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Class Information
Number: 429
Name: Chemistry: electrical current producing apparatus, product, and process >
Description: This class is the generic class for devices which produce an electrical current by means of a chemical reaction or change in physical state (e.g., from liquid to gas, etc.). Also included are the following subject matter not provided for elsewhere.


Class Number Class Name No. of Patents
429/121

Adjuncts in combination with or for connection to an external electrical electric current carrying member of a battery other than terminal protectors, e.g., terminal adapter, caps, lifters, etc. and connectors per se

227
429/96

Cell support for removable cell

326
429/99

For plural cells

483
429/98

Having disparate support structure, e.g., eyeglass temple, etc.

181
429/97

Having switch or interlock means

317
429/100

Support or holder per se

593
429/122

Current producing cell, elements, subcombinations and compositions for use therewith and adjuncts

211
 

Current producing cell, elements, subcombinations and compositions for use therewith and adjuncts

 
429/163

Cell enclosure structure, e.g., housing, casing, container, cover, etc.

524
429/176

Container only

407
429/175

Cover only

270
429/164

Cylindrical unit cell type, e.g., cup container electrode, tubular electrode, casing, etc.

277
429/165

Having centrally located anode, i.e., "inside-out" type cell

70
429/174

Having seal material

311
429/166

Reactive metallic can, cup or tubular electrode

60
429/167

Having outer nonreactive housing, casing, or jacket

68
429/170

Electrical contact terminal plate or cap clamped to or embedded in a portion of the housing

67
429/168

Having metallic or conductive outer casing

34
429/169

Outer casing electrically connected to reactive electrode

32
429/171

Having seal

111
429/172

Mechanical clamping pressure seal

58
429/173

And sealing mass or compound

35
429/186

Having cell assembly support feature

105
429/187

Having handle or lifting device

63
429/185

Having seal feature

519
429/178

Having terminal

400
429/181

And terminal seal

276
429/183

Having threaded compression means

38
429/182

Means to stop rotational movement between cover and terminal

32
429/184

Sealing mass or compound

80
429/179

On or through a side of housing

154
429/180

Sealing sleeve embedded or molded in cover

89
429/177

Housing or casing with plural covers

123
429/126

Cell with protective layer on electrolyte

37
429/128

Electrode or plural tablets, pellets or discs

94
429/208

Electrode support for suspending or holding an electrode in a battery

69
429/209

Electrode

337
 

Electrode

 
429/210

Bipolar type

235
429/218.1

Chemically specified inorganic electrochemically active material containing

767
429/231.4

Alkalated carbon, graphite, or carbonaceous component is active material

233
429/231.1

Alkalated transition metal chalcogenide component is active material

586
429/231.3

Alkalated cobalt (co) chalcogenide

386
429/231.2

Alkalated vanadium (v) chalcogenide

166
429/231.9

Alkali metal component is active material

182
429/231.95

The alkali metal is lithium

984
429/231.6

Alkaline earth metal or magnesium (mg) component is active material

226
429/222

Cadmium component is active material

128
429/231.8

Carbon, graphite, or carbonaceous component is active material

624
429/220

Copper component is active material

276
429/231.7

Halogenated carbon, graphite, or carbonaceous component is active material

92
429/218.2

Hydrogen storage material is active material

258
429/221

Iron component is active material

417
429/225

Lead component is active material

332
429/226

Alloy

69
429/228

Lead oxide

153
429/227

Metal sulphate or carbonate

34
429/224

Manganese component is active material

956
429/223

Nickel component is active material

1011
429/219

Silver component is active material

270
429/231.5

Vanadium (v), chromium (cr), niobium (nb), molybdenum (mo), titanium (ti), or tungsten (w) component is active material

470
429/229

Zinc component

475
429/230

With mercury

38
429/231

Zinc oxide

63
429/233

Grid or holder for active material

390
429/234

Grid or holder has nonconducting component portion thereof

153
429/239

Having conductive receptacle or mechanical locking means for the active material

22
429/240

Locking means being bendable tabs

6
429/238

Having longitudinal electrically conducting tubes or cores

45
429/235

Having particulate or fibrous porous mass including a sintered mass

141
429/236

Having coating in the pores

81
429/237

Having support or reinforcing member

45
429/245

Materials chemically specified

450
429/241

Open mesh or perforated plate

187
429/242

Expanded metal

96
429/243

Having members in a face plane of the grid being offset from members in the plane of the opposite face

41
429/244

Distinct elements or members intermediate the face members

31
429/212

Having active material with organic component

328
429/217

Organic component is a binder

470
429/213

Organic component is active material

428
429/214

Organic component is an antioxidant

17
429/215

Organic component is an expander or addition agent for improving electrode capacity or plating characteristics

106
429/216

Dendrite or "tree" forming inhibitor

43
429/211

Having connector tab

295
429/232

Having inorganic binder or conductive filler

406
429/246

With insulating separator, spacer or retainer means

127
429/162

Flat-type unit cell and specific unit cell components

456
429/123

Having means to interchangeably connect plural individual cells or means to conectively support cell to current seeking apparatus

216
429/188

Include electrolyte chemically specified and method

253
 

Include electrolyte chemically specified and method

 
429/206

Alkaline

427
429/207

With salt or acid component

81
429/344

Chemically specified inorganic solvent other than water

53
429/345

Sulfur or phosphorus in the inorganic solvent

119
429/346

Sulfur dioxide containing inorganic solvent

50
429/324

Chemically specified organic solvent containing

203
429/325

And chemically specified inorganic solvent

47
429/336

Hetero ring in the organic solvent

88
429/337

Oxygen is the only ring hetero atom in the hetero ring (e.g., dioxolane, gamma butyrolactone, etc.)

194
429/338

The hetero ring is a cyclic carbonate (e.g., ethylene carbonate, propylene carbonate, etc.)

260
429/339

Nitrogen containing organic solvent compound (e.g., acetonitrile, etc.)

137
429/341

Oxygen containing organic solvent compound

173
429/342

Acyclic carbonate solvent

101
429/343

Acyclic carboxylic acid ester solvent

46
429/326

Plural organic solvents (i.e., solvent mixture)

218
429/327

One of the organic solvents contains a hetero ring

31
429/328

Nitrogen is ring member of the hetero ring

85
429/329

Oxygen is ring member of the hetero ring

99
429/334

And acyclic oxygen or nitrogen containing solvent compound

29
429/335

The acyclic oxygen containing solvent compound is an acyclic ether

38
429/330

The hetero ring is a cyclic carbonate

205
429/332

And acyclic carbonate or acyclic carboxylic acid ester solvent

230
429/333

And acyclic ether solvent

111
429/331

Plural cyclic carbonate solvents

130
429/340

Sulfur containing organic solvent compound

129
429/202

Chromium containing

11
429/199

Halogen containing

471
429/200

Hydrogen containing

55
429/201

Ammonium

50
429/347

Organic solute component in aqueous electrolyte

83
429/189

Precursor composition

69
429/204

Sulphuric acid

133
429/205

Sulphate containing

36
429/300

The electrolyte is gelled

127
429/301

Carbohydrate or derivative containing (e.g., starch, cellulose, etc.)

16
429/303

Organic polymer containing

232
429/302

Silicon containing

48
429/304

The electrolyte is solid

244
429/321

Alkali metal containing component

99
429/322

The alkali metal is lithium

213
429/323

Lithium and halogen containing compound

128
429/319

Aluminum containing component (e.g., lialcl4, etc.)

56
429/320

The component is alumina (i.e., aluminum oxide)

146
429/306

Organic component containing

221
429/308

Carbohydrate or derivative

13
429/307

Chemically specified organic solute

186
429/316

Halogen containing polymer

131
429/310

Hetero ring containing polymer

76
429/311

Oxygen is a ring member of the hetero ring

46
429/312

The hetero ring is three membered

106
429/317

Oxygen containing polymer

283
429/313

Silicon containing polymer

73
429/314

Sulfur, nitrogen, or phosphorus containing polymer

229
429/315

Nitrogen and phosphorus in the polymer

44
429/309

Two or more polymers (i.e., polymer mixture)

169
429/318

Silver containing component

18
429/305

Temperature range of electrolyte operation or electrolyte processing is specified

45
429/203

With acid containing n or p constituent

56
429/161

Intracell assembly having cell electrode connector

250
429/149

Plural cells

137
429/151

Casing having interlocking structure

39
429/156

Complete cells

65
429/158

Having intercell connector

138
429/159

And common external casing, tray or clamp means

203
429/157

In end-to-end contact, e.g., stacked button-type cell, etc.

102
429/160

Having intercell connector

219
429/152

Individual cells connected in repeating contiguous layered units

160
429/153

Having unit enclosing housing

126
429/154

Having sectional component

45
429/155

Of tray, cup or dish shape in nested or telescopic relationship

17
429/150

With integral switch means

29
429/148

Plural housing having spacing means or channels for air circulation and short prevention

77
429/124

Printed cell type

55
429/129

Separator, retainer or spacer insulating structure (other than a single porous flat sheet, or either an impregnated or coated sheet not having distinct layers)

219
429/131

Having electrode enclosing feature

82
429/133

Cylindrical unit cell type, flat unit cell type or porous cup type

74
429/134

Paste or gel

17
429/135

With layer of material or spacing means

18
429/136

Envelope type

74
429/137

Coating on electrode

84
429/139

Having edge bond or seal

57
429/138

Having support frame or cover

13
429/132

Separating material in bulk form about electrode

19
429/140

Tubular type

58
429/141

Having plural layers of diverse material

23
429/146

Having electrode spacing projections

40
429/147

Projections are deformed portions, of a sheet material, i.e., corrugations, etc.

42
429/142

Having plural distinct components

109
429/144

Plural layers

194
429/145

Having defined porosity either functional or by size (i.e., semipermeable, permselective, ionpermeable, microporous, etc.)

134
429/143

Ribs or projections attached to sheet material

53
429/130

Insulator structure is only spacer of the rod, button, strip, or frame type

70
429/247

Separator, retainer, spacer or materials for use therewith

284
429/248

Having additive for effecting the charge capacity, life, etc., of a cell

104
429/249

Organic material

265
429/251

And inorganic material

130
429/252

Silicon containing

105
429/250

And wetting agent or surface acting agent

90
429/255

Natural or treated plant materials

27
429/253

Phenolic or thermosetting resin

59
429/254

Rubber or thermoplastic resin

238
429/125

Standard cell or counter emf type

4
429/127

Tape or flexible-type cell including tape fuel cells or subcombination thereof

188
429/11

Current production dependent upon temperature differential between a pair of electrodes

31
429/110

Deferred action type

41
429/118

Responsive to addition of liquid

67
429/119

Activated by immersion, e.g., sea water type

70
429/112

Responsive to heat

196
429/111

Responsive to light

293
429/113

Responsive to movement of electrode on contained electrolyte

31
429/115

Activated by explosive charge

14
429/114

Activated by spin or set back

17
429/117

By orientation of the cell

9
429/116

Frangible separation means

60
429/101

Fluid active material or two-fluid electrolyte combination having areas of nonmixture

488
429/102

Active material in molten state

47
429/103

With fused electrolyte, i.e., molten

164
429/104

With solid-state electrolyte

388
429/105

Active material in solution

283
429/109

Chromium containing material

17
429/106

Copper sulfate solution

8
429/107

Iron containing material

22
429/108

Nitrogen containing material

8
429/12

Fuel cell, subcombination thereof or methods of operating

687
429/27

Active material electrode-type cell or subcombination thereof

520
429/29

And chemically specified electrolyte material

107
429/28

Envelope cathode-type or subcombination thereof

36
429/22

Automatic control means

615
429/23

Electrical output dependent

391
429/25

Pressure dependent

315
429/24

Temperature dependent

425
429/40

Catalytic electrode structure or composition

914
429/44

Having an inorganic matrix, substrate or support

829
429/45

Of sintered particles

149
429/41

Having electrolyte matrix or barrier layer

475
429/42

Having organic constituent as part of the electrode

583
429/43

Organic catalyst

94
429/46

Chemically specified electrolyte

276
429/26

Having heat exchange means

1039
429/19

Having means for active material generation or regeneration

736
429/21

By electrical current

165
429/20

By heating or cooling

526
429/34

Housing member, seal, spacer or fluid distributing or directing means

1811
429/35

Having sealing feature

509
429/36

Having bonded seal, e.g., welded, adhesive, molded in situ, etc.

294
429/37

Having clamping means

151
429/38

Having support or spacers with fluid distribution means

978
429/39

And fluid directing means

775
429/18

Plural cells having means to reduce ionic short circuit

75
429/13

Process of operating

1086
429/14

Circulating or feeding electrolyte

109
429/15

Active material in electrolyte

122
429/16

Fused or molten electrolyte

145
429/17

Generating, regenerating or recycling reactant

978
429/30

Solid electrolyte

1119
429/33

Electrolyte composition chemically specified

890
429/32

Plural disc or modules

534
429/31

Tubular

228
429/8

Having disparate nonelectrical function

39
429/9

Having diverse cells or diverse removable cells in a support means

182
429/47

Having earth feature

6
429/2

Having living matter, e.g., microorganism, etc.

40
429/10

Having magnetic field feature

47
429/95

Having means for draining or removing electrolyte from a cell other than filler opening

18
429/66

Having means to accommodate electrode expansion

139
429/67

Having movable mechanical means to provide relative motion between electrode and electrolyte

38
429/68

Means moves electrode

48
429/69

Rotary motion

11
429/70

Means moves electrolyte externally of electrode chamber

87
429/1

Having polarity safety feature

111
429/3

Having pulse feature

22
429/72

Having specified venting, feeding or circulation structure (other than feeding or filling for activating deferred action-type battery)

250
429/80

Having (manual) electrolyte storage feeding a device

37
429/74

Having means to control electrolyte level when liquid is added, other than a visual reference point

18
429/77

By establishing an air lock

3
429/78

Liquid seal only

11
429/79

Movable valve structure supported within the filler opening

7
429/76

Float valve

16
429/75

For different levels

2
429/81

Having nonmovable means providing motion between electrolyte and electrodes, i.e., circulation

76
429/73

Single filling opening and means to equalize fluid level in plural cells

18
429/82

Venting structure

211
429/87

Gang type

48
429/88

Having manifold

58
429/84

Nonspill fluent electrolyte type other than gas diffusive type

33
429/85

Weight actuated valve type

4
429/89

Other stopper, cap or plug type

99
429/86

Reactive, absorbable or diffusive type

94
429/83

Separate ventilating inlet and exhaust openings

32
429/53

Means externally releasing internal gas pressure from closed cell, i.e., valve etc.

238
429/56

Blowout type

189
429/54

Elastic, resilient or spring biasing valve means

143
429/55

Elastic band or o-ring valve member

30
429/94

Plural concentric or single coiled electrode

497
429/48

Preserving cell in storage feature

94
429/50

Process of cell operation

264
429/52

Activation of inactive cell

62
429/51

Electrolyte circulation

89
429/5

Radio active material containing

28
429/49

Regenerating, salvage or repair feature other than only addition of electrolyte to cell or electrically charging per se

177
429/57

Sealed cell having gas prevention or elimation means

199
429/58

Prevention means controlling an auxiliary device

31
429/59

Prevention or elimination means is one of the cell electrodes or is electrically connected to an electrode

250
429/60

Electrodes having different total capacity or one electrode with charge or discharge reserve

79
429/65

Terminal protector other than seal through casing

103
429/61

With control means responsive to battery condition sensing means

254
429/63

Electrolyte feeding control from reserve supply

35
429/64

Having valve in control

45
429/62

Temperature control

259
429/120

With heat exchange feature

395
429/90

With measuring, testing, or indicating means

245
429/91

For charge or liquid level

139
429/92

Having electrical circuitry

95
429/93

External type

117
429/7

With nonbattery electrical component electrically connected within cell casing other than testing or indicating components

296
429/6

With pressure equalizing means for liquid immersion operation

13
429/4

With sonic or ultrasonic feature

20
429/71

With system having means to move ventilating fluid

50
 
 
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