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US4530868A
Expired / Lapsed
US
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Elastomer-coated cloth composite
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1983-12-14
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Granted: 1985-07-23
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Expires: 2003-12-14
Abstract
Abstract This invention describes a water-impermeable elastomer-coated cloth composite in which the end sections of mutually adjacent elastomer-coated cloths are overlapped and sewn together in such a way that the thread passes up and down through this overlapped section. After a seam is sewn together, it is covered by an adhesive tape applied so that it extends over the sewn section of the seam and onto the portion of each section of the cloth beyond the sewn section to form a strong, watertight, airtight composite.
Inventors
- 👤 Hideo Shinmi
- 👤 Yoshitaka Kubota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:43
CPC Classifications
B; B32; B32B; B32B3/00; A; A41; A41D; A41D27/00; A41D27/24; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/92; Y10T; Y10T428/00; Y10T428/19; Y10T428/192; Y10T428/197; Y10T428/24; Y10T428/24033
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
A water-impermeable elastomer-coated cloth composite consisting essentially of a first water-impermeable elastomer-coated cloth and a second water-impermeable elastomer-coated cloth, ends of the mutually adjacent first and second cloth being in overlapped contact, the overlapped ends being stitched together in such a way that a sewn portion is made by thread passing up and down through the overlapped ends, and in addition, adhesive tape, of the type which bonds upon contact to a surface without requiring a cure time, of such a width that it is adhered over the sewn portion and is adhered to both the first water-impermeable elastomer-coated cloth and the second water-impermeable elastomer-coated cloth beyond the sewn portion, the composite being of sufficient size to produce building roofs and large-scale tent material.
Claim 2
Dependent Claim
124 words
A water-impermeable elastomer-coated cloth composite consisting essentially of a first water-impermeable elastomer-coated cloth and a second water-impermeable elastomer-coated cloth, ends of the mutually adjacent first and second cloth being in overlapped contact, the overlapped ends being stitched together in such a way that a sewn portion is made by thread passing up and down through the overlapped ends, and in addition, adhesive tape, of the type which bonds upon contact to a surface without requiring a cure time, of such a width that it is adhered over the sewn portion and is adhered to both the first water-impermeable elastomer-coated cloth and the second water-impermeable elastomer-coated cloth beyond the sewn portion, the composite being of sufficient size to produce building roofs and large-scale tent material.
Claim 3
Dependent Claim
18 words
The water-impermeable elastomer-coated cloth composite according to claim 1 in which the thread is an inorganic fiber thread.
Claim 4
Dependent Claim
27 words
The water-impermeable elastomer-coated cloth composite according to claim 2 in which the first and second water-impermeable elastomer-coated cloths are a glass fiber cloth coated with silicone rubber.
Claim 5
Dependent Claim
27 words
The water-impermeable elastomer-coated cloth composite according to claim 2 in which the first and second water-impermeable elastomer-coated cloths are a metal fiber cloth coated with silicone rubber.
Claim 6
Dependent Claim
23 words
The water-impermeable elastomer-coated cloth composite according to claim 1 in which the adhesive tape is a polytetrafluoroethylene film tape covered with silicone adhesive.
Claim 7
Dependent Claim
26 words
The water-impermeable elastomer-coated cloth composite according to claim 1 in which the adhesive tape is a cured silicone-coated inorganic fiber cloth tape covered with silicone adhesive.
Claim 8
Dependent Claim
131 words
A process for producing a water-impermeable, elastomer-coated cloth composite, being of sufficient size to produce building roofs and large-scale tent material, consisting essentially of placing an end of a first water-impermeable elastomer-coated cloth and an end of a second water-impermeable elastomer-coated cloth in mutually adjacent overlapping contact, stitching the overlapped ends together in such a way that thread passes up and down through this overlapped portion to give a sewn portion, and, in addition, adhering adhesive tape, of the type which bonds upon contact to a surface without requiring a cure time, over the sewn portion, the adhesive tape being of such a width that it is adhered over the sewn portion and adhered to both the first water-impermeable elastomer-coated cloth and the second water-impermeable elastomer-coated cloth beyond the overlapped portion.
Claim 9
Dependent Claim
131 words
A process for producing a water-impermeable, elastomer-coated cloth composite, being of sufficient size to produce building roofs and large-scale tent material, consisting essentially of placing an end of a first water-impermeable elastomer-coated cloth and an end of a second water-impermeable elastomer-coated cloth in mutually adjacent overlapping contact, stitching the overlapped ends together in such a way that thread passes up and down through this overlapped portion to give a sewn portion, and, in addition, adhering adhesive tape, of the type which bonds upon contact to a surface without requiring a cure time, over the sewn portion, the adhesive tape being of such a width that it is adhered over the sewn portion and adhered to both the first water-impermeable elastomer-coated cloth and the second water-impermeable elastomer-coated cloth beyond the overlapped portion.
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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) | 1988-07-22 | 1989-01-21 | 1989-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-22 | 1993-01-21 | 1993-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-22 | 1997-01-21 | 1997-07-23 | $7700.00 | Window Closed / Lapsed |