Manual of U.S. Patent Classification
as of June 30, 2000

Class
057
TEXTILES: SPINNING, TWISTING, AND TWINING

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

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

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Questions regarding this report should be directed to:

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Washington, DC 20231

tel: (703) 306-2600
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Last Modified: 6 October 2000