| Class 162 | PAPER MAKING AND FIBER LIBERATION |
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![[List of Pre Grant Publications for class 162 subclass 1]](../as.gif) | ![[List of Patents for class 162 subclass 1]](../ps.gif) | 1 | PROCESSES OF CHEMICAL LIBERATION, RECOVERY OR PURIFICATION OF NATURAL CELLULOSE OR FIBROUS MATERIAL |
| | 2 |  Animal fibers |
| | 3 | Mineral fibers |
| | 4 | Waste paper or textile waste |
| | 5 |  With organic agent |
| | 6 | With chlorine, chlorine compounds, oxygen, ozone, or per-compounds |
| | 7 | With sulfur or sulfur compound |
| | 8 | With alkali metal, alkaline earth metal, or ammonium compound |
| | 9 | With chemical or physical modification of liberated fiber |
| | 10 | With non-fiber material added to product |
| | 13 | With formation of web or article |
| | 14 | Including recovery of organic by-product |
| | 17 | Continuous chemical treatment or continuous charging or discharging |
| | 18 | With compression, squeezing or compacting of fibrous material during charging |
| | 19 | Plural diverse stage treatment |
| | 20 | With decortication or mechanical preparation of textile fibers |
| | 21 | Defibration by projection or explosion |
| | 23 | Mechanical defibration in the presence of heated gas or gas under pressure |
| | 24 | Chemical treatment after start or completion of mechanical defibration |
| | 26 | Simultaneous mechanical defibration and chemical treatment |
| | 27 | Mechanical defibration of logs or blocks after chemical treatment |
| | 28 | With plural or specified mechanical defibering step |
| | 29 | With regeneration, reclamation, reuse, recycling or destruction of digestion fluid |
| | 30.1 | With destruction of organic ingredient in or smelting of liquor |
| | 30.11 |  Treatment of kraft pulping chemicals |
| | 31 | Flames combustion |
| | 32 | Liquor from digestion using organic compound or including element other than Na, Ca, Mg, O, C, H or S |
| | 33 | With mixing of liquors from different digestions |
| | 34 | Plural diverse digestion of same fibrous material |
| | 35 | Residue converted into liquor different from original liquor |
| | 36 | Sulfur dioxide or sulfite containing spent liquor |
| | 37 | Digestion fluid reused on different fibrous materials |
| | 41 | Recirculation (includes separation from fibers) |
| | 47 | With heat recovery |
| | 48 | With cleaning, preserving or conditioning of apparatus |
| | 49 | With testing, sampling or analyzing |
| | 50 | Utilizing electrical or radiant energy |
| | 51 | Digestion odor control |
| | 52 | Charging and/or discharging fibrous material |
| | 53 | Vacuum treatment |
| | 54 | Freezing |
| | 55 | With classifying, separating or screening of pulp (solids from solids) |
| | 56 | With squeezing, compression, rubbing, kneading |
| | 57 | With agitation or forced circulation |
| | 60 | With washing |
| | 61 | Regulatory |
| | 63 | Gas, vapor or mist contact |
| | 69 | Non-continuous liquid phase |
| | 70 | Treatment with particular chemical |
| | 71 | Treatment of ground-wood or sawdust |
| | 72 | Organic |
| | 73 | With inorganic chlorine containing material |
| | 74 | Chlorine containing |
| | 75 | Fat, fatty oil or higher fatty acid |
| | 76 | Acids, salts or esters |
| | 77 | Alcohols or phenols |
| | 78 | Per-compound (e.g., peroxide, perborate) |
| | 79 | Heavy metal or aluminum containing |
| | 80 | Phosphorus, boron or silicon containing |
| | 81 | Nitrogen oxide, acid, or salt thereof |
| | 82 | Sulfur containing |
| | 87 | Chlorine containing |
| | 90 | Alkali metal, ammonium, alkaline earth metal or magnesium hydroxide or carbonate |
| | 91 | Particular raw cellulosic materials |
| | 100 | PROCESSES AND PRODUCTS |
| | 101 | Pore forming in situ (e.g., gas generation) |
| | 102 | Utilizing non-aqueous suspending medium |
| | 103 | Including solid non-waterlaid preform |
| | 109 | Non-uniform, irregular or configured web or sheet |
| | 110 | Watermarking |
| | 111 | Creping and/or crinkling |
| | 114 | By perforating |
| | 115 | By fluid pressure |
| | 116 | By configured forming mold |
| | 117 | Subsequent treatment by irregular or configured die |
| | 118 | With winding or roll forming |
| | 123 | Multi-layer waterlaid webs or sheets |
| | 124 | With non-fiber added between layers |
| | 125 | Layers of different properties |
| | 132 | Separately formed webs subsequently united |
| | 134 | With printing and/or variegated coloring |
| | 135 | With coating after drying |
| | 138 | Electrical or magnetic product characteristic |
| | 139 | Cigarette paper |
| | 140 | Safety, identification and fraud preventing paper |
| | 141 | Plural fiber containing |
| | 142 | Undigested cellulosic fiber |
| | 143 | Animal or proteinaceous |
| | 145 | Mineral |
| | 146 | Synthetic (including chemically modified cellulose) |
| | 147 | Waste paper or textile waste |
| | 148 | Non-wood |
| | 149 | Fibers of different dimensions |
| | 150 | Undigested cellulosic fiber |
| | 151 | Animal or proteinaceous fiber |
| | 152 | Mineral fiber |
| | 157.1 | Synthetic fiber (including chemically modified cellulose) |
| | 157.2 | Synthetic resin |
| | 157.6 | Cellulosic |
| | 158 | Non-fiber additive |
| | 159 | Fire proofing agent |
| | 160 | Preservative or antioxidant |
| | 162 | Coloring agent |
| | 163 | Fiber supplied constituent |
| | 164.1 | Synthetic resin |
| | 164.2 | Ion exchange resin or molecular sieve |
| | 164.3 | Epoxy containing reactant |
| | 164.4 | Silicon containing |
| | 164.5 | Sulfur containing |
| | 164.6 | Nitrogen containing |
| | 164.7 | Ester type |
| | 165 | Phenol-aldehyde |
| | 166 | Amine- or amide-aldehyde |
| | 168.1 | Polymerized unsaturated compound |
| | 170 | Natural hydrocarbon gum (rubber) |
| | 171 | Bitumen |
| | 172 | Wax |
| | 173 | Hydrocarbon |
| | 174 | Protein |
| | 175 | Carbohydrate |
| | 179 | Fat, fatty oil, or higher fatty acid |
| | 180 | Natural resin |
| | 181.1 | Inorganic |
| | 181.2 | Metal salt other than silicate |
| | 181.4 | Metal oxide or hydroxide |
| | 181.6 | Silicon containing additive other than clay |
| | 181.8 | Clay |
| | 181.9 | Free metal or free carbon containing |
| | 182 | With preparatory chemical treatment of fiber |
| | 183 | Incorporation procedures |
| | 187 | Hydration and/or gelatinization |
| | 188 | Non-uniform internal structure |
| | 189 | Reclamation, salvage or reuse of materials |
| | 192 | Utilizing electrical or wave energy |
| | 193 | Lead strip forming and/or guiding |
| | 194 | With cutting and/or slitting |
| | 196 | With folding or twisting (e.g., roving) |
| | 197 | With stretching, tensioning, decurling, flexing or breaking |
| | 198 | With measuring, inspecting and/or testing |
| | 199 | Conditioning, preparing or repairing of apparatus |
| | 201 | Combined processes |
| | 202 | Running or indefinite length work forming and/or treating processes (e.g., web) |
| | 203 | Forming single web between opposed forming surfaces |
| | 204 | Subsequent treatment of formed web |
| | 208 | Treatment of slurry on mold surface |
| | 211 | Inhibiting or restricting drainage through mold |
| | 212 | Directing slurry into association with mold |
| | 213 | Projecting or slinging stock |
| | 214 | Pressure forming |
| | 215 | Counter or transverse of mold movement |
| | 216 | Mechanical treatment of slurry in head box or approach flow |
| | 217 | Suction through mold |
| | 218 | Article forming processes (pulp molding) |
| | 219 | Plural stage deposition |
| | 220 | Pressing with flexible diaphragm |
| | 221 | Treatment subsequent to removal from forming mold |
| | 222 | Surface treatment |
| | 223 | Reshaping (i.e., changing configuration) |
| | 224 | Heat and/or mechanical pressure |
| | 226 | Applying heat to work on forming mold |
| | 227 | Applying mechanical pressure to work on forming mold |
| | 228 | Accretion from bulk |
| | 230 | Separation from mold or core |
| | 231 | Articles |
| | 232 | APPARATUS |
| | 233 | Digester |
| | 234 | With mechanical defibering means |
| | 237 | Continuous |
| | 238 | Automatic control |
| | 239 | With recovery means |
| | 241 | Plural |
| | 242 | Combined |
| | 243 | With pulp agitating or circulating means |
| | 245 | Removable basket or retaining means |
| | 246 | Charging and/or discharging means (including blow pits) |
| | 248 | Forced circulation or percolation of fluid only |
| | 250 | Heating means |
| | 251 | Strainers |
| | 252 | Automatic control |
| | 253 | Of plural operations |
| | 254 | Of stock working device |
| | 255 | Of lead strip former and/or break sensing |
| | 256 | Of mold movement |
| | 258 | Of stock consistency |
| | 259 | Of stock feed to forming device |
| | 260 | Of product cutting device |
| | 261 | With beating, refining, and/or disintegrating means |
| | 262 | Electric controls or systems |
| | 263 | Measuring, testing, inspecting, indicating or illuminating |
| | 264 | White water or broke recovery, recirculation or treatment |
| | 265 | With coating or impregnating means (including printing) |
| | 267 | Molding pulp and non-pulp insert or preform |
| | 269 | With product stacking or piling means |
| | 270 | Flexing, bending, straightening or decurling means |
| | 272 | Apparatus repair, cleaning or conditioning |
| | 280 | Web creping or crinkling type |
| | 283 | With product winding or reeling means |
| | 286 | With cutting, scoring, perforating or tearing |
| | 287 | With folding, rolling or twisting means |
| | 288 | Molding and burnishing means |
| | 289 | Running or indefinite length product forming and/or treating means |
| | 290 | Molding and heat exchange means |
| | 291 | Moving impermeable member applying stock to mold |
| | 292 | Means flinging or projecting stock against mold |
| | 293 | Product slides relative to molding surface (e.g., extrusion molding) |
| | 294 | Mold intermittently moving relative to supply |
| | 295 | Concave molding surface in longitudinal or transverse section |
| | 296 | Irregular or configured molding surface (e.g., corrugated) |
| | 297 | Pneumatic pressure or vacuum means acting directly on stock on mold surface |
| | 298 | Plural separate streams of stock applied to mold |
| | 300 | Plural molds or plural spaced areas of application on a single mold |
| | 301 | Common vat or stock feed |
| | 303 | Molds converge to unit web |
| | 304 | Webs united on common carrier (e.g., felt) |
| | 305 | Molds with subsequent separate pressing means |
| | 306 | Means removing web product from molding surface |
| | 308 | Means treating stock on molding surface |
| | 309 | Irregular treating member or acting non-uniformly across web product |
| | 311 | Submerged in supply |
| | 312 | Solid treating member |
| | 315 | Means directing stock into contact with molding surface |
| | 316 | On to under surface only of mold |
| | 317 | Confined stock stream on forming surface (e.g., pressure forming) |
| | 318 | Cylinder mold with endless forming belt about |
| | 320 | Superposed or lateral stock pool type |
| | 322 | With diverse non-pulp material inlet |
| | 323 | Immersion vat type (e.g., cylinder machine vat) |
| | 324 |  Stock flow direction reversing means |
| | 325 | Stock directed transversely of mold direction |
| | 326 | Stock applied at plural points on mold periphery |
| | 327 | Baffles diverting or directing flow against cylinder mold |
| | 330 | Fluid level control |
| | 331 | Side seals |
| | 332 | Mold hanging |
| | 334 | Mask, deckle or apron |
| | 335 | With drain or suction means, for white water |
| | 336 | Flow box, slice, and/or approach flow |
| | 348 | Flexible endless band type mold (e.g., Fourdrinier) |
| | 349 | Concurrently moving back up |
| | 350 | Variable slope |
| | 351 | Means retarding or controlling drainage through mold |
| | 353 | Mask, deckle, or apron |
| | 354 | Table structure |
| | 357 | Cylinder molds, per se |
| | 358.1 | Press and felt |
| | 358.2 | With felt structure or felt composition |
| | 358.3 | Extended nip press |
| | 359.1 | With separate heated drying means |
| | 360.2 | Plural sequential presses |
| | 361 | Solid means acting on formed web |
| | 363 | Suction devices |
| | 375 | With heat exchange means |
| | 380 | Slurry supply conditioning or condition maintaining |
| | 381 | Combined |
| | 382 | Foraminous forming mold for discrete articles (pulp molding) |
| | 383 | Differing areas of porosity or of suction on single mold surface (including masking) |
| | 384 | Centrifugal |
| | 385 | With moving slurry supply container |
| | 386 | With handle or hand grip |
| | 387 | Accretion from bulk (i.e., immersed mold) |
| | 396 | Press felting (i.e., pressure member acting on pulp on mold) |
| | 397 | Plural molds (cavities) |
| | 399 | Plate or sheet type |
| | 401 | Flexible diaphragm |
| | 403 | Contracting matrix |
| | 405 | Expanding and/or contracting core |
| | 406 | About foraminous core |
| | 407 | Mold charging means |
| | 410 | Article ejecting |
| | 411 | Dipping molds, per se |
| | 415 | Compressor |
| CROSS-REFERENCE ART COLLECTIONS | ||
| | 900 | PAPERMAKING PRESS FELTS |
| | 901 | IMPERMEABLE BELTS FOR EXTENDED NIP PRESS |
| | 902 | WOVEN FABRIC FOR PAPERMAKING DRIER SECTION |
| | 903 | PAPER FORMING MEMBER (E.G., FOURDRINIER, SHEET FORMING MEMBER, ETC.) |
| | 904 | WITH SPECIFIED SEAM STRUCTURE OF PAPERMAKING BELT |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| DIGESTS | ||
| | DIG2 | CHIP SOAKING |
| | DIG3 | WETTING AGENT |
| | DIG4 | PITCH CONTROL |
| | DIG5 | ALPHA CELLULOSE |
| | DIG6 | MOISTURE AND BASIC WEIGHT |
| | DIG7 | WATER COLLECTORS (E.G., SAVE-ALLS) |
| | DIG8 | CHLORINE-CONTAINING LIQUID REGENERATION |
| | DIG9 | USES FOR PAPER MAKING SLUDGE |
| | DIG12 | SEASONING |