US4079579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveller
Assignee: Coats and Clark Inc
•
Filing: 1976-02-04
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Granted: 1978-03-21
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Expires: 1996-02-04
Abstract
Abstract A traveller for ring spinning and twisting is provided comprising a high modulus/low friction resin blended with a fibrous whisker material. A lubricant is usually added to the composition. The resulting traveller is characterized by a wear-life hitherto unavailable that is, a wear-life six to eight times greater than that of conventional travellers.
Inventors
- 👤 Albert Richard Cory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:18
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/02; D01H7/52; D01H7/60; D01H7/604
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
42 words
A traveller for ring spinning and twisting comprising (1) a high modulus low friction resin selected from the group consisting of acetals, polystyrenes, styrene acrylonitriles, acrylonitrile butadienestyrenes, polycarbonates, polyphenylene sulfides, nylons and thermoplastic polyesters blended with (2) a fibrous carbon whisker material.
Claim 2
Dependent Claim
42 words
A traveller for ring spinning and twisting comprising (1) a high modulus low friction resin selected from the group consisting of acetals, polystyrenes, styrene acrylonitriles, acrylonitrile butadienestyrenes, polycarbonates, polyphenylene sulfides, nylons and thermoplastic polyesters blended with (2) a fibrous carbon whisker material.
Claim 3
Dependent Claim
17 words
A traveller according to claim 1 wherein the resinous material is a nylon or a polyphenylene sulfide.
Claim 4
Dependent Claim
17 words
A traveller according to claim 2 wherein the nylon is a 6/6 nylon or a 6/12 nylon.
Claim 5
Dependent Claim
14 words
A traveller according to claim 2 wherein the resinous material is a polyphenylene sulfide.
Claim 6
Dependent Claim
25 words
A traveller according to claim 1 wherein the resinous material is present in amounts varying between about 50 and 80% by weight of the composition.
Claim 7
Dependent Claim
25 words
A traveller according to claim 5 wherein the resinous material is present in amounts varying between about 60 and 70%, by weight, of the composition.
Claim 8
Dependent Claim
28 words
A traveller according to claim 1 wherein the fibrous carbon whisker material is present in an amount varying between about 20 and 40%, by weight, of the composition.
Claim 9
Dependent Claim
27 words
A traveller according to claim 7 wherein the fibrous carbon whisker material is present in amounts varying between about 25 and 30%, by weight, of the composition.
Claim 10
Dependent Claim
44 words
A traveller according to claim 1 wherein a lubricant is blended into the composition containing the high modulus low friction resin and the fibrous whisker material, said lubricant being present in an amount varying between about 1 and 20%, by weight, of the composition.
Claim 11
Dependent Claim
25 words
A traveller according to claim 9 wherein the lubricant is present in an amount varying between about 5 and 15%, by weight, of the composition.
Claim 12
Dependent Claim
25 words
A traveller according to claim 9 wherein the lubricant is a member selected from the group consisting of molybdenum disulfide, silicon and a fluorinated polymer.
Claim 13
Dependent Claim
12 words
A traveller according to claim 9 wherein the lubricant is a polytetrafluoroethylene.
Claim 14
Dependent Claim
17 words
A traveller according to claim 1 comprising between about 60 and 70% nylon and the remainder carbon.
Claim 15
Dependent Claim
29 words
A traveller according to claim 1 comprising 55% nylon, by weight, of the composition, 30% carbon, by weight, of the composition and 15% polytetrafluoroethylene, by weight, of the composition.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |