Patent US3948293A 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 08:04
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)
CA753941A
Cited
US2383733A
Cited
US3018800A
Cited
US2830919A
Cited
US3034943A
Cited
US3184522A
Cited
US3245431A
Cited
US3604461A
Cited
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 |