Patent US3814138A successfully refreshed from Google Patents.
US3814138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose construction
Assignee: Weatherhead Co
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Filing: 1972-10-18
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Granted: 1974-06-04
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Expires: 1992-10-18
Abstract
Abstract A reinforced plastic hose is disclosed which includes an inner core, a braid, and a protective cover. The inner core is provided with a plurality of rounded ridges and valleys extending longitudinally along the outer peripheral surface thereof. The braid is disposed on the ridges and is tensioned so that the ridges hold the braid radially spaced from the valleys. When the protective cover is extruded over the inner core and braid, it flows into the space between the valleys and the braid so that the braid is encapsulated about its entire peripheral extent by the protective cover at the locations of the valleys to lock the braid against movement relative to the protective cover. The tension in the braid is insufficient to radially inwardly deflect the rounded surface of the ridges and embed the braid in the ridges, so that the braid and protective cover can move together longitudinally along the inner core when the hose is deflected. Relative rotational movement between the protective cover and the braid is prevented by the spline-like engagement of the protective cover and inner core.
Inventors
- 👤 L Courtot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:23
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/085; B; B60; B60T; B60T17/00; B60T17/04; B60T17/043; F16L11/081; F16L11/082
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
158 words
A reinforced hose comprising an inner core, a braid, and a protective cover, and inner core being of generally tubular configuration and including an inner peripheral surface and an outer peripheral surface, said outer peripheral surface having a plurality of longitudinally extending ridges and valleys, said braid having at least one strand extending circumferentially about said outer peripheral surface, said braid being disposed on the surface of said ridges and being spaced from the bottom of said valleys, said braid being tensioned to bridge the valley between adjacent ridges, said tension of said braid being insufficieNt to radially inwardly deflect said surface of said ridges, said protective cover filling said valleys and totally encapsulating the circumferential extent of said braid at the location of each of said valleys, and said braid and said protective cover moving together longitudinally relative to said inner core when said hose is deflected from a straight longitudinal configuration to a curved longitudinal configuration.
Claim 2
Dependent Claim
158 words
A reinforced hose comprising an inner core, a braid, and a protective cover, and inner core being of generally tubular configuration and including an inner peripheral surface and an outer peripheral surface, said outer peripheral surface having a plurality of longitudinally extending ridges and valleys, said braid having at least one strand extending circumferentially about said outer peripheral surface, said braid being disposed on the surface of said ridges and being spaced from the bottom of said valleys, said braid being tensioned to bridge the valley between adjacent ridges, said tension of said braid being insufficieNt to radially inwardly deflect said surface of said ridges, said protective cover filling said valleys and totally encapsulating the circumferential extent of said braid at the location of each of said valleys, and said braid and said protective cover moving together longitudinally relative to said inner core when said hose is deflected from a straight longitudinal configuration to a curved longitudinal configuration.
Claim 3
Dependent Claim
20 words
A reinforced hose in accordance with claim 1 wherein said inner core and said protective cover are each of plastic.
Claim 4
Dependent Claim
35 words
A reinforced hose in accordance with claim 1 wherein the lateral cross-sectional configuration of each of said ridges is arcuate, whereby the area of surface contact between said braid and said inner core is minimized.
Claim 5
Dependent Claim
40 words
A reinforced hose in accordance with claim 1 wherein said ridges and said valleys are dimensioned so that a straight line extending between adjacent ones of said ridges is spaced from the bottom of the valley interspacing said adjacent ridges.
Claim 6
Dependent Claim
32 words
A reinforced hose in accordance with claim 4 wherein the radial distance between said straight line and said interspacing valley is at least as great as one-half the diameter of said strand.
Claim 7
Dependent Claim
20 words
A reinforced hose in accordance with claim 1 wherein said ridges and said valleys extend solely in said longitudinal direction.
Claim 8
Dependent Claim
176 words
A reinforced hose comprising a plastic inner core, a braid, and a plastic protective cover, said inner core being of generally tubular configuration and including a cylindrical inner peripheral surface and an outer peripheral surface, said outer peripheral surface having a plurality of longitudinally extending ridges and valleys, each of said ridges and each of said valleys being of arcuate lateral cross-sectional configuration, said braid having at least one strand of greater hardness than said inner core and said protective cover extending circumferentially about said outer peripheral surface, said braid being disposed on the surface of said ridges and being spaced from the bottom of said valleys, the tension of said braid being insufficient to radially inwardly deflect said surface of said ridges, said protective cover filling said valleys and totally encapsulating the circumferential extent of said braid at the location of each of said valleys, and said braid and said protective cover moving together longitudinally relative to said inner core when said hose is deflected from a straight longitudinal configuration to a curved longitudinal configuration.
Claim 9
Dependent Claim
176 words
A reinforced hose comprising a plastic inner core, a braid, and a plastic protective cover, said inner core being of generally tubular configuration and including a cylindrical inner peripheral surface and an outer peripheral surface, said outer peripheral surface having a plurality of longitudinally extending ridges and valleys, each of said ridges and each of said valleys being of arcuate lateral cross-sectional configuration, said braid having at least one strand of greater hardness than said inner core and said protective cover extending circumferentially about said outer peripheral surface, said braid being disposed on the surface of said ridges and being spaced from the bottom of said valleys, the tension of said braid being insufficient to radially inwardly deflect said surface of said ridges, said protective cover filling said valleys and totally encapsulating the circumferential extent of said braid at the location of each of said valleys, and said braid and said protective cover moving together longitudinally relative to said inner core when said hose is deflected from a straight longitudinal configuration to a curved longitudinal configuration.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |