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Class Information
Number: 162
Name: Paper making and fiber liberation >
Description: This class includes:










Class Number Class Name No. of Patents
162/DIG.5

Alpha cellulose

3
162/232

Apparatus

48
162/272

Apparatus repair, cleaning or conditioning

288
162/274

Of porous or foraminous member (e.g., felt or mold)

110
162/275

Means applying fluid

91
162/279

And suction means

30
162/277

Reciprocating

14
162/278

With suction means

17
162/276

To cylinder

15
162/273

Wire changing and/or tensioning

99
162/252

Automatic control

199
162/255

Of lead strip former and/or break sensing

53
162/256

Of mold movement

18
162/257

Transverse movement of wire

15
162/253

Of plural operations

92
162/260

Of product cutting device

15
162/258

Of stock consistency

108
162/259

Of stock feed to forming device

137
162/254

Of stock working device

44
162/381

Combined

22
162/415

Compressor

1
162/416

Configured die (non-planar)

6
162/233

Digester

26
162/238

Automatic control

73
162/246

Charging and/or discharging means (including blow pits)

169
162/247

Target, impact, explosion

13
162/242

Combined

46
162/237

Continuous

109
162/248

Forced circulation or percolation of fluid only

50
162/249

With heating

40
162/250

Heating means

35
162/241

Plural

31
162/245

Removable basket or retaining means

7
162/251

Strainers

123
162/234

With mechanical defibering means

26
162/235

Concurrent

2
162/236

Continuous

20
162/243

With pulp agitating or circulating means

101
162/244

Rotating digester

2
162/239

With recovery means

45
162/240

With incinerator or evaporator

18
162/262

Electric controls or systems

106
162/270

Flexing, bending, straightening or decurling means

18
162/271

Sheet or web

99
162/382

Foraminous forming mold for discrete articles (pulp molding)

38
162/387

Accretion from bulk (i.e., immersed mold)

15
162/388

Means moving mold through, into or out of slurry

20
162/390

Plural and/or compartmented slurry container

10
162/393

Reciprocating carrier

3
162/394

With compressor

2
162/389

Relatively moving or separate mold and suction backup

9
162/391

Rotary or swinging carrier

8
162/392

With compressor

3
162/395

With compressor

3
162/410

Article ejecting

6
162/384

Centrifugal

4
162/383

Differing areas of porosity or of suction on single mold surface (including masking)

15
162/411

Dipping molds, per se

10
162/407

Mold charging means

4
162/409

Plural discrete areas of mold

5
162/408

Pressure charging

5
162/396

Press felting (i.e., pressure member acting on pulp on mold)

21
162/406

About foraminous core

2
162/403

Contracting matrix

0
162/404

About foraminous core

2
162/405

Expanding and/or contracting core

4
162/401

Flexible diaphragm

6
162/402

About foraminous core

2
162/399

Plate or sheet type

7
162/400

With cores (e.g., molding of apertured plates)

3
162/397

Plural molds (cavities)

3
162/398

Plate or sheet type (i.e., opposed flat platens)

4
162/386

With handle or hand grip

2
162/385

With moving slurry supply container

2
162/263

Measuring, testing, inspecting, indicating or illuminating

408
162/288

Molding and burnishing means

5
162/267

Molding pulp and non-pulp insert or preform

3
162/268

Running or indefinite length work

10
162/289

Running or indefinite length product forming and/or treating means

114
162/295

Concave molding surface in longitudinal or transverse section

6
162/357

Cylinder molds, per se

45
162/348

Flexible endless band type mold (e.g., fourdrinier)

264
162/349

Concurrently moving back up

6
162/353

Mask, deckle, or apron

38
162/351

Means retarding or controlling drainage through mold

82
162/352

Wire bottom scrappers or deflectors

212
162/354

Table structure

43
162/355

Vibrating or shaking (e.g., shake frames)

18
162/356

Perpendicular to plane of wire

8
162/350

Variable slope

11
162/296

Irregular or configured molding surface (e.g., corrugated)

31
162/315

Means directing stock into contact with molding surface

22
162/317

Confined stock stream on forming surface (e.g., pressure forming)

45
162/318

Cylinder mold with endless forming belt about

20
162/319

Superposed or lateral stock pool

3
162/336

Flow box, slice, and/or approach flow

247
162/339

Closed to atmosphere

28
162/340

Air cushion at above atmospheric pressure

22
162/337

Recirculation skimming or excess stock take-off

20
162/344

Slice

141
162/347

Flexible or pivoted

102
162/345

Plural, longitudinally spaced

9
162/346

Width adjustment

18
162/338

Transversely crossing inlet into flow box

18
162/341

Vibratile or moving member treating stock

24
162/342

Immersed rotary member (e.g., rectifier roll)

14
162/343

With vanes or pulp stream dividing means

233
162/323

Immersion vat type (e.g., cylinder machine vat)

22
162/327

Baffles diverting or directing flow against cylinder mold

6
162/328

Concentric with cylinder

2
162/329

Adjustable to or from cylinder

10
162/330

Fluid level control

3
162/334

Mask, deckle or apron

10
162/332

Mold hanging

0
162/333

Centerless

1
162/331

Side seals

4
162/326

Stock applied at plural points on mold periphery

2
162/325

Stock directed transversely of mold direction

2
162/324

Stock flow direction reversing means

2
162/335

With drain or suction means, for white water

11
162/316

On to under surface only of mold

1
162/320

Superposed or lateral stock pool type

2
162/321

Cylinder mold

9
162/322

With diverse non-pulp material inlet

26
162/292

Means flinging or projecting stock against mold

9
162/306

Means removing web product from molding surface

167
162/307

Blow off acting through mold

27
162/308

Means treating stock on molding surface

33
162/309

Irregular treating member or acting non-uniformly across web product

9
162/310

Fluid jet or suction means (e.g., shower deckle)

21
162/312

Solid treating member

16
162/313

Moving

6
162/314

Rotary

25
162/311

Submerged in supply

6
162/294

Mold intermittently moving relative to supply

0
162/290

Molding and heat exchange means

105
162/305

Molds with subsequent separate pressing means

79
162/291

Moving impermeable member applying stock to mold

2
162/300

Plural molds or plural spaced areas of application on a single mold

159
162/301

Common vat or stock feed

258
162/302

Tangent cylinder molds

3
162/303

Molds converge to unit web

44
162/304

Webs united on common carrier (e.g., felt)

45
162/298

Plural separate streams of stock applied to mold

13
162/299

Longitudinally spaced points of application

23
162/297

Pneumatic pressure or vacuum means acting directly on stock on mold surface

30
162/358.1

Press and felt

237
162/358.3

Extended nip press

344
162/358.5

With heating means

78
162/358.4

With impermeable belt structure or impermeable belt composition

189
162/360.2

Plural sequential presses

120
162/360.3

Having three or more coacting rolls (e.g., compact press, etc.)

132
162/358.2

With felt structure or felt composition

364
162/359.1

With separate heated drying means

161
162/293

Product slides relative to molding surface (e.g., extrusion molding)

4
162/361

Solid means acting on formed web

243
162/362

Marking or embossing

103
162/363

Suction devices

132
162/366

Adjustable width

15
162/365

Reciprocating

4
162/373

Roller face (suction not through rollers)

11
162/364

Systems

68
162/367

Traveling suction face

17
162/368

Rotary pervious cylinder

59
162/372

Shell structure

32
162/369

With non-rotating internal suction box

29
162/371

Box carried seals

31
162/370

Plural suction areas

39
162/374

Wear face structures and materials

133
162/380

Slurry supply conditioning or condition maintaining

109
162/280

Web creping or crinkling type

62
162/281

Cylinder and doctor

174
162/282

Circumferentially grooved cylinder

9
162/264

White water or broke recovery, recirculation or treatment

98
162/261

With beating, refining, and/or disintegrating means

135
162/265

With coating or impregnating means (including printing)

71
162/266

Acting on product on mold

17
162/286

With cutting, scoring, perforating or tearing

106
162/287

With folding, rolling or twisting means

3
162/375

With heat exchange means

76
162/377

Heated die

0
162/378

Contacting work on forming mold

2
162/379

Plural successive heated dies

2
162/376

Heated foraminous forming mold

3
162/269

With product stacking or piling means

4
162/283

With product winding or reeling means

48
162/284

Tube winding type

2
162/285

With tube cutting or slitting means

1
162/DIG.2

Chip soaking

11
162/DIG.8

Chlorine-containing liquid regeneration

46
162/901

Impermeable belts for extended nip press

169
162/DIG.6

Moisture and basic weight

56
162/903

Paper forming member (e.g., fourdrinier, sheet forming member, etc.)

273
162/900

Papermaking press felts

328
162/DIG.4

Pitch control

130
162/100

Processes and products

162
162/151

Animal or proteinaceous fiber

19
162/218

Article forming processes (pulp molding)

96
162/228

Accretion from bulk

46
162/229

Vibration of mold and/or slurry

2
162/226

Applying heat to work on forming mold

35
162/227

Applying mechanical pressure to work on forming mold

39
162/219

Plural stage deposition

18
162/220

Pressing with flexible diaphragm

18
162/230

Separation from mold or core

16
162/221

Treatment subsequent to removal from forming mold

29
162/224

Heat and/or mechanical pressure

57
162/225

Boards or sheets

57
162/223

Reshaping (i.e., changing configuration)

29
162/222

Surface treatment

14
162/231

Articles

68
162/139

Cigarette paper

102
162/201

Combined processes

49
162/199

Conditioning, preparing or repairing of apparatus

373
162/200

Wire stringing

32
162/138

Electrical or magnetic product characteristic

147
162/187

Hydration and/or gelatinization

28
162/103

Including solid non-waterlaid preform

50
162/104

Between separately formed webs

15
162/107

Glass

4
162/105

Metallic

20
162/106

Electrical conductor

24
162/108

Woven fabric or parallel strands

34
162/193

Lead strip forming and/or guiding

146
162/152

Mineral fiber

124
162/153

Asbestos

28
162/155

With organic additive

41
162/154

With portland cement

17
162/156

Glass

152
162/123

Multi-layer waterlaid webs or sheets

335
162/125

Layers of different properties

158
162/126

Color

20
162/129

Fiber

204
162/130

Dimension

116
162/131

Orientation

23
162/128

Inorganic additive

49
162/127

Organic additive

141
162/132

Separately formed webs subsequently united

136
162/133

On common felt or carries (non-mold)

50
162/124

With non-fiber added between layers

56
162/158

Non-fiber additive

1217
162/171

Bitumen

31
162/175

Carbohydrate

501
162/176

Cellulose (non-fibrous)

37
162/177

Cellulose derivative (e.g., cellulose ester)

149
162/178

Gum

103
162/162

Coloring agent

238
162/179

Fat, fatty oil, or higher fatty acid

307
162/163

Fiber supplied constituent

44
162/159

Fire proofing agent

87
162/173

Hydrocarbon

62
162/183

Incorporation procedures

490
162/184

Application to formed web

237
162/186

On mold

60
162/185

Part added to furnish or pulp

136
162/181.1

Inorganic

325
162/181.8

Clay

258
162/181.9

Free metal or free carbon containing

36
162/181.4

Metal oxide or hydroxide

140
162/181.5

Metal other than alkali metal, magnesium, or alkaline earth metal

117
162/181.2

Metal salt other than silicate

317
162/181.3

Sulfate or sulfite

117
162/181.6

Silicon containing additive other than clay

320
162/181.7

Alkali metal silicate

74
162/170

Natural hydrocarbon gum (rubber)

10
162/180

Natural resin

93
162/160

Preservative or antioxidant

67
162/161

Biocidal

243
162/174

Protein

67
162/164.1

Synthetic resin

531
162/166

Amine- or amide-aldehyde

156
162/167

With additional organic reactant

63
162/164.3

Epoxy containing reactant

330
162/164.7

Ester type

63
162/164.2

Ion exchange resin or molecular sieve

27
162/164.6

Nitrogen containing

532
162/165

Phenol-aldehyde

82
162/168.1

Polymerized unsaturated compound

551
162/168.7

Ester type

75
162/169

From polyene compound

216
162/168.6

Hetero s or epoxy component

25
162/168.2

Nitrogen containing compound

418
162/168.3

Acrylamide containing

455
162/168.4

Heterocyclic n or s or epoxy component

44
162/168.5

Heterocyclic n or s or epoxy component

79
162/164.4

Silicon containing

118
162/164.5

Sulfur containing

59
162/172

Wax

58
162/182

With preparatory chemical treatment of fiber

178
162/188

Non-uniform internal structure

15
162/109

Non-uniform, irregular or configured web or sheet

467
162/116

By configured forming mold

136
162/115

By fluid pressure

64
162/114

By perforating

31
162/111

Creping and/or crinkling

503
162/113

With additional deformation

218
162/112

With coating and/or laminating

334
162/117

Subsequent treatment by irregular or configured die

364
162/110

Watermarking

55
162/141

Plural fiber containing

167
162/143

Animal or proteinaceous

18
162/144

Leather

3
162/149

Fibers of different dimensions

161
162/145

Mineral

207
162/148

Non-wood

64
162/146

Synthetic (including chemically modified cellulose)

465
162/142

Undigested cellulosic fiber

80
162/147

Waste paper or textile waste

153
162/101

Pore forming in situ (e.g., gas generation)

68
162/189

Reclamation, salvage or reuse of materials

184
162/191

Broke or trim

68
162/190

White water

161
162/202

Running or indefinite length work forming and/or treating processes (e.g., web)

113
162/212

Directing slurry into association with mold

68
162/215

Counter or transverse of mold movement

3
162/216

Mechanical treatment of slurry in head box or approach flow

106
162/214

Pressure forming

23
162/213

Projecting or slinging stock

23
162/203

Forming single web between opposed forming surfaces

138
162/211

Inhibiting or restricting drainage through mold

43
162/204

Subsequent treatment of formed web

139
162/207

Heating, cooling, gas or vapor contact

298
162/205

Pressure

380
162/206

With heating and/or cooling

348
162/217

Suction through mold

76
162/208

Treatment of slurry on mold surface

56
162/210

Pressure member

38
162/209

Vibration or agitation

33
162/140

Safety, identification and fraud preventing paper

130
162/157.1

Synthetic fiber (including chemically modified cellulose)

128
162/157.6

Cellulosic

227
162/157.7

Regenerated cellulose, viscose or rayon

43
162/157.2

Synthetic resin

101
162/157.3

Polyamide, polyester or polyurethane

160
162/157.4

Polymerized unsaturated compound

40
162/157.5

Hydrocarbon or halohydrocarbon

79
162/150

Undigested cellulosic fiber

52
162/192

Utilizing electrical or wave energy

76
162/102

Utilizing non-aqueous suspending medium

26
162/135

With coating after drying

653
162/137

Plural layer coating

88
162/136

With treatment subsequent to coating

169
162/194

With cutting and/or slitting

82
162/195

Fluid deckle or shower

21
162/196

With folding or twisting (e.g., roving)

10
162/198

With measuring, inspecting and/or testing

442
162/134

With printing and/or variegated coloring

134
162/197

With stretching, tensioning, decurling, flexing or breaking

74
162/118

With winding or roll forming

69
162/119

With coating

14
162/120

With cutting and/or removing material

16
162/121

With heat

7
162/122

With pressure

13
162/1

Processes of chemical liberation, recovery or purification of natural cellulose or fibrous material

39
162/2

Animal fibers

4
162/52

Charging and/or discharging fibrous material

190
162/24

Chemical treatment after start or completion of mechanical defibration

87
162/25

With additional chemical treatment before start of defibration

75
162/17

Continuous chemical treatment or continuous charging or discharging

143
162/19

Plural diverse stage treatment

214
162/18

With compression, squeezing or compacting of fibrous material during charging

70
162/21

Defibration by projection or explosion

55
162/22

With chemical other than water or steam

28
162/51

Digestion odor control

33
162/54

Freezing

3
162/63

Gas, vapor or mist contact

79
162/66

Chlorine containing material

26
162/67

Chlorine dioxide

41
162/65

Oxygen, ozone or air

365
162/68

Steam only

105
162/64

Sulfur dioxide

5
162/14

Including recovery of organic by-product

53
162/15

From digester relief gases

23
162/16

From waste liquor

119
162/23

Mechanical defibration in the presence of heated gas or gas under pressure

97
162/27

Mechanical defibration of logs or blocks after chemical treatment

16
162/3

Mineral fibers

20
162/69

Non-continuous liquid phase

2
162/91

Particular raw cellulosic materials

68
162/94

Bamboo

12
162/93

Bark

6
162/98

Bast (e.g., flax, hemp, jute, ramie, sisal)

36
162/97

Cereal grasses or straws

41
162/95

Cotton fibers or linters

20
162/92

Fossilized (e.g., peat)

12
162/99

Non-wood

75
162/96

Sugar cane, bagasse or cornstalks

43
162/61

Regulatory

71
162/62

Concentration of chemicals

57
162/26

Simultaneous mechanical defibration and chemical treatment

94
162/70

Treatment with particular chemical

74
162/90

Alkali metal, ammonium, alkaline earth metal or magnesium hydroxide or carbonate

216
162/87

Chlorine containing

50
162/88

Plural diverse stage treatments

73
162/89

Alkali metal, ammonium, alkaline earth metal or magnesium hydroxide or carbonate in at least one stage

94
162/79

Heavy metal or aluminum containing

77
162/81

Nitrogen oxide, acid, or salt thereof

46
162/72

Organic

407
162/76

Acids, salts or esters

256
162/77

Alcohols or phenols

99
162/74

Chlorine containing

23
162/75

Fat, fatty oil or higher fatty acid

30
162/73

With inorganic chlorine containing material

18
162/78

Per-compound (e.g., peroxide, perborate)

334
162/80

Phosphorus, boron or silicon containing

99
162/82

Sulfur containing

113
162/83

Sulfur dioxide or sulfite

94
162/84

Plural diverse stage treatment

48
162/86

Alkali metal, ammonium, alkaline earth metal or magnesium hydroxide or carbonate in at least one stage

41
162/85

Chlorine containing material in at least one stage

10
162/71

Treatment of ground-wood or sawdust

58
162/50

Utilizing electrical or radiant energy

68
162/53

Vacuum treatment

13
162/4

Waste paper or textile waste

368
162/8

With alkali metal, alkaline earth metal, or ammonium compound

156
162/6

With chlorine, chlorine compounds, oxygen, ozone, or per-compounds

112
162/5

With organic agent

341
162/7

With sulfur or sulfur compound

62
162/57

With agitation or forced circulation

158
162/59

Closed circuit circulation

17
162/58

In rotating vessel

15
162/9

With chemical or physical modification of liberated fiber

267
162/55

With classifying, separating or screening of pulp (solids from solids)

329
162/48

With cleaning, preserving or conditioning of apparatus

57
162/20

With decortication or mechanical preparation of textile fibers

17
162/13

With formation of web or article

72
162/47

With heat recovery

128
162/10

With non-fiber material added to product

28
162/12

Added to web or article

22
162/11

Fiber supplied constituent

13
162/28

With plural or specified mechanical defibering step

140
162/29

With regeneration, reclamation, reuse, recycling or destruction of digestion fluid

292
162/37

Digestion fluid reused on different fibrous materials

73
162/38

With addition of chemicals prior to reuse

72
162/39

In digester

47
162/40

Without treatment or modification

69
162/41

Recirculation (includes separation from fibers)

81
162/46

Steam only

29
162/42

With treatment of fluids during recirculation

61
162/43

Removal and/or separation of portion of recirculating fluid

60
162/44

With recombing

22
162/45

With addition of chemicals to recirculating fluid

48
162/30.1

With destruction of organic ingredient in or smelting of liquor

183
162/31

Flames combustion

93
162/32

Liquor from digestion using organic compound or including element other than na, ca, mg, o, c, h or s

18
162/34

Plural diverse digestion of same fibrous material

9
162/35

Residue converted into liquor different from original liquor

20
162/36

Sulfur dioxide or sulfite containing spent liquor

52
162/30.11

Treatment of kraft pulping chemicals

242
162/33

With mixing of liquors from different digestions

23
162/56

With squeezing, compression, rubbing, kneading

157
162/49

With testing, sampling or analyzing

206
162/60

With washing

290
162/DIG.12

Seasoning

7
162/DIG.9

Uses for paper making sludge

44
162/DIG.10

Computer control of paper making variables

114
162/DIG.11

Wet end paper making variables

94
162/DIG.7

Water collectors (e.g., save-alls)

32
162/DIG.3

Wetting agent

18
162/904

With specified seam structure of papermaking belt

118
162/902

Woven fabric for papermaking drier section

156
 
 
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