Patent US3918499A successfully refreshed from Google Patents.
US3918499A
Expired / Lapsed
US
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Hose
Assignee: Gates Rubber Co
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Filing: 1973-02-23
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Granted: 1975-11-11
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Expires: 1993-02-23
Abstract
Abstract A heat setting polymeric hose having a high pack, textile reinforcement that shrinks at a temperature at least equal to the heat setting temperature of the polymeric. The hose is made by twining a heat shrinkable and generally untwisted textile reinforcement around a heat curable polymeric tube; applying an adhesive and heat setting polymeric cover over the reinforcement; and heat setting or curing the polymeric while simultaneously shrinking the reinforcement to a predetermined position within the hose.
Inventors
- 👤 Charles D Higbee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:07
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/085; B29K; B29K2021/00; B29K2105/00; B29K2105/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A flexible hose comprising: an initially heat curable rubber tube; one braided ply of essentially zero twist heat shrinkable, initially greige polyester yarn strands comprised of fibers disposed over and substantially covering said tube to define an essentially flat reinforcement; a cement interstitially disposed between the tube and reinforcement, strands of the braid, and fibers comprising the yarn, the cement and yarn together defining a chemically treated yarn; and a cover disposed over the reinforcement, the tube, yarn, cement and cover heated to define the cured flexible hose; whereby application of heat cures the rubber tube and shrinks and further compact the chemically treated yarn to cover near 100 percent of and mechanically interlock with the cured rubber tube.
Claim 2
Dependent Claim
119 words
A flexible hose comprising: an initially heat curable rubber tube; one braided ply of essentially zero twist heat shrinkable, initially greige polyester yarn strands comprised of fibers disposed over and substantially covering said tube to define an essentially flat reinforcement; a cement interstitially disposed between the tube and reinforcement, strands of the braid, and fibers comprising the yarn, the cement and yarn together defining a chemically treated yarn; and a cover disposed over the reinforcement, the tube, yarn, cement and cover heated to define the cured flexible hose; whereby application of heat cures the rubber tube and shrinks and further compact the chemically treated yarn to cover near 100 percent of and mechanically interlock with the cured rubber tube.
References Cited (Backward Citations)
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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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |