US4370784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belting fabric
Assignee: Invista North America LLC
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Filing: 1981-04-07
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Granted: 1983-02-01
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Expires: 2001-04-07
Abstract
Abstract An improved woven fabric that is relatively stiff in the filling direction and relatively flexible in the warp direction by virtue of the filling yarns in the fabric being stiffer than the warp yarns in the fabric, wherein the improvement comprises the filling yarns comprise resin bonded multifilament yarns. The product has particular utility in seat belt safety harnesses with belt coiling mechanisms. It is preferred that the resin be a polyurethane in an amount of 0.4-2.0 weight percent; that the filling yarns be twistless polyester multifilament. The process involves the application of an uncured resin to the filling yarns prior to weaving, and curing the uncured resin, preferably after weaving during an otherwise conventional dyeing procedure.
Inventors
- 👤 John Turnbull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:38
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/12; D; D03; D03D; D03D1/00; D03D1/0005; D03D15/00; D03D15/20; D03D15/283; D03D15/30; D03D15/37; D03D15/40; D03D15/47; D03D15/50; D03D15/573; D10; D10B; D10B2321/00; D10B2321/04; D10B2321/041; D10B2331/00; D10B2331/04; D10B2331/10; D10B2401/00; D10B2401/06; D10B2401/062; D10B2505/00; D10B2505/12; D10B2505/122
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
149 words
A process for preparing an improved woven coilable belting fabric for use in a seat belt harness, in which the warp yarns constitute at least 70 percent of the fabric by weight, by weaving warp yarns along the length of the belt and multifilament filling yarns transverse to the length of the belt, the improved belt having reduced tendency to twist and jam a conventional retractor mechanism that coils the belt upon activation of a retraction mechanism, which process comprises the steps of: (i) applying an uncured heat-curable resin to said multifilament filling yarns prior to weaving; (ii) weaving a fabric wherein said filling yarns constitute less than 30 percent by weight of said fabric; and (iii) curing said uncured resin after weaving, whereby said woven coilable fabric has both high lateral stiffness and high conversion efficiency load from the individual warp yarns to fabric along the warp yarns.
Claim 2
Dependent Claim
149 words
A process for preparing an improved woven coilable belting fabric for use in a seat belt harness, in which the warp yarns constitute at least 70 percent of the fabric by weight, by weaving warp yarns along the length of the belt and multifilament filling yarns transverse to the length of the belt, the improved belt having reduced tendency to twist and jam a conventional retractor mechanism that coils the belt upon activation of a retraction mechanism, which process comprises the steps of: (i) applying an uncured heat-curable resin to said multifilament filling yarns prior to weaving; (ii) weaving a fabric wherein said filling yarns constitute less than 30 percent by weight of said fabric; and (iii) curing said uncured resin after weaving, whereby said woven coilable fabric has both high lateral stiffness and high conversion efficiency load from the individual warp yarns to fabric along the warp yarns.
Claim 3
Dependent Claim
12 words
The process of claim 1, wherein said cured resin comprises a polyurethane.
Claim 4
Dependent Claim
29 words
The process of claim 1, which comprises applying said uncured curable resin dispersed in a diluent, said filling yarns comprising less than 10 percent by weight of said diluent.
Claim 5
Dependent Claim
31 words
The process of claim 3, wherein said filling yarns comprise less than 5 percent by weight of said diluent, and less than 2 percent by weight of said uncured curable resin.
Claim 6
Dependent Claim
31 words
The process of claim 4, wherein said filling yarns comprise less than 5 percent by weight of said diluent, and less than 1 percent by weight of said cured curable resin.
Claim 7
Dependent Claim
12 words
The process of claim 1, wherein said resin comprises polyvinyl chloride-acrylate copolymer.
Claim 8
Dependent Claim
12 words
The process of claim 1, which comprises applying a plasticized polyvinyl chloride.
Claim 9
Dependent Claim
20 words
The process of claim 1, which comprises applying a polymeric resin as particles having diameters predominantly less than 20 microns.
Claim 10
Dependent Claim
15 words
The process of claim 1, which comprises curing said curable resin after weaving said fabric.
Claim 11
Dependent Claim
15 words
The process of claim 1, which comprises curing said curable resin before weaving said fabric.
Claim 12
Dependent Claim
14 words
The process of claim 1, which comprises simultaneously dyeing and curing said curable resin.
Claim 13
Dependent Claim
21 words
The process of claim 1, which comprises applying said curable resin by means of a rotating roll having a ceramic surface.
Claim 14
Dependent Claim
20 words
The process of claim 1, which comprises applying said curable resin simultaneously to numerous first yarns during a beaming operation.
References Cited (Backward Citations)
US2639852A
Cited
US3296062A
Cited
US3606914A
Cited
US3624016A
Cited
US4002791A
Cited
US4107371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |