What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
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363-131 121-55A 14-.5
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Class Number: 19 Class Title: TEXTILES: FIBER PREPARATION Subclass Subclass Number Title .2 STOPPING .21 .Photo responsive .22 .With signal .23 .Thickness detection .24 ..Floating roll .25 .Break or run-out detection .26 ..Strand winding .27 DRYING .3 STAPILIZING .35 .Tension breaking .37 ..With weakening .39 ..Multi-stage .41 ..With lateral filament deflection .43 ..Differential effect .46 .With prior treatment .48 ..Aligning or separating .51 .With stapled fiber overlapping .56 .Combined .58 .Continuously flowing work .6 ..Cutting .62 ...Differential speed rotary cutter .64 ...Fraying (e.g., abrasive) 1 LIBERATING 2 .Animal fibers 3 ..Silk 4 ..Feathers 5 R .Decorticating 6 ..With seed or leaf removing 7 ..With liquid treatment 8 ...Depulping 9 ..With air blast 10 ..Individual stalk opening 11 ..Traveling clamp feed 12 ...Transverse 13 ....Overhead 14 .....Depulping 15 ....Depulping 16 .....Single rotor 17 ...Depulping 18 ....Including rotary 19 ..Apron machines 20 ...Depulping 21 ..Combinations with reciprocating brakes 22 ..Reciprocating brakes 23 ...Continuous feed 24 ..Rotary machines 25 ...Axially movable rotor 26 ...Single rotor 27 ....Depulping 28 ...Depulping 29 ...Including brakes and combs 30 ...Brakes and beaterss 31 ...Brakes 32 ....Reverse rotation 33 ...Beaters 34 ..Depulping 5 A ..Systems 35 .Boll hulling 36 ..With knocker roll and breaker 37 ..With knocker roll 38 ..With breaker 39 .Ginning 40 ..Delinting 41 ...Delinters 42 ....Separate delinting and doffing chambers 43 .....Roller and bar 44 ....Rotor in shell 45 .....Vertical 46 ......Skeleton rotor 47 .....Skeleton rotor 48 R ..Gins 49 ...Rolling squeeze 50 ...Roller and bar 51 ....Laterally movable detacher 52 ....Vibratory detacher 53 ....Rotary detacher 54 ...Rollers 55 R ...Saw 56 ....With boll hullers 57 ....Multiple cylinders 58 ....Doffing and moting 59 .....Pneumatic doffing 60 .....Brushes 61 ....Seed boards 62 R ....Ribs 62 A .....Rotary rib 63 ....Saws 64 ....Saw cleaners 55 A ....Gin breast lift 55 B ....Float roll 48 A ...Disc type 64.5 ..Feeding 65 R WORKING 66 R .Fluid or special treatment 66.1 ..Crimping or curling 66.2 ...Opposed intermeshing traveling surfaces 200 ..Cleaning 201 ...By detergent 202 ...Including condensing or saw action 203 ....And doffing 204 ...And feeding 205 ....Pneumatic 66 CC ..Cotton conditioning 66 T ..Tow 80 R .Picking 81 ..Nonrotary 82 ..Disintegrators 83 ...Gripping 84 ..Bur removers, gripping feed 85 ..Beaterss 86 ...Gripping feed 87 ....Multiple rotor 88 .....With condenser 89 ....With condenser 90 ...Longitudinal feed 91 ....Multiple rotor 92 ...Intermittent feed 93 ...Multiple rotor 94 ...Rotors 95 ...Screens 96 ..Gripping feed 97 ..Rotors 97.5 ..Feeding 80 A ..Separator 98 .Carding 99 ..Card types 100 ...Roller worker and stripper 101 ....Multiple-roller worker unit 102 ...Traveling flat 103 ....Bends 104 ...Stationary flat 105 ..Feeding 106 R ..Doffing 106 A ...Doffer comb 107 ..Waste recovering 108 ..Stripping 109 ...Pneumatic 110 ...Flat 111 ....Traveling 112 ..Cylinders 113 ..Flats 114 ..Card clothing 115 R .Combing 215 ..Tuft combing 216 ...Tuft translating type 217 ....Rotary 218 ...Waste clearing 219 ...With auxiliary pressing 220 ...Nonrotary combing 221 ....Stationary when combing 223 .....Moving to combed position in timed relation to nipper or detaching motion 224 .....Adjusting 225 ...With oscillating or reciprocating nipper 226 ....Plural pairs - alternating 227 ....Resilient closing or opening 228 ....Adjusting 229 ...Detaching (i.e., segment) 230 ....Belt 231 ....Roll 232 .....Oscillating or reciprocating 233 ...Rotary comb cylinder 234 ....Half lap 235 ...Nipper 122 ..Circle 123 ...Exterior and interior 124 R ...Dabbing mechanism 124 B ....Brushh 125 ..Overhead traveling clamp 126 ..Apron and cylinder 127 ..Apron 128 ..Cylinder 129 R ..Screw gill bar 129 A ...Gill bar cleaners 115 A ..Draw-off rolls 115 B ..Waste collector 236 .Drafting 237 ..Producing longitudinal variations 238 ...By variation of fiber input rate 239 ..With material sensing 240 ...And speed changing 241 ....By belt shifting 242 ..With fiber stretching 243 ..With doubling 244 ..Apron type 245 ...With clearing 246 ...With condensing 247 ...With fiber orienting 248 ...Pressing or holding fibers against belt 249 ...With auxiliary apron support 250 ...Tensioning 251 ....By roll 252 ...With apron guide 253 ....Including specific cross-guide structure 254 ....Cradles 255 .....For plural aprons 256 ...With adjustments 257 ..With cooperating trough 258 ..Roll type 259 ...Including slip roll 260 ...Including changing roll speed or location 261 ....Roll-spacing adjusting 262 ...With clearing 263 ....Pneumatic 264 ....Underclearing 265 ....Top roll 266 ...Pressure-applying devices 267 ....With releasing means 268 .....Responsive to roll relationship 269 .....Gravity pressure means 270 ....Signal 271 ....Uniform pressure applying to all rolls or plural pairs from a single source 272 ....Magnetic, hydraulic, or pneumatic 273 ....Applied through stirrup and saddle 274 .....Including fulcrumed lever linking stirrup and pressure means 275 ......Gravity pressure applying means 276 .......With means to vary or permit variation of pressure effect on fulcrumed lever arm 277 .....Spring pressure applying means 278 ....Applied through saddle 279 .....Spring pressure applying means 280 ......With pressure-adjusting means 281 ....Spring pressure applying means 282 .....With means to adjust pressuree 283 ....Gravity pressure applying means 284 ....Saddle, per se 285 .....Lubricating or antifriction means 286 ...Roll condensing 287 ...Reciprocating transverse guide, condenser, or roll 288 ...With fiber guide, condenser, or brake 289 ....Including marginal folding 290 ....Presser 291 ....Open type 292 ....Adjustable 293 ...Gear or friction driving 294 ...Roll stands 295 ....Top roll 65 A .Systems 65 T .Tow 65 CR .Crush rolls 144 ASSEMBLING 145 .Different materials 145.3 ..Fiber to stick or rod 145.5 ..Blending 145.7 ...By carding 148 .Article, screen-condensing 149 .Article, winding 150 .Silver forming 151 ..Fleece dividers 152 ..Rub rolls 153 ..Rub aprons 296 .Web forming 297 ..With fiber sampling 298 ..With split lap preventing 299 ..Including continuous filaments 300 ..Control means responsive to sensed condition or program 301 ..Irregular, nonuniform, or patterned receiving surface 302 ..Stratified or multilayer 303 ..With divided fiber stream or separate handling of trash or fugitive fiber 304 ..Fluid propelled to condenser 305 ...With fiber liberation 306 ....Gripping feed to fiber separator 307 .....Rotary condenser 308 ...Rotary condenser 157 .Formed silvers 159 R ..Coiling 159 A ...Can changing 160 ..Zigzag 161.1 .Formed web 163 ..Zigzag