US3682202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced hose
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1970-01-22
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Granted: 1972-08-08
•
Expires: 1990-01-22
Abstract
Abstract An improved collapse-resistant, reinforced hose of flexible polymeric material including a semi-rigid generally circumferentially disposed supporting structure which includes preferably a single layer of textile fabric reinforcement, the major portion of which is composed of treated polyester or nylon fibers. The polyester or nylon fibers are treated with an organic polyisocyanate and preferably a solution of at least 2 percent organic polyisocyanate in a non-reactive solvent. The hose has substantially improved bursting strength and resistance to vacuum collapse without the need of additional support, such as a metal wire insert. The invention is particularly useful for flexible radiator hoses used in automotive vehicle cooling systems.
Inventors
- 👤 Wayne H Buhrmann
- 👤 Sidney R Fix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:23
CPC Classifications
D; D04; D04B; D04B1/00; D04B1/14; F; F01; F01P; F01P11/00; F01P11/04; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/085; F16L11/086; F02; F02B; F02B1/00; F02B1/02; F02B1/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
12 words
The hose as claimed in claim 1, wherein said fibers are polyester.
Claim 2
Dependent Claim
20 words
The hose as claimed in claim 1, wherein said hose includes at least one curved portion in the length thereof.
Claim 3
Dependent Claim
21 words
The hose as claimed in claim 1, wherein said reinforcement is a knitted fabric embedded in the wall of said hose.
Claim 4
Dependent Claim
16 words
The hose as claimed in claim 4, wherein the knitted fabric is of a lock-stitch construction.
Claim 5
Dependent Claim
27 words
The hose as claimed in claim 4, wherein said hose is capable of withstanding hydrostatic pressure of at least 150 psi when tested according to ASTM D-380.
Claim 6
Dependent Claim
223 words
An improved vulcanized radiator hose of flexible polymeric material having an inside diameter of from about 7/8 of an inch to about 3 inches and a wall thickness of from about 0.15 of an inch to about 0.25 of an inch, said hose including: an inner tube of flexible polymeric material; a knitted fabric reinforcement surrounding said inner tube, said fabric reinforCement having large spaces between the knitted fabric components having large spaces between the knitted fabric components thereof and said reinforcement consisting essentially of at least a single layer of fibers selected from the group consisting of polyester and nylon, said fibers including a coating comprising at least a 2 percent solution of an organic polyisocyanate; and an outer cover of flexible polymeric material superposed over said tube and knitted fabric reinforcement, said reinforcement being contained within said hose primarily by means of a polymeric bond created by the flow of the flexible polymeric material of said tube and said cover through the spaces between said knitted fabric components during vulcanization to form a semi-rigid circumferentially disposed supporting structure for the hose, said hose thereby capable of an increased bursting strength when tested according to ASTM D-380 and an increased resistance to vacuum collapse when subjected to a continuously increasing vacuum at room temperature without the use of a metal wire insert.
Claim 7
Dependent Claim
12 words
The hose as claimed in claim 7, wherein said fibers are polyester.
Claim 8
Dependent Claim
59 words
The hose as claimed in claim 7, wherein said hose has an inside diameter of from about 7/8 of an inch to about 2 1/4 inches and is capable of withstanding a vacuum pressure of greater than 3 1/2 inches of mercury when at least a 6-inch section thereof is subjected to a continuously increasing vacuum at room temperature.
Claim 9
Dependent Claim
25 words
The hose as claimed in claim 9, wherein said hose has an inside diameter of from about 1 1/2 inches to about 2 1/4 inches.
Claim 10
Dependent Claim
20 words
The hose as claimed in claim 7, wherein said hose includes at least one curved portion in the length thereof.
Claim 11
Dependent Claim
25 words
The hose as claimed in claim 7, wherein the flexible polymeric material is selected from the group consisting of ethylene propylene terpolymer, butyl and neoprene.
Claim 12
Dependent Claim
40 words
The hose as claimed in claim 7, wherein said coating comprises a solution of from about 10 percent to about 30 percent of an organic polyisocyanate in a non-reactive solvent selected from the group consisting of trichloroethylene, trichloroethane, and toluene.
Claim 13
Dependent Claim
17 words
The hose as claimed in claim 7, wherein the knitted polyester fabric is of a lock-stitch construction.
References Cited (Backward Citations)
US348698A
Cited
US2040058A
Cited
US2512433A
Cited
US2788804A
Cited
US2906638A
Cited
US2749943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |