US3871946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel high temperature resistant fabrics
Assignee: Albany International Corp
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Filing: 1973-11-30
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Granted: 1975-03-18
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Expires: 1993-11-30
Abstract
Abstract A novel open weave fabric is disclosed which comprises in a leno weave, warp yarns of polyamide fiber and crossover yarns of polyamide fiber braided over a core of glass fibers and/or metal wire. The fabric weave is then finished with a coating of a high temperature resistant resin selected from polyamides, polyimides, polyamide-imide or derivatives thereof. The fabric of the invention is useful for fabricating conveyor belts employed in conveying textiles through dryers and in like applications.
Inventors
- 👤 Eric R Romanski
- 👤 J Drew Horn
- 👤 William H Dutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:58
CPC Classifications
D; D06; D06N; D06N7/00; D03; D03D; D03D1/00; D03D1/0094; D03D15/00; D03D15/20; D03D15/283; D03D15/40; D03D15/50; D03D15/513; D03D15/573; D03D15/60; D03D15/67; D03D19/00; D03D25/00; D03D3/00; D03D3/04; D06N3/00; D06N3/0002; D06N2201/00; D06N2201/02; D06N2201/0263; D06N2201/08; D06N2201/082; D10; D10B; D10B2101/00; D10B2101/02; D10B2101/06; D10B2101/20; D10B2331/00; D10B2331/02; Y; Y10; Y10T; Y10T442/00; Y10T442/30; Y10T442/3049; Y10T442/3065; Y10T442/313; Y10T442/3138; Y10T442/3179; Y10T442/322; Y10T442/3228; Y10T442/3236; Y10T442/3252
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
74 words
A HIGH TEMPERATURE RESISTANT OPEN WEAVE FABRIC WHICH COMPRISES: IN A LENO WEAVE, I. WARP YARNS COMPRISING A HIGH TEMPERATURE RESISTANT POLYAMIDE FIBER AND II. CROSSOVER YARNS WHICH COMPRISE A HIGH TEMPERATURE RESISTANT POLYAMIDE FIBER BRAIDED OVER A CURE SELECTED FROM GLASS FIBER, METAL WITE AND MIXTURES THEREOF; SAID WRAP YARNS AND SAID CROSSOVER YARNS OF SAID WEAVE BEING COATED WITH A HIGH TEMPERATURE RESISTANT RESIN SELECTED FROM POLYAMIDES, POLYIMIDES, POLYAMIDEIMIDES AND MIXTURE THEREOF.
Claim 2
Dependent Claim
74 words
A HIGH TEMPERATURE RESISTANT OPEN WEAVE FABRIC WHICH COMPRISES: IN A LENO WEAVE, I. WARP YARNS COMPRISING A HIGH TEMPERATURE RESISTANT POLYAMIDE FIBER AND II. CROSSOVER YARNS WHICH COMPRISE A HIGH TEMPERATURE RESISTANT POLYAMIDE FIBER BRAIDED OVER A CURE SELECTED FROM GLASS FIBER, METAL WITE AND MIXTURES THEREOF; SAID WRAP YARNS AND SAID CROSSOVER YARNS OF SAID WEAVE BEING COATED WITH A HIGH TEMPERATURE RESISTANT RESIN SELECTED FROM POLYAMIDES, POLYIMIDES, POLYAMIDEIMIDES AND MIXTURE THEREOF.
Claim 3
Dependent Claim
22 words
A fabric according to claim 1 wherein said warp yarns are polyamide fibers obtained from polyamide polymers of m-phenylenediamine and isophthalyol chloride.
Claim 4
Dependent Claim
42 words
A fabric according to claim 1 wherein the polyamide fiber of said crossover yarns is obtained from the polymer of m-phenylenediamine and isophthalyol chloride and the core of said crossover yarns comprise multiple glass fibers and a single strand of metal wire.
Claim 5
Dependent Claim
15 words
A fabric according to claim 3 wherein said metal wire is a phosphorous bronze wire.
Claim 6
Dependent Claim
12 words
A fabric according to clAim 1 wherein said resin is a polyamide-imide.
Claim 7
Dependent Claim
12 words
A fabric according to claim 5 wherein said resin is a polytrimellitamide.
Claim 8
Dependent Claim
20 words
A fabric according to claim 5 wherein said resin is the reaction product of p,p''-diaminodiphenylmethane and trimellitic anhydride acid chloride.
Claim 9
Dependent Claim
22 words
A fabric according to claim 1 wherein said coating comprises from 2.5 percent to 50 percent of the weight of said fabric.
Claim 10
Dependent Claim
22 words
A fabric according to claim 1 wherein said coating comprises from 2.5 percent to 15 percent of the weight of said fabric.
Claim 11
Dependent Claim
51 words
A fabric according to claim 1 wherein said polyamide fibers (i) and (ii) have a denier of from about 840 to about 1,680, a breaking strength of between about 40 to about 20 lbs. (min.) and an elongation of between about 10 percent to 7 percent at 3 gms. per denier.
Claim 12
Dependent Claim
80 words
An endless dryer belt which comprises a high temperature resistant leno weave fabric having i. warp yarns comprising a high temperature resistant polyamide fiber; ii. crossover yarns which comprise a high temperature resistant polyamide fiber braided over a core selected from glass fiber, metal wire and mixtures thereof; iii. a coating on said warp yarns and said crossover yarns of a high temperature resistant resin selected from polyamides, polyimides, polyamides-imides and mixtures thereof; and iv. the ends thereof joined together.
Claim 13
Dependent Claim
80 words
An endless dryer belt which comprises a high temperature resistant leno weave fabric having i. warp yarns comprising a high temperature resistant polyamide fiber; ii. crossover yarns which comprise a high temperature resistant polyamide fiber braided over a core selected from glass fiber, metal wire and mixtures thereof; iii. a coating on said warp yarns and said crossover yarns of a high temperature resistant resin selected from polyamides, polyimides, polyamides-imides and mixtures thereof; and iv. the ends thereof joined together.
References Cited (Backward Citations)
US2679677A
Cited
US3595730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |