US4828909A
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US
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Elastomer-coated fabric products and process for producing the same
Assignee: Highland Industries Inc
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Filing: 1987-12-17
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Granted: 1989-05-09
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Expires: 2007-12-17
Abstract
Abstract Elastomer-coated fabric products having predetermined potential extension in the fabric's machine direction and processes for producing the same. The fabric product of the invention preferably includes an elastomer-coated warp-knit, weft-insert fabric whereby the warp knit yarns provide a first potential elongation (as by selection of the type and/or denier of yarns employed). The fabric is compressed in the machine direction (as by overfeeding the fabric to a tenter frame during production) so as to provide a second potential elongation, and is maintained in its compressed state by virtue of the elastomer coating thereon. The first and second elongation potentials thus collectively establish the total potential elongation for the fabric in the machine direction. The cross-machine yarns, however, are chosen for their inextensible properties so that the fabric product of this invention will provide lateral support to end use products employing the same as a reinforcing medium, such as tires, power transmission belts, conveyor belts, and the like.
Inventors
- 👤 Delbert A. Davis
- 👤 James N. McGee, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:47
CPC Classifications
B; B29; B29D; B29D29/00; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/22; B29C70/28; B29C70/54; B29C70/56; B29K; B29K2021/00; B29L; B29L2030/00; B29L2031/00; B29L2031/709; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2377; Y10T442/40; Y10T442/45; Y10T442/456; Y10T442/494
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
41 words
An elastomer-coated fabric product comprising a knit base fabric and an elastomeric coating layer on said base fabric, said knit base fabric being compressed in the machine direction thereof and maintained in said compressed state by means of said elastomeric coating.
Claim 2
Dependent Claim
41 words
An elastomer-coated fabric product comprising a knit base fabric and an elastomeric coating layer on said base fabric, said knit base fabric being compressed in the machine direction thereof and maintained in said compressed state by means of said elastomeric coating.
Claim 3
Dependent Claim
17 words
A fabric product as in claim 1, wherein said base fabric is a warp-knit, weft inserted fabric.
Claim 4
Dependent Claim
23 words
A fabric product as in claim 2, wherein the weft yarns of said fabric are biased with respect to the warp-knit yarns thereof.
Claim 5
Dependent Claim
23 words
A fabric product as in claim 3, wherein said warp and weft yarns are selected from the group of natural and synthetic yarns.
Claim 6
Dependent Claim
28 words
A fabric product as in claim 1, wherein said elastomeric coating is present in an amount of about 30% to about 400% by weight of said base fabric.
Claim 7
Dependent Claim
19 words
A fabric product as in claim 1, which exhibits a potential extension of between about 30% to about 200%.
Claim 8
Dependent Claim
87 words
An elastomer-coated fabric product comprising an elastomeric layer bonded to a warp-knit fabric, said fabric including warp knit yarns providing a predetermined amount of potential elongation to the fabric, and substantially inextensible weft yarns, said fabric being in a compressed state in the warp-wise direction to provide for an additional predetermined amount of potential elongation to the fabric in excess of that provided by means of said warp knit yarns alone, and said compressed state being maintained by means of said elastomeric layer bonded to said fabric.
Claim 9
Dependent Claim
87 words
An elastomer-coated fabric product comprising an elastomeric layer bonded to a warp-knit fabric, said fabric including warp knit yarns providing a predetermined amount of potential elongation to the fabric, and substantially inextensible weft yarns, said fabric being in a compressed state in the warp-wise direction to provide for an additional predetermined amount of potential elongation to the fabric in excess of that provided by means of said warp knit yarns alone, and said compressed state being maintained by means of said elastomeric layer bonded to said fabric.
Claim 10
Dependent Claim
96 words
An elastomeric product including a fabric reinforcing layer which is comprised of a warp-knit, weft-inserted fabric whose warp knit yarns have a predetermined amount of potential elongation and whose weft inserted yarns are substantially inextensible and are biased with respect to said warp knit yarns, said fabric being in a compressed state in the warp-wise direction to provide for an additional predetermined amount of elongation in excess of that provided by means of said warp knit yarns alone, and said product including an elastomeric coating on said fabric to maintain the same in said compressed state.
Claim 11
Dependent Claim
96 words
An elastomeric product including a fabric reinforcing layer which is comprised of a warp-knit, weft-inserted fabric whose warp knit yarns have a predetermined amount of potential elongation and whose weft inserted yarns are substantially inextensible and are biased with respect to said warp knit yarns, said fabric being in a compressed state in the warp-wise direction to provide for an additional predetermined amount of elongation in excess of that provided by means of said warp knit yarns alone, and said product including an elastomeric coating on said fabric to maintain the same in said compressed state.
Claim 12
Dependent Claim
27 words
A product as in claim 7 or 8, wherein said elastomer is present in an amount of about 30% to about 400% by weight of said fabric.
