| Class Number |
Class Name |
No. of Patents |
| 57/901 |
Antistatic |
62 |
| 57/1R |
Apparatus and processes |
111 |
| 57/293 |
Alternate twist |
184 |
| 57/294 |
Accumulator type |
59 |
| 57/308 |
Atmospheric conditioning |
64 |
| 57/24 |
Chenille |
30 |
| 57/300 |
Clearing |
27 |
| 57/307 |
Of traveler |
9 |
| 57/301 |
On open-end machine |
123 |
| 57/302 |
Rotor |
57 |
| 57/304 |
Pneumatic |
163 |
| 57/305 |
Strand type |
72 |
| 57/306 |
Strand accumulating or scavenging |
38 |
| 57/303 |
Strand winding |
36 |
| 57/3 |
Covering or wrapping |
104 |
| 57/4 |
Hair, grass, quillstock or the like |
0 |
| 57/11 |
Rotating core type |
29 |
| 57/10 |
Stationary core type |
41 |
| 57/18 |
With coaxial covering material supply |
79 |
| 57/3.5 |
With core substitution |
6 |
| 57/5 |
With loose fibers |
98 |
| 57/6 |
With other operations |
245 |
| 57/7 |
With coating or impregnating |
100 |
| 57/8 |
With powdered material incorporating |
2 |
| 57/9 |
With wire or strand preforming or shaping |
94 |
| 57/13 |
With plural strands |
106 |
| 57/15 |
In successive layers |
39 |
| 57/16 |
With coaxial covering material supply |
28 |
| 57/14 |
With cabling or doubling |
18 |
| 57/17 |
With coaxial covering material supply |
21 |
| 57/19 |
With stopping or starting |
16 |
| 57/12 |
With twisting of core or product |
70 |
| 57/59 |
Delivery twist type |
64 |
| 57/65 |
Planetary type |
11 |
| 57/64 |
With cabling |
13 |
| 57/60 |
With twisting couple |
11 |
| 57/61 |
With stopping or starting |
6 |
| 57/62 |
With winding |
18 |
| 57/63 |
With cabling |
4 |
| 57/266 |
Doffing or donning |
76 |
| 57/275 |
Bobbin graspers |
41 |
| 57/273 |
Bottom lifting |
17 |
| 57/268 |
Carriage |
78 |
| 57/270 |
Bobbin or package manipulation |
74 |
| 57/271 |
Successive and individual type |
14 |
| 57/272 |
Ejector type |
6 |
| 57/269 |
With strand manipulation |
30 |
| 57/267 |
On cap or roving frame |
55 |
| 57/274 |
Over end of bobbin |
48 |
| 57/92 |
Driving |
49 |
| 57/104 |
Band |
46 |
| 57/105 |
Tensioning |
69 |
| 57/100 |
Electric |
113 |
| 57/102 |
Gear |
12 |
| 57/103 |
Friction |
18 |
| 57/93 |
Speed adjusting |
60 |
| 57/94 |
Constant variation |
14 |
| 57/96 |
Fly frame |
15 |
| 57/95 |
With traverse controlled variation |
9 |
| 57/97 |
Drawing rollers |
12 |
| 57/98 |
Traverse controlled variation |
15 |
| 57/99 |
Traversing |
13 |
| 57/101 |
Turbine |
12 |
| 57/112 |
Elements |
13 |
| 57/127 |
Caps |
5 |
| 57/127.5 |
Delivering elements |
18 |
| 57/127.7 |
With adjustable package support |
7 |
| 57/138 |
Dies and mandrels |
18 |
| 57/113 |
Drag |
8 |
| 57/115 |
Fliers |
30 |
| 57/118 |
Ring and raceway type |
1 |
| 57/116 |
Unwinding type |
4 |
| 57/117 |
With pressers |
10 |
| 57/114 |
Nippers |
1 |
| 57/136 |
Rails, rail guides, and support |
18 |
| 57/137 |
Ring |
8 |
| 57/129 |
Receiving elements |
27 |
| 57/130 |
Whirl driven |
16 |
| 57/135 |
Live spindle |
35 |
| 57/133 |
With lubrication |
8 |
| 57/134 |
Live spindle |
9 |
| 57/132 |
With spindle retaining means |
15 |
| 57/131 |
With yarn holding means |
4 |
| 57/119 |
Rings and travelers |
31 |
| 57/125 |
Travelers |
30 |
| 57/126 |
Bar type |
0 |
| 57/121 |
With guards or protectors |
0 |
| 57/120 |
With lubrication |
20 |
| 57/122 |
With supporting, retaining or adjusting means |
33 |
| 57/124 |
Rotating rings |
49 |
| 57/123 |
With bar type traveler |
0 |
| 57/21 |
Endless bands |
9 |
| 57/25 |
Ends or hanks |
11 |
| 57/26 |
Double feature |
4 |
| 57/27 |
With reverse twist controller |
2 |
| 57/332 |
False twist device |
38 |
| 57/334 |
Friction type |
55 |
| 57/336 |
Having a frictional belt |
45 |
| 57/337 |
Having a frictional disc |
30 |
| 57/338 |
On plural axes |
20 |
| 57/339 |
With discs overlapping |
79 |
| 57/340 |
With nonperipheral surfaces of discs substantially abutting |
37 |
| 57/341 |
Having a frictional tube, or a twisting head therefor, through which yarn passes |
30 |
| 57/343 |
Including mounting, support, or housing |
14 |
| 57/342 |
Plural twist tubes |
7 |
| 57/335 |
Revolving roll-pair type |
18 |
| 57/344 |
Having a tube, or a twisting head therefor, through which yarn passes, with a yarn gripper |
26 |
| 57/346 |
Including mounting, support, or housing |
11 |
| 57/347 |
Magnetic support |
7 |
| 57/345 |
Plural tubes |
2 |
| 57/333 |
Having fluid jet twisting means |
191 |
| 57/348 |
Including mounting, support, or housing |
64 |
| 57/349 |
Magnetic support |
6 |
| 57/90 |
Feeding |
204 |
| 57/91 |
Irregular |
55 |
| 57/28 |
Hair, grass or the like |
4 |
| 57/29 |
Curling hair |
2 |
| 57/30 |
Feeding |
0 |
| 57/33 |
Hollow rope machines |
2 |
| 57/264 |
Monitor and control |
379 |
| 57/265 |
Monitor and record |
89 |
| 57/400 |
Open end spinning |
72 |
| 57/402 |
Electrostatic |
10 |
| 57/403 |
Fluid |
33 |
| 57/401 |
Friction |
208 |
| 57/404 |
Rotating chamber type |
119 |
| 57/414 |
Rotor with fiber accreting portion |
62 |
| 57/416 |
Specific wall configuration |
47 |
| 57/415 |
With fluid flow controlling or directing |
64 |
| 57/417 |
With specific yarn guiding device |
91 |
| 57/408 |
With fiber separating and/or feeding |
199 |
| 57/410 |
Coaxial roll |
9 |
| 57/409 |
Plural or variable feed |
58 |
| 57/411 |
With fluid flow controlling or directing |
147 |
| 57/412 |
With specific feed device for opening roll |
72 |
| 57/413 |
With specific rotor feed channel |
84 |
| 57/406 |
With housing for drive or support |
240 |
| 57/407 |
Having operator access |
90 |
| 57/405 |
With strand controlled stopping |
47 |
| 57/281 |
Package handling |
301 |
| 57/261 |
Piecing up |
244 |
| 57/263 |
On open-end machine |
320 |
| 57/262 |
With traveler threading |
15 |
| 57/362 |
Processes |
31 |
| 57/66 |
Receiving twist type |
27 |
| 57/72 |
Bobbin lag or drag type |
1 |
| 57/74 |
Cap type |
15 |
| 57/76 |
Centrifugal pots and guides |
32 |
| 57/77 |
With driving connections |
14 |
| 57/312 |
With strand or package manipulation |
19 |
| 57/67 |
Flier type |
54 |
| 57/70 |
Bobbin lag or drag type |
2 |
| 57/68 |
With capstan |
12 |
| 57/71 |
With traversing strand guide or receiver |
23 |
| 57/75 |
Ring and traveler type |
76 |
| 57/66.5 |
Rotating cradle package holder |
6 |
| 57/73 |
Spindle tip type |
4 |
| 57/58.3 |
Skip type stranding machines |
29 |
| 57/58.32 |
With cradle driving or holding means |
12 |
| 57/58.34 |
With cradle supported by tube section joint and/or tube supporting or driving disc |
17 |
| 57/58.36 |
With strand guiding means |
31 |
| 57/58.38 |
Rotating strand guide |
12 |
| 57/22 |
Splicing |
273 |
| 57/23 |
Implements |
26 |
| 57/2 |
Stapilizing |
51 |
| 57/78 |
Stopping or starting |
53 |
| 57/88 |
Spindle stopping |
55 |
| 57/89 |
Laterally movable spindle |
18 |
| 57/80 |
Strand controlled |
71 |
| 57/81 |
Electric |
155 |
| 57/83 |
Feeding means stopping |
26 |
| 57/84 |
Roll separating |
14 |
| 57/86 |
Severing |
42 |
| 57/87 |
With clamping |
52 |
| 57/85 |
Strand shifting |
2 |
| 57/82 |
Twisting couple and feed |
1 |
| 57/79 |
Traverse controlled |
2 |
| 57/309 |
Strand finishing or developing |
43 |
| 57/352 |
Strand guiding or guarding |
239 |
| 57/353 |
Catching or holding |
13 |
| 57/361 |
Lay head |
12 |
| 57/354 |
Separator or balloon limitor |
64 |
| 57/355 |
Having antifriction coating or material |
9 |
| 57/357 |
Having threading slot |
6 |
| 57/356 |
Readily removable or adjustable |
14 |
| 57/358 |
Threadboard |
5 |
| 57/359 |
Traversing |
3 |
| 57/360 |
With lifting means |
2 |
| 57/314 |
Stranding |
87 |
| 57/279 |
Threading up |
131 |
| 57/280 |
On false twist type machines |
59 |
| 57/299 |
Transfer tail |
23 |
| 57/282 |
Twist setting |
56 |
| 57/284 |
False twist crimp |
142 |
| 57/289 |
Fluid jet type |
76 |
| 57/285 |
Intertwine type |
15 |
| 57/291 |
Operator accommodating frame arrangement |
50 |
| 57/290 |
Plural twisting or heating |
123 |
| 57/286 |
With coating or impregnating |
27 |
| 57/287 |
With stretching |
57 |
| 57/288 |
Simultaneous type |
103 |
| 57/292 |
With coating or impregnating |
18 |
| 57/283 |
With twist variation |
29 |
| 57/58.49 |
Unitary multiple twist devices |
70 |
| 57/58.61 |
Plural co-axial loops |
8 |
| 57/58.63 |
Spaced, driven flyer members |
20 |
| 57/58.65 |
Take-up type |
26 |
| 57/58.67 |
With packaging by revolving strand guide and/or reciprocating package holder |
9 |
| 57/58.68 |
With slip connection between flier drive and package |
0 |
| 57/58.59 |
With false twist |
6 |
| 57/58.72 |
With package control means |
14 |
| 57/58.74 |
For vibration damping |
4 |
| 57/58.78 |
Gear |
2 |
| 57/58.79 |
Friction type |
0 |
| 57/58.81 |
Gravity |
5 |
| 57/58.76 |
Magnetic |
11 |
| 57/58.7 |
With strand feeding means |
47 |
| 57/58.83 |
With strand guiding, guarding, or controlling means |
109 |
| 57/58.86 |
Including tensioning means |
71 |
| 57/58.84 |
Including transitory strand-storage means |
16 |
| 57/58.52 |
With stranding or plying (e.g., doubling) |
108 |
| 57/58.54 |
Plural multiple twist devices |
21 |
| 57/58.55 |
Tandemly arranged |
12 |
| 57/58.57 |
With false twist |
6 |
| 57/2.3 |
Untwisting with separating |
13 |
| 57/2.5 |
With component winding |
3 |
| 57/1UN |
Untwisting |
44 |
| 57/20 |
Waxed ends |
2 |
| 57/31 |
Web material |
35 |
| 57/32 |
With coating or impregnating |
8 |
| 57/295 |
With coating or impregnating |
84 |
| 57/296 |
On twisting device |
49 |
| 57/297 |
Strand bonding or adhesion |
70 |
| 57/298 |
Wet drafting |
15 |
| 57/315 |
With drafting |
148 |
| 57/316 |
Domestic |
8 |
| 57/328 |
False twist type |
251 |
| 57/331 |
Friction type |
28 |
| 57/329 |
Interstage |
4 |
| 57/330 |
With self-contained drawing means |
4 |
| 57/319 |
Intermittent |
1 |
| 57/320 |
Mule type |
0 |
| 57/324 |
Faller control |
1 |
| 57/325 |
Copping rail |
1 |
| 57/326 |
Feed control |
1 |
| 57/321 |
Spindle drive control |
1 |
| 57/322 |
Quadrant |
0 |
| 57/323 |
Faller controlled |
0 |
| 57/317 |
Variable draft |
11 |
| 57/318 |
False twist type |
4 |
| 57/327 |
With carding |
22 |
| 57/350 |
With fluid jet |
248 |
| 57/351 |
With other type crimping or texturing |
75 |
| 57/276 |
With preparation for doffing- or donning-type operation |
107 |
| 57/277 |
Rail positioning |
12 |
| 57/278 |
Strand manipulation |
50 |
| 57/313 |
With rewinding |
31 |
| 57/310 |
With stretching |
64 |
| 57/311 |
With wire or strand preforming or shaping |
99 |
| 57/905 |
Bicomponent material |
36 |
| 57/904 |
Flame retardant |
31 |
| 57/907 |
Foamed and/or fibrillated |
24 |
| 57/908 |
Jet interlaced or intermingled |
124 |
| 57/906 |
Line appliances |
5 |
| 57/902 |
Reinforcing or tire cords |
327 |
| 57/903 |
Sewing threads |
25 |
| 57/200 |
Strand structure |
91 |
| 57/204 |
Alternately twisted |
63 |
| 57/205 |
Crimped or bulked type |
39 |
| 57/203 |
Chenille |
21 |
| 57/258 |
Coated or impregnated |
72 |
| 57/259 |
Web material |
12 |
| 57/210 |
Covered or wrapped |
242 |
| 57/232 |
Coated or impregnated |
91 |
| 57/234 |
Adhesively bonded |
46 |
| 57/233 |
Web material |
10 |
| 57/224 |
Discrete fiber wrap |
86 |
| 57/225 |
Elastomeric material core |
58 |
| 57/226 |
With crimped or bulked material |
29 |
| 57/227 |
Including crimped or bulked material |
42 |
| 57/228 |
Crimped or bulked core |
27 |
| 57/229 |
Including glass material |
52 |
| 57/211 |
Plied |
51 |
| 57/230 |
Plural wrapped layers |
87 |
| 57/231 |
Stranded layer |
43 |
| 57/235 |
Web material |
31 |
| 57/212 |
Wire wrapped |
151 |
| 57/223 |
Coated or impregnated |
53 |
| 57/213 |
Plural wire wrapped layer |
98 |
| 57/217 |
Coated or impregnated |
53 |
| 57/215 |
Including nonround cross section |
48 |
| 57/214 |
Stranded layers |
45 |
| 57/216 |
With core other than wire |
34 |
| 57/218 |
Stranded wire-wrapped layer |
57 |
| 57/221 |
Coated or impregnated |
37 |
| 57/219 |
Including nonround cross section |
24 |
| 57/220 |
With core other than wire |
28 |
| 57/222 |
With core other than wire |
31 |
| 57/201 |
Endless bands |
12 |
| 57/206 |
Longitudinal variation |
76 |
| 57/207 |
Covered or wrapped type |
85 |
| 57/208 |
Crimped or bulked type |
117 |
| 57/209 |
Slub type |
29 |
| 57/243 |
Multifilament yarns |
157 |
| 57/250 |
Coated impregnated |
76 |
| 57/251 |
Adhesively bonded |
56 |
| 57/244 |
Composite |
124 |
| 57/245 |
Crimped or bulked |
101 |
| 57/246 |
Crimped or bulked |
76 |
| 57/247 |
Twist crimped type |
89 |
| 57/249 |
Glass material |
34 |
| 57/248 |
Particular cross section |
78 |
| 57/236 |
Plied |
105 |
| 57/237 |
Cabled or cord type (i.e., plied plies) |
83 |
| 57/241 |
Coated or impregnated |
36 |
| 57/242 |
Adhesively bonded |
32 |
| 57/238 |
Composite |
90 |
| 57/239 |
Crimped or bulked |
34 |
| 57/240 |
Glass material |
17 |
| 57/202 |
Splices |
36 |
| 57/252 |
Staple fiber blends |
64 |
| 57/257 |
Coated |
27 |
| 57/254 |
Crimped or bulked fibers |
32 |
| 57/253 |
Particular cross sections |
22 |
| 57/255 |
Synthetic material |
63 |
| 57/256 |
With natural fibers |
39 |
| 57/260 |
Web material |
33 |
