US Patent Class 57
TEXTILES: SPINNING, TWISTING, AND TWINING



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Current as of: June, 1999
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  DF  CLASS NOTES
200  DF  STRAND STRUCTURE
201  DF  .~ Endless bands
202  DF  .~ Splices
203  DF  .~ Chenille
204  DF  .~ Alternately twisted
205  DF  .~.~ Crimped or bulked type
206  DF  .~ Longitudinal variation
207  DF  .~.~ Covered or wrapped type
208  DF  .~.~ Crimped or bulked type
209  DF  .~.~ Slub type
210  DF  .~ Covered or wrapped
211  DF  .~.~ Plied
212  DF  .~.~ Wire wrapped
213  DF  .~.~.~ Plural wire wrapped layer
214  DF  .~.~.~.~ Stranded layers
215  DF  .~.~.~.~ Including nonround cross section
216  DF  .~.~.~.~ With core other than wire
217  DF  .~.~.~.~ Coated or impregnated
218  DF  .~.~.~ Stranded wire-wrapped layer
219  DF  .~.~.~.~ Including nonround cross section
220  DF  .~.~.~.~ With core other than wire
221  DF  .~.~.~.~ Coated or impregnated
222  DF  .~.~.~ With core other than wire
223  DF  .~.~.~ Coated or impregnated
224  DF  .~.~ Discrete fiber wrap
225  DF  .~.~ Elastomeric material core
226  DF  .~.~.~ With crimped or bulked material
227  DF  .~.~ Including crimped or bulked material
228  DF  .~.~.~ Crimped or bulked core
229  DF  .~.~ Including glass material
230  DF  .~.~ Plural wrapped layers
231  DF  .~.~ Stranded layer
232  DF  .~.~ Coated or impregnated
233  DF  .~.~.~ Web material
234  DF  .~.~.~ Adhesively bonded
235  DF  .~.~ Web material
236  DF  .~ Plied
237  DF  .~.~ Cabled or cord type (i.e., plied plies)
238  DF  .~.~ Composite
239  DF  .~.~.~ Crimped or bulked
240  DF  .~.~ Glass material
241  DF  .~.~ Coated or impregnated
242  DF  .~.~.~ Adhesively bonded
243  DF  .~ Multifilament yarns
244  DF  .~.~ Composite
245  DF  .~.~.~ Crimped or bulked
246  DF  .~.~ Crimped or bulked
247  DF  .~.~.~ Twist crimped type
248  DF  .~.~ Particular cross section
249  DF  .~.~ Glass material
250  DF  .~.~ Coated impregnated
251  DF  .~.~.~ Adhesively bonded
252  DF  .~ Staple fiber blends
253  DF  .~.~ Particular cross sections
254  DF  .~.~ Crimped or bulked fibers
255  DF  .~.~ Synthetic material
256  DF  .~.~.~ With natural fibers
257  DF  .~.~ Coated
258  DF  .~ Coated or impregnated
259  DF  .~.~ Web material
260  DF  .~ Web material
1 R  DF  APPARATUS AND PROCESSES
2  DF  .~ Stapilizing
2.3  DF  .~ Untwisting with separating
2.5  DF  .~.~ With component winding
3  DF  .~ Covering or wrapping
3.5  DF  .~.~ With core substitution
4  DF  .~.~ Hair, grass, quillstock or the like
5  DF  .~.~ With loose fibers
6  DF  .~.~ With other operations
7  DF  .~.~.~ With coating or impregnating
8  DF  .~.~.~ With powdered material incorporating
9  DF  .~.~.~ With wire or strand preforming or shaping
10  DF  .~.~ Stationary core type
11  DF  .~.~ Rotating core type
12  DF  .~.~ With twisting of core or product
13  DF  .~.~ With plural strands
14  DF  .~.~.~ With cabling or doubling
15  DF  .~.~.~ In successive layers
16  DF  .~.~.~.~ With coaxial covering material supply
17  DF  .~.~.~ With coaxial covering material supply
18  DF  .~.~ With coaxial covering material supply
19  DF  .~.~ With stopping or starting
20  DF  .~ Waxed ends
21  DF  .~ Endless bands
22  DF  .~ Splicing
23  DF  .~.~ Implements
24  DF  .~ Chenille
25  DF  .~ Ends or hanks
26  DF  .~.~ Double feature
27  DF  .~.~.~ With reverse twist controller
28  DF  .~ Hair, grass or the like
29  DF  .~.~ Curling hair
30  DF  .~.~ Feeding
31  DF  .~ Web material
32  DF  .~.~ With coating or impregnating
33  DF  .~ Hollow rope machines
261  DF  .~ Piecing up
262  DF  .~.~ With traveler threading
263  DF  .~.~ On open-end machine
264  DF  .~ Monitor and control
265  DF  .~ Monitor and record
266  DF  .~ Doffing or donning
267  DF  .~.~ On cap or roving frame
268  DF  .~.~ Carriage
269  DF  .~.~.~ With strand manipulation
270  DF  .~.~.~ Bobbin or package manipulation
271  DF  .~.~.~ Successive and individual type
272  DF  .~.~.~.~ Ejector type
273  DF  .~.~ Bottom lifting
274  DF  .~.~ Over end of bobbin
275  DF  .~.~ Bobbin graspers
276  DF  .~ With preparation for doffing- or donning-type operation
277  DF  .~.~ Rail positioning
278  DF  .~.~ Strand manipulation
279  DF  .~ Threading up
280  DF  .~.~ On false twist type machines
281  DF  .~ Package handling
282  DF  .~ Twist setting
283  DF  .~.~ With twist variation
284  DF  .~.~ False twist crimp
285  DF  .~.~.~ Intertwine type
286  DF  .~.~.~ With coating or impregnating
287  DF  .~.~.~ With stretching
288  DF  .~.~.~.~ Simultaneous type
289  DF  .~.~.~ Fluid jet type
290  DF  .~.~.~ Plural twisting or heating
291  DF  .~.~.~ Operator accommodating frame arrangement
292  DF  .~.~ With coating or impregnating
293  DF  .~ Alternate twist
294  DF  .~.~ Accumulator type
295  DF  .~ With coating or impregnating
296  DF  .~.~ On twisting device
297  DF  .~.~ Strand bonding or adhesion
298  DF  .~.~ Wet drafting
299  DF  .~ Transfer tail
300  DF  .~ Clearing
301  DF  .~.~ On open-end machine
302  DF  .~.~.~ Rotor
303  DF  .~.~ Strand winding
304  DF  .~.~ Pneumatic
305  DF  .~.~.~ Strand type
306  DF  .~.~ Strand accumulating or scavenging
307  DF  .~.~ Of traveler
308  DF  .~ Atmospheric conditioning
309  DF  .~ Strand finishing or developing
310  DF  .~ With stretching
311  DF  .~ With wire or strand preforming or shaping
58.3  DF  .~ Skip type stranding machines
58.32  DF  .~.~ With cradle driving or holding means
58.34  DF  .~.~ With cradle supported by tube section joint and/or tube supporting or driving disc
58.36  DF  .~.~ With strand guiding means
58.38  DF  .~.~.~ Rotating strand guide
58.49  DF  .~ Unitary multiple twist devices
58.52  DF  .~.~ With stranding or plying (e.g., doubling)
58.54  DF  .~.~.~ Plural multiple twist devices
58.55  DF  .~.~.~.~ Tandemly arranged
58.57  DF  .~.~.~ With false twist
58.59  DF  .~.~ With false twist
58.61  DF  .~.~ Plural co-axial loops
58.63  DF  .~.~ Spaced, driven flyer members
58.65  DF  .~.~ Take-up type
58.67  DF  .~.~.~ With packaging by revolving strand guide and/or reciprocating package holder
58.68  DF  .~.~.~ With slip connection between flier drive and package
58.7  DF  .~.~ With strand feeding means
58.72  DF  .~.~ With package control means
58.74  DF  .~.~.~ For vibration damping
58.76  DF  .~.~.~ Magnetic
58.78  DF  .~.~.~ Gear
58.79  DF  .~.~.~.~ Friction type
58.81  DF  .~.~.~ Gravity
58.83  DF  .~.~ With strand guiding, guarding, or controlling means
58.84  DF  .~.~.~ Including transitory strand-storage means
58.86  DF  .~.~.~ Including tensioning means
400  DF  .~ Open end spinning
401  DF  .~.~ Friction
402  DF  .~.~ Electrostatic
403  DF  .~.~ Fluid
404  DF  .~.~ Rotating chamber type
405  DF  .~.~.~ With strand controlled stopping
406  DF  .~.~.~ With housing for drive or support
407  DF  .~.~.~.~ Having operator access
408  DF  .~.~.~ With fiber separating and/or feeding
409  DF  .~.~.~.~ Plural or variable feed
410  DF  .~.~.~.~ Coaxial roll
411  DF  .~.~.~.~ With fluid flow controlling or directing
412  DF  .~.~.~.~ With specific feed device for opening roll
413  DF  .~.~.~.~ With specific rotor feed channel
414  DF  .~.~.~ Rotor with fiber accreting portion
415  DF  .~.~.~.~ With fluid flow controlling or directing
416  DF  .~.~.~.~ Specific wall configuration
417  DF  .~.~.~.~ With specific yarn guiding device
59  DF  .~ Delivery twist type
60  DF  .~.~ With twisting couple
61  DF  .~.~.~ With stopping or starting
62  DF  .~.~ With winding
63  DF  .~.~.~ With cabling
64  DF  .~.~ With cabling
65  DF  .~.~ Planetary type
66  DF  .~ Receiving twist type
66.5  DF  .~.~ Rotating cradle package holder
67  DF  .~.~ Flier type
68  DF  .~.~.~ With capstan
70  DF  .~.~.~ Bobbin lag or drag type
71  DF  .~.~.~ With traversing strand guide or receiver
72  DF  .~.~ Bobbin lag or drag type
73  DF  .~.~ Spindle tip type
74  DF  .~.~ Cap type
75  DF  .~.~ Ring and traveler type
76  DF  .~.~ Centrifugal pots and guides
312  DF  .~.~.~ With strand or package manipulation
77  DF  .~.~.~ With driving connections
313  DF  .~ With rewinding
314  DF  .~ Stranding
315  DF  .~ With drafting
316  DF  .~.~ Domestic
317  DF  .~.~ Variable draft
318  DF  .~.~.~ False twist type
319  DF  .~.~ Intermittent
320  DF  .~.~.~ Mule type
321  DF  .~.~.~.~ Spindle drive control
322  DF  .~.~.~.~.~ Quadrant
323  DF  .~.~.~.~.~.~ Faller controlled
324  DF  .~.~.~.~ Faller control
325  DF  .~.~.~.~.~ Copping rail
326  DF  .~.~.~.~ Feed control
327  DF  .~.~ With carding
328  DF  .~.~ False twist type
329  DF  .~.~.~ Interstage
330  DF  .~.~.~ With self-contained drawing means
331  DF  .~.~.~ Friction type
332  DF  .~ False twist device
333  DF  .~.~ Having fluid jet twisting means
334  DF  .~.~ Friction type
335  DF  .~.~.~ Revolving roll-pair type
336  DF  .~.~.~ Having a frictional belt
337  DF  .~.~.~ Having a frictional disc
338  DF  .~.~.~.~ On plural axes
339  DF  .~.~.~.~.~ With discs overlapping
340  DF  .~.~.~.~.~.~ With nonperipheral surfaces of discs substantially abutting
341  DF  .~.~.~ Having a frictional tube, or a twisting head therefor, through which yarn passes
342  DF  .~.~.~.~ Plural twist tubes
343  DF  .~.~.~.~ Including mounting, support, or housing
344  DF  .~.~ Having a tube, or a twisting head therefor, through which yarn passes, with a yarn gripper
345  DF  .~.~.~ Plural tubes
346  DF  .~.~.~ Including mounting, support, or housing
347  DF  .~.~.~.~ Magnetic support
348  DF  .~.~ Including mounting, support, or housing
349  DF  .~.~.~ Magnetic support
350  DF  .~ With fluid jet
351  DF  .~ With other type crimping or texturing
78  DF  .~ Stopping or starting
79  DF  .~.~ Traverse controlled
80  DF  .~.~ Strand controlled
81  DF  .~.~.~ Electric
82  DF  .~.~.~ Twisting couple and feed
83  DF  .~.~.~ Feeding means stopping
84  DF  .~.~.~.~ Roll separating
85  DF  .~.~.~.~ Strand shifting
86  DF  .~.~.~.~ Severing
87  DF  .~.~.~.~.~ With clamping
88  DF  .~.~ Spindle stopping
89  DD  .~.~.~ Laterally movable spindle
90  DF  .~ Feeding
91  DF  .~.~ Irregular
92  DF  .~ Driving
93  DF  .~.~ Speed adjusting
94  DF  .~.~.~ Constant variation
95  DF  .~.~.~.~ With traverse controlled variation
96  DF  .~.~.~.~ Fly frame
97  DF  .~.~.~ Drawing rollers
98  DF  .~.~.~ Traverse controlled variation
99  DF  .~.~ Traversing
100  DF  .~.~ Electric
101  DF  .~.~ Turbine
102  DF  .~.~ Gear
103  DF  .~.~.~ Friction
104  DF  .~.~ Band
105  DF  .~.~.~ Tensioning
352  DF  .~ Strand guiding or guarding
353  DF  .~.~ Catching or holding
354  DF  .~.~ Separator or balloon limitor
355  DF  .~.~.~ Having antifriction coating or material
356  DF  .~.~.~ Readily removable or adjustable
357  DF  .~.~.~ Having threading slot
358  DF  .~.~ Threadboard
359  DF  .~.~.~ Traversing
360  DF  .~.~.~ With lifting means
361  DF  .~.~ Lay head
112  DF  .~ Elements
113  DF  .~.~ Drag
114  DF  .~.~ Nippers
115  DF  .~.~ Fliers
116  DF  .~.~.~ Unwinding type
117  DF  .~.~.~ With pressers
118  DF  .~.~.~ Ring and raceway type
119  DF  .~.~ Rings and travelers
120  DF  .~.~.~ With lubrication
121  DF  .~.~.~ With guards or protectors
122  DF  .~.~.~ With supporting, retaining or adjusting means
123  DF  .~.~.~.~ With bar type traveler
124  DF  .~.~.~.~ Rotating rings
125  DF  .~.~.~ Travelers
126  DF  .~.~.~.~ Bar type
127  DF  .~.~ Caps
127.5  DF  .~.~ Delivering elements
127.7  DF  .~.~.~ With adjustable package support
129  DF  .~.~ Receiving elements
130  DF  .~.~.~ Whirl driven
131  DF  .~.~.~.~ With yarn holding means
132  DF  .~.~.~.~ With spindle retaining means
133  DF  .~.~.~.~ With lubrication
134  DF  .~.~.~.~.~ Live spindle
135  DF  .~.~.~.~ Live spindle
136  DF  .~.~ Rails, rail guides, and support
137  DF  .~.~.~ Ring
138  DF  .~.~ Dies and mandrels
362  DF  .~ Processes
1 UN  DF  .~ Untwisting
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CROSS-REFERENCE ART COLLECTIONS
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901  DF  ANTISTATIC
902  DF  REINFORCING OR TIRE CORDS
903  DF  SEWING THREADS
904  DF  FLAME RETARDANT
905  DF  BICOMPONENT MATERIAL
906  DF  LINE APPLIANCES
907  DF  FOAMED AND/OR FIBRILLATED
908  DF  JET INTERLACED OR INTERMINGLED