US4357387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant insulating fabric compositions prepared by plasma spraying
Assignee: Label Aire Inc
•
Filing: 1982-01-12
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Granted: 1982-11-02
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Expires: 2002-01-12
Abstract
Abstract Refractory coated fabric compositions having a thickness substantially thinner than those prepared heretofore can be provided by forming the refractory coating by a plasma spraying technique.
Inventors
- 👤 Stephen George
- 👤 Thomas H. George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:56
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5025; D; D04; D04H; D04H11/00; D06; D06M; D06M10/00; D06M10/04; D06M10/06; D06N; D06N7/00; D06N7/0005; D06N7/0039; D06N7/0042; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2631; Y10T442/273
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
70 words
A method of preparing a flexible refractory coated fabric composition which comprises: (a) developing a thermal plasma spray, (b) introducing finely divided refractory materials into said thermal plasma spray, and (c) directing said thermal plasma spray at the exposed surface of a non-rigid base fabric whereby a coating of said refractory materials is formed on said fabric, said refractory materials being capable of fusing with said fabric at elevated temperatures.
Claim 2
Independent Claim
70 words
A method of preparing a flexible refractory coated fabric composition which comprises: (a) developing a thermal plasma spray, (b) introducing finely divided refractory materials into said thermal plasma spray, and (c) directing said thermal plasma spray at the exposed surface of a non-rigid base fabric whereby a coating of said refractory materials is formed on said fabric, said refractory materials being capable of fusing with said fabric at elevated temperatures.
Claim 3
Dependent Claim
24 words
A method according to claim 1 wherein the coating of said refractory materials has a thickness of between about 1 and about 10 mils.
Claim 4
Dependent Claim
17 words
A method according to claim 2 wherein the thickness is between about 1 and about 3 mils.
Claim 5
Dependent Claim
22 words
A method according to claim 1 wherein the coating of refractory materials comprises a light density layer and a heavier density layer.
Claim 6
Dependent Claim
29 words
A method according to claim 1 including the following additional step: (d) forming an abrasion resistant polymeric coating on the outer surface of said coating of said refractory materials.
Claim 7
Dependent Claim
26 words
A method according to claim 1 including the following additional step: (e) applying an adhesive to the outer surface of said coating of said refractory materials.
Claim 8
Dependent Claim
21 words
A method according to claim 1 wherein the coating of said refractory materials is formed on both sides of said fabric.
Claim 9
Dependent Claim
48 words
A method according to claim 7 including the following additional steps: (f) forming an abrasion resistant polymeric coating on the outer surface of one of the coatings of said refractory materials, and (g) applying an adhesive to the outer surface of the other coating of said refractory materials.
Claim 10
Dependent Claim
15 words
A method according to claim 1 wherein the non-rigid base fabric is a woven fabric.
Claim 11
Dependent Claim
19 words
A method according to claim 1 wherein the non-rigid base fabric is a knitted fabric or a non-woven web.
Claim 12
Dependent Claim
26 words
A method according to claim 9 wherein the base fabric is made from fiberglass yarn, Kevlar yarn or a mixture of fiberglass yarn and Kevlar yarn.
Claim 13
Dependent Claim
26 words
A method according to claim 10 wherein the base fabric is made from fiberglass yarn, Kevlar yarn or a mixture of fibeglass yarn and Kevlar yarn.
Claim 14
Dependent Claim
20 words
A method according to claim 1 wherein the refractory materials are alumina, zirconia, calcium silicate, silicon dioxide or mixtures thereof.
Claim 15
Dependent Claim
17 words
A method according to claim 1 wherein the refractory materials are silicon carbide, or thermal carbon black.
Claim 16
Dependent Claim
30 words
A method according to claim 1 wherein the base fabric is woven, knitted or non-woven and is made from quartz yarn or a mixture of quartz yarn and Kelvar yarn.
Claim 17
Dependent Claim
27 words
A method according to claim 1 wherein the base fabric is a non-woven web or paper of alumina silica fibers, alumina fibers, zirconia fibers or mixtures thereof.
Claim 18
Dependent Claim
29 words
A refractory coated fabric composition prepared according to the method of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 or 16.
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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) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |