Patent US4731083A successfully refreshed from Google Patents.
US3948293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose construction and utilization
Assignee: Goodall Rubber Co
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Filing: 1974-04-19
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Granted: 1976-04-06
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Expires: 1994-04-19
Abstract
Abstract A hose has an extruded tube formed of a blend of polyethylene and butyl rubber, a braided external reinforcement layer and a film applied by coating to unify and give dimensional stability to the elements of the cover. The hose is used in LP gas installations due to the non-leaching and heat-resistant characteristics of the tube material.
Inventors
- 👤 Ezra Lovell Bixby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:32
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/085; B29K; B29K2021/00; B29K2023/00; B29K2023/04; B29K2023/06; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29K2105/0827; B29K2995/00; B29K2995/0012; B29K2995/0016
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
79 words
A plastic hose comprising: a tubular body of an extrudable composition of polyethylene and butyl rubber having a fluid-carrying passage therewithin, said composition having a ratio by weight of polyethylene to butyl rubber of about 2:1, a tubular braided cover of textile yarns surrounding the tubular body and conforming to the external surface thereof, a film surrounding the cover to unify the elements of the cover and provide an impervious barrier at the outermost exposed surface of the hose.
Claim 2
Dependent Claim
79 words
A plastic hose comprising: a tubular body of an extrudable composition of polyethylene and butyl rubber having a fluid-carrying passage therewithin, said composition having a ratio by weight of polyethylene to butyl rubber of about 2:1, a tubular braided cover of textile yarns surrounding the tubular body and conforming to the external surface thereof, a film surrounding the cover to unify the elements of the cover and provide an impervious barrier at the outermost exposed surface of the hose.
Claim 3
Dependent Claim
23 words
A hose according to claim 1 wherein neither the film nor the cover are bonded to the external surface of the tubular body.
Claim 4
Dependent Claim
30 words
A hose according to claim 1 wherein the film has a different color from the textile yarns of the cover to facilitate visual detection of undesired discontinuities in the film.
Claim 5
Dependent Claim
26 words
A hose according to claim 1 wherein the cover is a tubular braided element which covers the entirety of the exterior surface of the tubular body.
Claim 6
Dependent Claim
23 words
A hose according to claim 4 wherein neither the film nor the cover are bonded to the external surface of the tubular body.
Claim 7
Dependent Claim
30 words
A hose according to claim 4 wherein the film has a different color from the textile yarns of the cover to facilitate visual detection of undesired discontinuities in the film.
Claim 8
Dependent Claim
23 words
A hose according to claim 6 wherein neither the film nor the cover are bonded to the external surface of the tubular body.
References Cited (Backward Citations)
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Cited
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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) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |