US4522235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose structure
Assignee: Goodyear Tire and Rubber Co
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Filing: 1983-05-04
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Granted: 1985-06-11
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Expires: 2003-05-04
Abstract
Abstract A hose structure resistant to pressure and vacuum as well as kinking or collapsing which exhibits good recovery from crushing includes in its wall structure elastomer embedded reinforcing cords extending in opposite hand helical patterns about the hose axis and a filler layer of elastomeric material having a thickness from about one fifth to about one fifteenth of the mean radius of the filler layer from the hose axis. The filler layer elastomeric material is of high tensile modulus and hardness and preferably includes short length fibers dispersed throughout oriented predominantly generally in the circumferential direction of the hose.
Inventors
- 👤 Karl K. Kluss
- 👤 Terry F. Allen
- 👤 John M. Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/081; F16L11/083
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
231 words
A suction and discharge hose having a central longitudinal axis and comprising: (i) an inner tube of elastomer material; (ii) a cover layer of elastomeric material spaced radially outwardly of said inner tube and forming an outer surface for the hose; (iii) at least one reinforcing layer of elastomer having embedded therein reinforcing cords extending in opposite hand helical patterns about the hose axis; (iv) at least one filler layer disposed intermediate said inner tube and said cover layer and being separate and distinct from said inner tube and from said cover layer and from said at least one reinforcing layer, said filler layer being of elastomeric material having a tensile modulus at 50 percent elongation of about 400 to about 800 pounds per square inch and a hardness from about 70 to about 85 Shore A, said filler layer elastomeric material having a total thickness from about one fifteenth to about one fifth of the mean radius of the filler layer elastomeric material from the hose axis; (v) from about 10 to about 18 percent by weight discontinuous elongated fibers embedded in randomly distributed manner in substantially parallel relation in said filler layer, said fibers being oriented so as to extend generally in a helical pattern about the hose axis at an angle of at least 45° relative to the hose axis so as to reinforce the hose against collapse.
Claim 2
Dependent Claim
231 words
A suction and discharge hose having a central longitudinal axis and comprising: (i) an inner tube of elastomer material; (ii) a cover layer of elastomeric material spaced radially outwardly of said inner tube and forming an outer surface for the hose; (iii) at least one reinforcing layer of elastomer having embedded therein reinforcing cords extending in opposite hand helical patterns about the hose axis; (iv) at least one filler layer disposed intermediate said inner tube and said cover layer and being separate and distinct from said inner tube and from said cover layer and from said at least one reinforcing layer, said filler layer being of elastomeric material having a tensile modulus at 50 percent elongation of about 400 to about 800 pounds per square inch and a hardness from about 70 to about 85 Shore A, said filler layer elastomeric material having a total thickness from about one fifteenth to about one fifth of the mean radius of the filler layer elastomeric material from the hose axis; (v) from about 10 to about 18 percent by weight discontinuous elongated fibers embedded in randomly distributed manner in substantially parallel relation in said filler layer, said fibers being oriented so as to extend generally in a helical pattern about the hose axis at an angle of at least 45° relative to the hose axis so as to reinforce the hose against collapse.
Claim 3
Dependent Claim
81 words
A hose, according to claim 1, having at least two radially spaced reinforcing layers lying outwardly of said tube, each of said layers including at least one ply of elastomer embedded reinforcing cords with the cords of each ply extending in a helical pattern about the hose axis at an angle from about 50 degrees to about 60 degrees relative to the hose axis, the cords of one ply extending in opposite hand orientation relative to the cords of another ply.
Claim 4
Dependent Claim
27 words
A hose according to claim 2 in which filler layer elastomeric material lies both radially inwardly and radially outwardly of at least some of the reinforcing cords.
Claim 5
Dependent Claim
20 words
A hose according to claim 2 in which the filler layer elastomer predominently lies between the radially spaced reinforcing layers.
Claim 6
Dependent Claim
34 words
A hose according to claim 1 or claim 2 in which the filler layer elastomeric material has a tensile modulus at 100 percent elongation from about 700 to about 1000 pounds per square inch.
Claim 7
Dependent Claim
42 words
A hose according to claim 1 or claim 2 in which the filler layer elastomeric material has a tensile strength from about 700 to about 1500 pounds per square inch, and an elongation at rupture from about 100 to about 300 percent.
Claim 8
Dependent Claim
21 words
A hose according to claim 1 in which the filler layer elastomeric material includes about 13 percent by weight of fibers.
Claim 9
Dependent Claim
29 words
A hose according to claim 1 in which the fibers are of short length cellulosic material treated to promote adhesion to the elastomeric material into which they are incorporated.
Claim 10
Dependent Claim
19 words
A hose according to claim 1 in which each reinforcing layer includes two plies of elastomeric embedded reinforcing cords.
Claim 11
Dependent Claim
22 words
A hose according to claim 1 in which the fibers extend at an angle of about 75° relative to the hose axis.
Claim 12
Dependent Claim
28 words
A hose according to claim 1 in which the filler layer is from about 30 to about 60 percent of the thickness of the wall of said hose.
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) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |