US3580289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible hose construction
Assignee: Polymer Corp
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Filing: 1967-01-09
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Granted: 1971-05-25
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Expires: 1987-01-09
Abstract
Abstract Corrugated flexible hose structure including one or more of the following features: a compressible filler material in the grooves of the hose sidewall for controlling sidewall flexure; a high tenacity yarn in the grooves; a braided covering bonded only to the crests of the ridges between the grooves; methods for filling the grooves; and methods for applying and bonding the braided covering.
Inventors
- 👤 Ralph E James Jr
- 👤 Robert B Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:50
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/045; B; B29; B29D; B29D23/00; B29D23/001; F16L11/11; B29K; B29K2021/00; B29K2027/00; B29K2027/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A flexible high-pressure hose comprised of: an impervious corrugated tube adapted for the transmission of fluids, said corrugations being characterized by alternating ridges and grooves extending generally circumferentially of said tube, each of said corrugations having sidewall portions defined as the portion of the tube separating adjacent ridges from the low point of the corresponding groove; a braided cover of high-tensile strength yarn fixedly attached to the outermost portion of said ridges, said braided cover being adapted to restrain radial expansion of the outer surface of the hose so as to increase the burst strength thereof; and a resilient material, filling at least a substantial portion of the space defined between the corrugations and the braided cover such that when the hose is subjected to substantial internal pressures, or otherwise stressed, the sidewall portions thereof deform, thus compressing the resilient material which in turn resists further deformation of the sidewall portions of the tube and assists in restoring the sidewall portions thereof to their original configuration.
Claim 2
Dependent Claim
166 words
A flexible high-pressure hose comprised of: an impervious corrugated tube adapted for the transmission of fluids, said corrugations being characterized by alternating ridges and grooves extending generally circumferentially of said tube, each of said corrugations having sidewall portions defined as the portion of the tube separating adjacent ridges from the low point of the corresponding groove; a braided cover of high-tensile strength yarn fixedly attached to the outermost portion of said ridges, said braided cover being adapted to restrain radial expansion of the outer surface of the hose so as to increase the burst strength thereof; and a resilient material, filling at least a substantial portion of the space defined between the corrugations and the braided cover such that when the hose is subjected to substantial internal pressures, or otherwise stressed, the sidewall portions thereof deform, thus compressing the resilient material which in turn resists further deformation of the sidewall portions of the tube and assists in restoring the sidewall portions thereof to their original configuration.
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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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |