tip in electrical circuit

106
219/235

With transformer secondary

17
219/234

Work in circuit

37
219/230

With tip cooling, clamping, or lighting means

222
219/240

With power supply, voltage or current control, or connection and/or disconnection means

110
219/241

With thermal control means

108
219/507

With current connection and/or disconnection means (e.g., switch)

83
219/509

Automatically operated

98
219/519

Including electromagnetic relay means

71
219/518

Responsive to weight, position, or presence of body to be heated

220
219/510

Thermally responsive

130
219/515

Adjustable means

11
219/513

Comprising expansible fluid (e.g., alcohol or mercury)

33
219/512

Comprising linearly expansible metal

86
219/517

Fusible link

78
219/516

Insertable into or in direct contact with heated material

25
219/511

With auxiliary heating means for thermal switch means

88
219/514

With solenoid means

15
219/508

Plural means intermittently or selectively operated

312
219/520

With heater-unit housing, casing, or support means (e.g., frame and single sheet)

64
219/524

Comprising hinged or separable compartment (e.g., waffle iron type)

101
219/525

With plurality of or sectional heating means

45
219/528

Flexible or resilient (e.g., warming pad)

525
219/529

Cloth or other fabric

191
219/523

Housing, casing, or support insertable into material or space to be heated (e.g., immersion type)

323
219/522

Housing, casing, or support performs plural diverse functions (e.g., window)

269
219/521

Including or comprising holding or support means for material to be heated

579
219/533

Portable (e.g., with handle)

126
219/534

Rigid tubular housing, casing, or support (e.g., flattened tube)

84
219/535

Specially formed or adapted to fit material to be heated (e.g., a pipe)

529
219/530

With heat storage or transfer means (vanes)

302
219/536

With heating unit mounting or attaching means

296
219/537

Plural units combined with single casing housing or support

98
219/526

With means for attaching housing or casing to an external device (e.g., magnetic or vacuum)

37
219/527

Body-supported (e.g., human body)

84
219/532

With open frame or grid-type support

133
219/531

With thermal insulation or cooling means

56
219/538

With heating unit structure

92
219/539

Comprising plural separate and distinct resistive elements

93
219/546

Core, sheath, or support means for heating element

132
219/547

Comprising material to be heated

112
219/548

Of particular construction or material

375
219/549

Flexible

528
219/551

Gasket or wafer-type insulator means

16
219/550

Sectional or interconnectable insulator means

47
219/552

Heating element structure

312
219/553

Of particular construction and/or material (e.g., infrared generator)

626
219/540

With heat storage or transfer means (e.g., fins or plate)

217
219/542

With resistive-element attaching, securing or electrical insulation means

209
219/543

Comprising coating printed or deposited on core sheath or support means

634
219/544

Element embedded within or completely surrounded by core, sheath, or support means

787
219/545

Resistive element interwoven with fabric support

112
219/541

With terminal or connector means (e.g., to external circuit means)

658
219/475

With plural heat utilization means (single heater)

10
219/482

With power supply and voltage or current regulation or current control means

90
219/490

Automatic regulating or control means

122
219/491

Combined (e.g., electromechanical and thermal)

93
219/492

Comprising timing or cycling means

702
219/493

Electromechanical

66
219/504

Comprising variable resistance means

143
219/505

Comprising nonlinear or negative temperature coefficient resistance means

721
219/497

Comprising voltage and/or current measuring and comparing or combining means

1116
219/499

Including bridge means

108
219/498

Including follow-up servo means

5
219/500

Including electron or glow-discharge tube means

0
219/501

Including semiconductor means (e.g., transistor)

534
219/503

Inductive reactor means (e.g., auto transformer)

13
219/496

Pressure responsive

47
219/494

Thermally responsive

847
219/495

Thermomagnetic

19
219/502

Utilizing light-sensitive and/or responsive means

146
219/506

With signal or indicating means

567
219/489

Combined manual and automatic regulating or control means

49
219/483

Controlling or regulating plural separate distinct heating resistance elements(i.e., one control system for all elements)

326
219/484

Of diverse resistance characteristics or value

20
219/486

Selectively, sequentially or alternately

372
219/487

With indicator means

39
219/485

With total current or power limiting means

118
219/488

With voltage limitation, conversion, or adapting means

22
219/481

With protective means for heater

166
219/600

Inductive heating

20
219/602

Metal working

51
219/603

Bonding

99
219/615

Brazing (e.g., cladding, etc.)

67
219/604

Container sealing

43
219/606

Ring

15
219/616

Soldering

44
219/607

Tube (i.e., pipe)

29
219/609

Layering (e.g., coating, lining, etc.)

25
219/611

Plural (e.g., end to end, etc.)

38
219/612

Seam bonding

25
219/614

With guiding device

18
219/613

With impeder

9
219/608

With electrical control (e.g., speed, temperature, gaging thickness, etc.)

20
219/610

With preheating or postheating

13
219/617

Welding

85
219/605

Wire (e.g., cable, etc.)

29
219/635

Specific heating application

299
219/640

Gear

37
219/642

Ring or link

15
219/637

Rod

31
219/639

Irregular (e.g., camshaft, etc.)

65
219/638

Semiconductor

34
219/646

Slab (e.g., ingot, etc.)

32
219/645

Strip (e.g., sheet, etc.)

129
219/643

Tube (i.e., pipe)

52
219/644

Interior surface

34
219/641

Valve

17
219/636

Wire (e.g., cable, etc.)

29
219/672

Specific inductor configuration

209
219/674

Cylindrical coil

121
219/675

Planar coil

75
219/673

U-coil section

79
219/677

With cooling arrangement

70
219/676

With inductor support

150
219/601

With diverse-type heating

71
219/618

With heat exchange

70
219/633

Bonding (e.g., nonmetallic, etc.)

255
219/620

Cooking

55
219/624

Core or coil structure

100
219/625

Intermediate member condition responsive

59
219/626

Load sensing

102
219/627

Temperature

56
219/621

Utensil (e.g., pot, pan, etc.)

84
219/622

With support

113
219/623

Having cooling device

22
219/628

Fluid or liquid heater

82
219/629

By tube (i.e., pipe)

46
219/630

Core or coil structure

62
219/631

Core rotation

25
219/619

Roller (e.g., godet, etc.)

299
219/634

Susceptor

231
219/632

With cooling arrangement

124
219/660

With power supply system

114
219/661

Power switching

87
219/663

Condition responsive

133
219/664

Input monitoring

34
219/665

Load sensing

157
219/667

Temperature

170
219/666

With tuning

34
219/662

Plural load inductors

111
219/669

Polyphase

12
219/668

With protection

38
219/671

With plural load inductors

83
219/670

With specific transformer

165
219/647

With workpiece support

70
219/653

Conveyor

54
219/654

Charge or discharge

26
219/657

Curve path

9
219/658

Lift (i.e., vertical movement)

23
219/655

Multiple stations

17
219/656

Plural heating zones

117
219/651

Gas environment

82
219/648

Levitation

24
219/649

Materials

56
219/659

Pressure applicator (e.g., clamp, etc.)

99
219/652

Rotation of workpiece

89
219/650

With monitoring (e.g., regulating, etc.)

48
219/50

Metal heating (e.g., resistance heating)

44
219/148

Bonding

19
219/121.11

By arc

62
219/129

Brazzing or soldering

27
219/122

Control of arc direction

15
219/123

Magnetic

109
219/138

Electrode holder (e.g., spring biased tong)

38
219/142

Plunger jaw (e.g., screw actuated)

4
219/143

Spring biased

2
219/139

Plural adjustable electrodes (e.g., hand torch)

2
219/144

Positive grip

16
219/140

Spring jaw (e.g., sprung by electrode)

3
219/141

With separate actuator

2
219/130.1

Including arc-power supplies

158
219/132

Remote control

91
219/130.4

With arc ignition and stabilization arrangements

122
219/130.21

With automatic output control (e.g., shortcircuit, infrared)

227
219/130.32

Responsive to arc current only

66
219/130.31

Responsive to arc voltage only

66
219/130.33

Responsive to both arc voltage and arc current

89
219/133

With generator (e.g., gas engine driven)

93
219/134

Electric motor driven

7
219/130.5

With predetermined time variation of arc voltage or current (e.g., programmed)

108
219/130.51

Pulsating or periodic output

229
219/130.01

Including circuits for monitoring arc parameters

174
219/127

Spot arc bonding (e.g., arc riveting)

45
219/121.12

Using electron beam

110
219/121.21

Chamber

61
219/121.23

Monitoring

17
219/121.22

Sealing

43
219/121.18

Cutting

29
219/121.19

Etching or trimming

53
219/121.2

Methods

71
219/121.15

Deposition (e.g., sputtering)

63
219/121.16

Melting

37
219/121.17

Methods

57
219/121.35

Methods

110
219/121.24

Nonvacuum environment

17
219/121.28

Position control

47
219/121.3

Condition responsive

36
219/121.29

Swept or scanned

40
219/121.34

Power supply

47
219/121.25

Shaping

45
219/121.27

With electrode or gun structure

61
219/121.26

With focusing

35
219/121.13

Welding

124
219/121.14

Methods

201
219/121.33

With fluid supply (e.g., shielding gas or coolant)

31
219/121.31

Workpiece position control

60
219/121.32

Condition responsive

17
219/121.6

Using laser

723
219/121.61

Beam energy control

313
219/121.62

Condition responsive

260
219/121.78

Beam position control

415
219/121.81

Condition responsive

81
219/121.79

Path adjustment

154
219/121.8

Swept or scanned

286
219/121.86

Chamber

70
219/121.67

Cutting

675
219/121.68

Etching or trimming

761
219/121.69

Methods

1038
219/121.7

Hole punching

364
219/121.71

Methods

444
219/121.72

Methods

437
219/121.65

Melting

234
219/121.66

Methods

368
219/121.85

Method

907
219/121.76

Multiple beams

282
219/121.77

With sing source

239
219/121.73

Shaping

330
219/121.75

With lens

273
219/121.74

With mirror

337
219/121.63

Welding

798
219/121.64

Methods

924
219/121.84

With fluid supply

519
219/121.83

With monitoring

458
219/121.82

Workpiece position control

510
219/121.36

Using plasma

386
219/121.54

Control systems

325
219/121.57

Arc ignition

231
219/121.56

Arc positioning

64
219/121.55

Gas supply

119
219/121.39

Cutting

209
219/121.4

Etching

142
219/121.41

Methods

157
219/121.42

Rate control

44
219/121.43

With chamber

468
219/121.44

Methods

156
219/121.37

Melting

98
219/121.38

Methods

65
219/121.59

Methods

448
219/121.48

Plasma torch structure

580
219/121.53

Consumable electrode

30
219/121.49

Cooling system

166
219/121.52

Electrode structure

524
219/121.51

Gas supply system

333
219/121.5

Nozzle system

338
219/121.47

Spray coating

249
219/121.45

Welding

129
219/121.46

Methods

134
219/121.58

With work holder

106
219/136

Welding

330
219/137R

Process

425
219/137PS

Power supply

289
219/137WM

Weld metal composition

200
219/124.1

With automatic positioning of arc

41
219/124.5

In response to the transfer rate of the weld metal

3
219/124.4

In response to work position

8
219/124.22

In response to work shape

48
219/124.34

By using probe means

320
219/124.31

Having carriage supported by work

30
219/124.33

Having electrode angle control

31
219/124.32

Having variable welding head travel rate (e.g., gravity feed)

11
219/124.21

Including work cutting

11
219/137.2

With consumable electrode device

108
219/137.31

Gun

84
219/137.62

Having cooling means

51
219/137.61

Having filler electrical contact structure

69
219/137.41

Having fume extractor

44
219/137.42

Having gas flow limiting shape (e.g., gas diffuser)

47
219/137.44

Having integral electrode guide

23
219/137.51

With flexibility

15
219/137.52

With wear resistant liner

7
219/137.43

Having spatter shield

36
219/137.63

Having supply connection means (e.g., quick disconnect)

46
219/137.8

Including filler wire deforming

17
219/137.7

Rate control

42
219/137.71

Circuits

140
219/137.9

Supply cables (e.g., for current, shielding gas, coolant)

53
219/124.02

With gap control

54
219/124.03

By arc voltage

30
219/124.01

With ignition by retraction

11
219/125.1

With predetermined welding operation

239
219/125.11

For closed path welding (e.g., circumferential welding)

215
219/125.12

For oscillating electrode welding

153
219/126

Vertical work (e.g., horizontal seam in vertical wall)

37
219/128

With working of bonding metal (e.g., by peening)

13
219/51

Chain

14
219/52

Methods

9
219/68

Cutting or disintegrating (e.g., machining engraving)

159
219/69.1

Electric arc

95
219/69.11

Electric spark machining

183
219/69.13

Circuits

311
219/69.14

Dielectric composition and purification

228
219/69.15

Electrodes

306
219/69.16

Gap spacing control

236
219/70

Hand-type tools

72
219/69.17

Methods

624
219/69.18

Pulse

190
219/69.19

Safety circuits

63
219/69.2

Vibrating electrodes or workpiece

233
219/69.12

Wire cutting

696
219/155

Endless strip

33
219/78.01

For bonding with pressure (e.g., resistance welding)

71
219/85.1

Brazing or soldering

61
219/85.16

Electrically heated tool (e.g., electrodes, heaters, etc.)

94
219/85.2

Fluxes or solders

26
219/85.17

Furnaces or enclosures

18
219/85.19

Machine for predetermined operation

30
219/85.22

Methods

89
219/85.21

Solder preforms

2
219/85.12

Utilizing radiant energy

77
219/85.13

Methods

59
219/85.18

Wire lead bonders

90
219/85.14

With filler metal in circuit

27
219/85.15

Methods

43
219/101

Butt

68
219/102

Extended seam

13
219/104

Methods

44
219/106

By use of a bridging member (e.g., splice plate)

14
219/107

End or edge to surface

56
219/105

Preparation of edges

36
219/103

One part fed

31
219/78.02

By solid-state bonding (e.g., diffusion)

33
219/86.1

By spot bonding

68
219/88

Electrode positionable along fixed bus bar (e.g., reaction bar type)

5
219/89

Fluid pressure actuated electrode

91
219/86.9

For one-face welding

36
219/91.2

Methods

100
219/92

Current limitation (e.g., by interposed insulation)

30
219/94

By interposed button

19
219/93

By localized projection

114
219/91.21

Of welding through insulation

45
219/91.22

With additional heating to same spot

4
219/91.23

With work deforming

24
219/87

Multiple spot type

82
219/90

Plier or tong type

54
219/91.1

With condition responsive control of the welding process

51
219/86.21

With hand-manipulative portable devices

24
219/86.22

With separately applied pressure and heat

12
219/86.25

With significant electrode support

125
219/86.33

Having adjustment means

25
219/86.7

For predetermined welding operation

49
219/86.41

With condition responsive control means

81
219/86.51

Responsive to pressure

36
219/86.61

By force balancing

12
219/86.31

Having cooling means

33
219/86.8

Having interchangeable welding electrodes

37
219/86.32

Having magnetic force actuated electrode

13
219/86.23

With welding pressure controlled by the work support

4
219/86.24

With work orientation means

54
219/119

Electrodes (e.g., structure)

232
219/120

With cooling

61
219/97

Flash

63
219/100

Methods

38
219/98

Stud

215
219/99

Methods

133
219/78.11

Honeycomb

13
219/78.12

Methods

17
219/117.1

Methods

261
219/118

Particular material (e.g., dissimilar, aluminum)

153
219/95

Percussive

17
219/96

Methods

8
219/81

Roller electrode

69
219/84

Electrode structure

47
219/83

Methods

66
219/82

Roller moves over work

27
219/108

Systems of current supply

54
219/110

Controlled in response to current, voltage, or temperature

272
219/111

Repeat or interrupted current systems (e.g., multiple welds, multiple heated weld)

19
219/112

Stored energy discharge (e.g., inductive)

9
219/113

Condenser discharge

38
219/115

Synchronous switching on and off

6
219/109

With indicator (e.g., recorder)

149
219/114

With space-discharge tube control (e.g., thyratron, ignitron)

35
219/116

With transformer

58
219/78.13

With additional heating device

8
219/79

With conveyer for workpiece

80
219/80

Spot bond

54
219/78.14

With work cleaning means

7
219/78.15

With work cutting means

29
219/78.16

With work deforming means (e.g., tube sealing)

34
219/76.1

For deposition welding (e.g., coating or building up)

97
219/76.14

By electric arc

197
219/76.16

Plasma

218
219/76.15

With nonconsumable electrode

54
219/76.17

By resistance heating

14
219/76.13

By spark discharge

44
219/77

Cutting edges of tools

27
219/76.12

Of multiple distinct layers

52
219/76.11

With cooling means

26
219/71

Liquid electrode

5
219/162

Methods

14
219/72

Nonatmospheric environment at hot spot (e.g., resistance weld under oil, vacuum)

114
219/74

Gas supply (e.g., by ingredient of electrode, by external source)

289
219/75

Nonconsumable electrode (e.g., atomic hydrogen)

464
219/73

Slag (e.g., submerged arc)

81
219/73.1

Including electroslag welding

51
219/73.11

For coating

13
219/73.2

With granular flux supply

32
219/73.21

For deposition welding

27
219/59.1

Of cylinders (e.g., pipes and tubes)

115
219/64

Container (e.g., cans)

109
219/60R

Electric arc

105
219/61

Methods

189
219/60A

Rotatable tube welders

143
219/60.2

Tube sheet welding

59
219/61.1

Having internal support means

22
219/61.12

With cleaning means

1
219/61.13

With edge guidance means

11
219/61.11

With forming means

13
219/62

Helical seam

17
219/66

Inside electrode

30
219/65

Nonrotary electrode (e.g., oscillating)

2
219/67

Resistance heating methods

35
219/63

Rotary transformer part

1
219/61.6

Using three or more electrodes

4
219/61.2

Utilizing high frequency resistance heating

42
219/61.4

With adjustable electrode means

10
219/61.5

With condition responsive control of the welding process

22
219/61.7

With cooling means

24
219/61.3

With edge guidance means

18
219/53

Rail bond

24
219/54

Arc weld

26
219/55

Resistance weld methods

12
219/157

Rivets

4
219/156

Rods and bars

15
219/146.1

Weld rod composition

96
219/146.23

Containing nickel, chromium, and iron

83
219/146.24

Metal deoxidizer or denitrogenizer

36
219/146.3

Particulate

31
219/146.21

Nonconsumable

19
219/146.22

Nonferrous

49
219/146.31

Particulate

36
219/146.32

Alloying

22
219/146.41

Nickel or chromium

36
219/146.51

Containing carbide

15
219/146.52

Shielding

17
219/147

With eye shield

45
219/145.1

Weld rod structure

51
219/145.23

Flux coated

56
219/145.31

Partially

11
219/145.32

With wire wrap

4
219/145.22

Flux cored

108
219/145.21

Nonconsumable

29
219/145.41

Nonmetal cover

5
219/56

Wire, rod, or bar bonding

108
219/57

Butt bonding (e.g., welding)

17
219/58

Methods

65
219/56.1

Of wire leads

73
219/56.21

By microbonding

91
219/56.22

Methods

155
219/149

With forging or shaping (e.g., of powder)

28
219/153

Bending or twisting

12
219/154

Subsequent to heating

6
219/150R

Upsetting

6
219/151

Anvil electrode

3
219/150V

Riveting

6
219/152

Simultaneous with heating

13
219/158

Work holders

88
219/161

Clamp

94
219/160

Mandrels (e.g., anvil)

60
219/159

Rotating supports

59
219/678

Microwave heating

120
219/725

Cookware (e.g., vessel, utensil, etc.)

179
219/727

Expandable

101
219/734

With cover

160
219/735

Having vent

128
219/733

With drainage

55
219/728

With field modifier

126
219/729

Shielding

144
219/726

With food mixer

28
219/730

With heat exchange (e.g., susceptor, etc.)

400
219/731

By fluent material (e.g., steaming, boiling, or frying, etc.)

82
219/732

With stand or handle

233
219/756

Enclosed cavity structure

327
219/758

With cavity illumination

37
219/757

With cooling or ventilation

351
219/745

Field modification

113
219/752

By load support movement

58
219/754

Horizontal (e.g., turntable, etc.)

166
219/755

Portable

36
219/753

Horizontal and vertical

40
219/751

Mixer (e.g., rotating stirrer, etc.)

89
219/746

With power feed structure

210
219/747

Phase shifting

15
219/748

Radiator (e.g., antenna, etc.)

159
219/749

Rotating

73
219/750

With tuning or particular modes

148
219/687

Fluid heater

134
219/689

Beverage (e.g., coffee, etc.)

69
219/688

Water

48
219/686

Gas environment (e.g., pressurized, etc.)

153
219/762

Load support

318
219/763

Shelf

70
219/736

Radiation protection

64
219/737

With leakage detector

15
219/738

With leakage prevention

109
219/744

Absorption

53
219/739

Door assembly

86
219/741

With choke or seal

57
219/743

Choke cavity cover

23
219/742

Slotted choke

38
219/740

With screen or window

41
219/698

Tunnel furnace

17
219/700

Conveyor

114
219/701

Plural heating zones

78
219/699

With leakage suppression

42
219/690

Waveguide applicator

90
219/695

Input power port arrangement

108
219/697

Plural feed

97
219/696

With tuning

94
219/691

Slotted

44
219/693

Having load passage

98
219/692

Meander (e.g., zigzag, etc.)

17
219/694

With dummy load

17
219/702

With control system

280
219/703

Defrost

75
219/722

Interlock circuitry and structure

68
219/723

With additional safety feature

64
219/724

With latch assembly

39
219/704

Load condition sensor

85
219/706

By ultrasonic or acoustic

22
219/709

Field intensity/reflection

76
219/707

Gas or vapor

133
219/705

Plural diverse types

84
219/710

Temperature

251
219/711

By infrared

77
219/712

Probe

62
219/713

Wireless type

15
219/708

Weight

91
219/715

Power switching

150
219/718

Having duty cycle

98
219/717

Plural power supplies

30
219/716

With detector

134
219/714

Remote (e.g., card, etc.)

81
219/721

Starting circuitry

50
219/720

With display or alarm

213
219/719

With timer

150
219/679

With diverse device

230
219/680

With diverse-type heating

81
219/681

Convection heating

159
219/683

Gas burner

22
219/682

Steam generating

52
219/684

Tunnel type

14
219/685

Resistive heating

208
219/759

With heat exchange (e.g., susceptor, etc.)

341
219/761

With specific generator

85
219/760

With specific transformer

45
 
 
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