Claim 13
Dependent Claim
23 words
A product as in claim 7 or 8, wherein said potential extension of said fabric product is between about 30% to about 200%.
Claim 14
Dependent Claim
24 words
A product as in claim 7 or 8, wherein said warp and weft yarns are selected from the group of natural and synthetic yarns.
Claim 15
Dependent Claim
85 words
A coated warp-knit, weft-inserted fabric which is comprised of a warp-knit, weft-inserted base fabric whose warp knit yarns have a predetermined amount of potential elongation and whose weft inserted yarns are substantially inextensible, said base fabric being in a compressed state in the warp-wise direction to provide for an additional predetermined amount of elongation in excess of that provided by means of said warp knit yarns alone, and said coated fabric including a coating on said fabric to maintain the same in said compressed state.
Claim 16
Dependent Claim
85 words
A coated warp-knit, weft-inserted fabric which is comprised of a warp-knit, weft-inserted base fabric whose warp knit yarns have a predetermined amount of potential elongation and whose weft inserted yarns are substantially inextensible, said base fabric being in a compressed state in the warp-wise direction to provide for an additional predetermined amount of elongation in excess of that provided by means of said warp knit yarns alone, and said coated fabric including a coating on said fabric to maintain the same in said compressed state.
Claim 17
Dependent Claim
30 words
A product as in claim 12, wherein said coating is an elastomer material which is present in an amount of about 30% to about 400% by weight of said fabric.
Claim 18
Dependent Claim
21 words
A product as in claim 12, wherein said potential extension of said fabric product is between about 30% to about 200%.
Claim 19
Dependent Claim
22 words
A product as in claim 12, wherein said warp and weft yarns are selected from the group of natural and synthetic yarns.
Claim 20
Dependent Claim
22 words
A fabric-reinforced product comprising a polymer matrix, and a fabric reinforcing layer, which layer is a coated fabric as in claim 12.
Claim 21
Dependent Claim
49 words
A process for producing an elastomer-coated fabric product comprising the steps of: (a) compressing a knit base fabric in its machine direction so that said base fabric is in a compressed state; and (b) maintaining said knit fabric in its compressed state by means of an elastomeric coating thereon.
Claim 22
Dependent Claim
49 words
A process for producing an elastomer-coated fabric product comprising the steps of: (a) compressing a knit base fabric in its machine direction so that said base fabric is in a compressed state; and (b) maintaining said knit fabric in its compressed state by means of an elastomeric coating thereon.
Claim 23
Dependent Claim
37 words
A process as in claim 17 wherein step (b) is practiced by applying a liquid elastomeric coating to the base fabric prior to its compression according to step (a), and then drying said coated compressed base fabric.
Claim 24
Dependent Claim
32 words
A process as in claim 17, wherein step (b) is practiced by applying a liquid elastomeric coating to the base fabric after step (a), and then drying said coated compressed base fabric.
Claim 25
Dependent Claim
53 words
A process for producing an elastomer-coated fabric product comprising the sequential steps of: (a) coating a base fabric with a liquid elastomer material; (b) compressing the thus coated base fabric while the elastomer material is still liquid; and then (c) solidifying the elastomer coating to maintain said base fabric in said compressed state.
Claim 26
Dependent Claim
53 words
A process for producing an elastomer-coated fabric product comprising the sequential steps of: (a) coating a base fabric with a liquid elastomer material; (b) compressing the thus coated base fabric while the elastomer material is still liquid; and then (c) solidifying the elastomer coating to maintain said base fabric in said compressed state.
Claim 27
Dependent Claim
33 words
A process as in claim 20, wherein step (a) is practiced by feeding a warp-knit fabric to a coating zone and then coating the fabric with said elastomer material in said coating zone.
Claim 28
Dependent Claim
25 words
A process as in claim 21, wherein prior to step (a) there is practiced the step of producing a warp-knit fabric in a knitting zone.
Claim 29
Dependent Claim
15 words
A process as in claim 22, wherein said warp-knit fabric is a warp-knit weft-inserted fabric.
Claim 30
Dependent Claim
20 words
A process as in claim 20, wherein step (c) is practiced by drying said elastomer coating in a drying zone.
Claim 31
Dependent Claim
19 words
A process as in claim 20 further comprising treating said fabric to obtain maximum adhesion with a polymer matrix.
Claim 32
Dependent Claim
30 words
A process as in claim 20, wherein step (b) is practiced by overfeeding the base fabric to a tenter frame so as to compress the fabric in the machine direction.
Claim 33
Dependent Claim
51 words
A process as in claim 26, wherein said base fabric is a warp-knit, weft-inserted fabric whose weft insert yarns are biased with respect to its warp knit yarns, and wherein said weft yarns are substantially inextensible and said warp knit yarns exhibit a predetermined amount of extension in said machine direction.
Claim 34
Dependent Claim
17 words
A process as in claim 20, wherein said liquid elastomer at least partially impregnates said base fabric.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |