US Patent Class 19
TEXTILES: FIBER PREPARATION




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Current as of: June, 1999
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  DF  CLASS NOTES
.2  DF  STOPPING
.21  DF  .~ Photo responsive
.22  DF  .~ With signal
.23  DF  .~ Thickness detection
.24  DF  .~.~ Floating roll
.25  DF  .~ Break or run-out detection
.26  DF  .~.~ Strand winding
.27  DF  DRYING
.3  DF  STAPILIZING
.35  DF  .~ Tension breaking
.37  DF  .~.~ With weakening
.39  DF  .~.~ Multi-stage
.41  DF  .~.~ With lateral filament deflection
.43  DF  .~.~ Differential effect
.46  DF  .~ With prior treatment
.48  DF  .~.~ Aligning or separating
.51  DF  .~ With stapled fiber overlapping
.56  DF  .~ Combined
.58  DF  .~ Continuously flowing work
.6  DF  .~.~ Cutting
.62  DF  .~.~.~ Differential speed rotary cutter
.64  DF  .~.~.~ Fraying (e.g., abrasive)
1  DF  LIBERATING
2  DF  .~ Animal fibers
3  DF  .~.~ Silk
4  DF  .~.~ Feathers
5 R  DF  .~ Decorticating
6  DF  .~.~ With seed or leaf removing
7  DF  .~.~ With liquid treatment
8  DF  .~.~.~ Depulping
9  DF  .~.~ With air blast
10  DF  .~.~ Individual stalk opening
11  DF  .~.~ Traveling clamp feed
12  DF  .~.~.~ Transverse
13  DF  .~.~.~.~ Overhead
14  DF  .~.~.~.~.~ Depulping
15  DF  .~.~.~.~ Depulping
16  DF  .~.~.~.~.~ Single rotor
17  DF  .~.~.~ Depulping
18  DF  .~.~.~.~ Including rotary
19  DF  .~.~ Apron machines
20  DF  .~.~.~ Depulping
21  DF  .~.~ Combinations with reciprocating brakes
22  DF  .~.~ Reciprocating brakes
23  DF  .~.~.~ Continuous feed
24  DF  .~.~ Rotary machines
25  DF  .~.~.~ Axially movable rotor
26  DF  .~.~.~ Single rotor
27  DF  .~.~.~.~ Depulping
28  DF  .~.~.~ Depulping
29  DF  .~.~.~ Including brakes and combs
30  DF  .~.~.~ Brakes and beaters
31  DF  .~.~.~ Brakes
32  DF  .~.~.~.~ Reverse rotation
33  DF  .~.~.~ Beaters
34  DF  .~.~ Depulping
5 A  DF  .~.~ Systems
35  DF  .~ Boll hulling
36  DF  .~.~ With knocker roll and breaker
37  DF  .~.~ With knocker roll
38  DF  .~.~ With breaker
39  DF  .~ Ginning
40  DF  .~.~ Delinting
41  DF  .~.~.~ Delinters
42  DF  .~.~.~.~ Separate delinting and doffing chambers
43  DF  .~.~.~.~.~ Roller and bar
44  DF  .~.~.~.~ Rotor in shell
45  DF  .~.~.~.~.~ Vertical
46  DF  .~.~.~.~.~.~ Skeleton rotor
47  DF  .~.~.~.~.~ Skeleton rotor
48 R  DF  .~.~ Gins
49  DF  .~.~.~ Rolling squeeze
50  DF  .~.~.~ Roller and bar
51  DF  .~.~.~.~ Laterally movable detacher
52  DF  .~.~.~.~ Vibratory detacher
53  DF  .~.~.~.~ Rotary detacher
54  DF  .~.~.~ Rollers
55 R  DF  .~.~.~ Saw
56  DF  .~.~.~.~ With boll hullers
57  DF  .~.~.~.~ Multiple cylinders
58  DF  .~.~.~.~ Doffing and moting
59  DF  .~.~.~.~.~ Pneumatic doffing
60  DF  .~.~.~.~.~ Brushes
61  DF  .~.~.~.~ Seed boards
62 R  DF  .~.~.~.~ Ribs
62 A  DF  .~.~.~.~.~ Rotary rib
63  DF  .~.~.~.~ Saws
64  DF  .~.~.~.~ Saw cleaners
55 A  DF  .~.~.~.~ Gin breast lift
55 B  DF  .~.~.~.~ Float roll
48 A  DF  .~.~.~ Disc type
64.5  DF  .~.~ Feeding
65 R  DF  WORKING
66 R  DF  .~ Fluid or special treatment
66.1  DF  .~.~ Crimping or curling
66.2  DF  .~.~.~ Opposed intermeshing traveling surfaces
200  DF  .~.~ Cleaning
201  DF  .~.~.~ By detergent
202  DF  .~.~.~ Including condensing or saw action
203  DF  .~.~.~.~ And doffing
204  DF  .~.~.~ And feeding
205  DF  .~.~.~.~ Pneumatic
66 CC  DF  .~.~ Cotton conditioning
66 T  DF  .~.~ Tow
80 R  DF  .~ Picking
81  DF  .~.~ Nonrotary
82  DF  .~.~ Disintegrators
83  DF  .~.~.~ Gripping
84  DF  .~.~ Bur removers, gripping feed
85  DF  .~.~ Beaters
86  DF  .~.~.~ Gripping feed
87  DF  .~.~.~.~ Multiple rotor
88  DF  .~.~.~.~.~ With condenser
89  DF  .~.~.~.~ With condenser
90  DF  .~.~.~ Longitudinal feed
91  DF  .~.~.~.~ Multiple rotor
92  DF  .~.~.~ Intermittent feed
93  DF  .~.~.~ Multiple rotor
94  DF  .~.~.~ Rotors
95  DF  .~.~.~ Screens
96  DF  .~.~ Gripping feed
97  DF  .~.~ Rotors
97.5  DF  .~.~ Feeding
80 A  DF  .~.~ Separator
98  DF  .~ Carding
99  DF  .~.~ Card types
100  DF  .~.~.~ Roller worker and stripper
101  DF  .~.~.~.~ Multiple-roller worker unit
102  DF  .~.~.~ Traveling flat
103  DF  .~.~.~.~ Bends
104  DF  .~.~.~ Stationary flat
105  DF  .~.~ Feeding
106 R  DF  .~.~ Doffing
106 A  DF  .~.~.~ Doffer comb
107  DF  .~.~ Waste recovering
108  DF  .~.~ Stripping
109  DF  .~.~.~ Pneumatic
110  DF  .~.~.~ Flat
111  DF  .~.~.~.~ Traveling
112  DF  .~.~ Cylinders
113  DF  .~.~ Flats
114  DF  .~.~ Card clothing
115 R  DF  .~ Combing
215  DF  .~.~ Tuft combing
216  DF  .~.~.~ Tuft translating type
217  DF  .~.~.~.~ Rotary
218  DF  .~.~.~ Waste clearing
219  DF  .~.~.~ With auxiliary pressing
220  DF  .~.~.~ Nonrotary combing
221  DF  .~.~.~.~ Stationary when combing
223  DF  .~.~.~.~.~ Moving to combed position in timed relation to nipper or detaching motion
224  DF  .~.~.~.~.~ Adjusting
225  DF  .~.~.~ With oscillating or reciprocating nipper
226  DF  .~.~.~.~ Plural pairs - alternating
227  DF  .~.~.~.~ Resilient closing or opening
228  DF  .~.~.~.~ Adjusting
229  DF  .~.~.~ Detaching (i.e., segment)
230  DF  .~.~.~.~ Belt
231  DF  .~.~.~.~ Roll
232  DF  .~.~.~.~.~ Oscillating or reciprocating
233  DF  .~.~.~ Rotary comb cylinder
234  DF  .~.~.~.~ Half lap
235  DF  .~.~.~ Nipper
122  DF  .~.~ Circle
123  DF  .~.~.~ Exterior and interior
124 R  DF  .~.~.~ Dabbing mechanism
124 B  DF  .~.~.~.~ Brush
125  DF  .~.~ Overhead traveling clamp
126  DF  .~.~ Apron and cylinder
127  DF  .~.~ Apron
128  DF  .~.~ Cylinder
129 R  DF  .~.~ Screw gill bar
129 A  DF  .~.~.~ Gill bar cleaners
115 A  DF  .~.~ Draw-off rolls
115 B  DF  .~.~ Waste collector
236  DF  .~ Drafting
237  DF  .~.~ Producing longitudinal variations
238  DF  .~.~.~ By variation of fiber input rate
239  DF  .~.~ With material sensing
240  DF  .~.~.~ And speed changing
241  DF  .~.~.~.~ By belt shifting
242  DF  .~.~ With fiber stretching
243  DF  .~.~ With doubling
244  DF  .~.~ Apron type
245  DF  .~.~.~ With clearing
246  DF  .~.~.~ With condensing
247  DF  .~.~.~ With fiber orienting
248  DF  .~.~.~ Pressing or holding fibers against belt
249  DF  .~.~.~ With auxiliary apron support
250  DF  .~.~.~ Tensioning
251  DF  .~.~.~.~ By roll
252  DF  .~.~.~ With apron guide
253  DF  .~.~.~.~ Including specific cross-guide structure
254  DF  .~.~.~.~ Cradles
255  DF  .~.~.~.~.~ For plural aprons
256  DF  .~.~.~ With adjustments
257  DF  .~.~ With cooperating trough
258  DF  .~.~ Roll type
259  DF  .~.~.~ Including slip roll
260  DF  .~.~.~ Including changing roll speed or location
261  DF  .~.~.~.~ Roll-spacing adjusting
262  DF  .~.~.~ With clearing
263  DF  .~.~.~.~ Pneumatic
264  DF  .~.~.~.~ Underclearing
265  DF  .~.~.~.~ Top roll
266  DF  .~.~.~ Pressure-applying devices
267  DF  .~.~.~.~ With releasing means
268  DF  .~.~.~.~.~ Responsive to roll relationship
269  DF  .~.~.~.~.~ Gravity pressure means
270  DF  .~.~.~.~ Signal
271  DF  .~.~.~.~ Uniform pressure applying to all rolls or plural pairs from a single source
272  DF  .~.~.~.~ Magnetic, hydraulic, or pneumatic
273  DF  .~.~.~.~ Applied through stirrup and saddle
274  DF  .~.~.~.~.~ Including fulcrumed lever linking stirrup and pressure means
275  DF  .~.~.~.~.~.~ Gravity pressure applying means
276  DF  .~.~.~.~.~.~.~ With means to vary or permit variation of pressure effect on fulcrumed lever arm
277  DF  .~.~.~.~.~ Spring pressure applying means
278  DF  .~.~.~.~ Applied through saddle
279  DF  .~.~.~.~.~ Spring pressure applying means
280  DF  .~.~.~.~.~.~ With pressure-adjusting means
281  DF  .~.~.~.~ Spring pressure applying means
282  DF  .~.~.~.~.~ With means to adjust pressure
283  DF  .~.~.~.~ Gravity pressure applying means
284  DF  .~.~.~.~ Saddle, per se
285  DF  .~.~.~.~.~ Lubricating or antifriction means
286  DF  .~.~.~ Roll condensing
287  DF  .~.~.~ Reciprocating transverse guide, condenser, or roll
288  DF  .~.~.~ With fiber guide, condenser, or brake
289  DF  .~.~.~.~ Including marginal folding
290  DF  .~.~.~.~ Presser
291  DF  .~.~.~.~ Open type
292  DF  .~.~.~.~ Adjustable
293  DF  .~.~.~ Gear or friction driving
294  DF  .~.~.~ Roll stands
295  DF  .~.~.~.~ Top roll
65 A  DF  .~ Systems
65 T  DF  .~ Tow
65 CR  DF  .~ Crush rolls
144  DF  ASSEMBLING
145  DF  .~ Different materials
145.3  DF  .~.~ Fiber to stick or rod
145.5  DF  .~.~ Blending
145.7  DF  .~.~.~ By carding
148  DF  .~ Article, screen-condensing
149  DF  .~ Article, winding
150  DF  .~ Silver forming
151  DF  .~.~ Fleece dividers
152  DF  .~.~ Rub rolls
153  DF  .~.~ Rub aprons
296  DF  .~ Web forming
297  DF  .~.~ With fiber sampling
298  DF  .~.~ With split lap preventing
299  DF  .~.~ Including continuous filaments
300  DF  .~.~ Control means responsive to sensed condition or program
301  DF  .~.~ Irregular, nonuniform, or patterned receiving surface
302  DF  .~.~ Stratified or multilayer
303  DF  .~.~ With divided fiber stream or separate handling of trash or fugitive fiber
304  DF  .~.~ Fluid propelled to condenser
305  DF  .~.~.~ With fiber liberation
306  DF  .~.~.~.~ Gripping feed to fiber separator
307  DF  .~.~.~.~.~ Rotary condenser
308  DF  .~.~.~ Rotary condenser
157  DF  .~ Formed silvers
159 R  DF  .~.~ Coiling
159 A  DF  .~.~.~ Can changing
160  DF  .~.~ Zigzag
161.1  DF  .~ Formed web
163  DF  .~.~ Zigzag