US3860040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose construction
Assignee: Parker Hannifin Corp
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Filing: 1973-03-07
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Granted: 1975-01-14
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Expires: 1993-03-07
Abstract
Abstract A flexible hose construction comprising a core tube having axial striations about its periphery, an adhesive within said striae, and an outer layer of flexible material bonded by said adhesive to the core tube. The invention also covers the method of making the hose comprising the steps of forming the core tube with axial striations, dipping the tube into a bath of adhesive, and applying a layer of flexible material over the core tube to be bonded thereto by the adhesive.
Inventors
- 👤 Dennis W Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:29
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; F; F16; F16L; F16L11/00; F16L11/04; B29L; B29L2023/00; B29L2023/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A hose construction comprising a core tube of flexible material and having generally axially extending striations about its outer periphery, said striations containing discrete adhesive in contact with the surface thereof, and a layer of flexible material surrounding the core tube, said layer including first portions extending into said striations and other portions exterior of said striations, said layer being bonded to said core tube by said adhesive, said striations comprise raised ridges with recesses therebetween, said layer comprises a tensioned reinforcement of flexible yarn that slightly flattens said ridges of said striations whereby said first portions substantially fill said recesses and substantially uniformly distribute the adhesive therein, and the striations are initially of a depth less than the thickness of said layer.
Claim 2
Dependent Claim
123 words
A hose construction comprising a core tube of flexible material and having generally axially extending striations about its outer periphery, said striations containing discrete adhesive in contact with the surface thereof, and a layer of flexible material surrounding the core tube, said layer including first portions extending into said striations and other portions exterior of said striations, said layer being bonded to said core tube by said adhesive, said striations comprise raised ridges with recesses therebetween, said layer comprises a tensioned reinforcement of flexible yarn that slightly flattens said ridges of said striations whereby said first portions substantially fill said recesses and substantially uniformly distribute the adhesive therein, and the striations are initially of a depth less than the thickness of said layer.
Claim 3
Dependent Claim
94 words
A hose construction comprising a core tube of flexible material and having generally axially extending striations about its outer periphery, said striations containing discrete adhesive in contact with the surfaces thereof, and a layer of flexible material surrounding the core tube, said layer including first portions extending into said striations and other portions exterior of said striations, said layer being bonded to said core tube by said adhesive, said layer comprising an extruded sheath of flexible material having internal striations generally complementary to the striations of said core tube and providing said first portions.
Claim 4
Dependent Claim
94 words
A hose construction comprising a core tube of flexible material and having generally axially extending striations about its outer periphery, said striations containing discrete adhesive in contact with the surfaces thereof, and a layer of flexible material surrounding the core tube, said layer including first portions extending into said striations and other portions exterior of said striations, said layer being bonded to said core tube by said adhesive, said layer comprising an extruded sheath of flexible material having internal striations generally complementary to the striations of said core tube and providing said first portions.
Claim 5
Dependent Claim
27 words
The hose construction of claim 1 in which the striations are initially of about 0.005 inch depth and of from about 0.015 inch to 0.025 inch width.
Claim 6
Dependent Claim
44 words
The hose construction of claim 1 in which said striations are initially occupied solely by said adhesive and there is another layer of flexible material over said reinforcement and having striations on its internal surface substantially complementary to the striations on said core tube.
Claim 7
Dependent Claim
135 words
A hose construction comprising a core tube of flexible material and having generally axially extending striations about its outer peripheRy, said striations initially having side edges forming raised ridges with recesses therebetween, a layer of reinforcement yarn about said core tube and in tensioned engagement with said ridges so as to flatten the same whereby said yarn will enter said recesses, said yarn comprising strands with interstices therebetween, and a discrete adhesive in said striations in contact with said core tube and said reinforcement and bonding the same to each other, some of the adhesive being displaced from the striations into said interstices, and said striations having an initial depth of about 0.005 inch whereby said yarn will be less than 0.005 inch from all surfaces of said striations after said flattening of said ridges.
Claim 8
Dependent Claim
135 words
A hose construction comprising a core tube of flexible material and having generally axially extending striations about its outer peripheRy, said striations initially having side edges forming raised ridges with recesses therebetween, a layer of reinforcement yarn about said core tube and in tensioned engagement with said ridges so as to flatten the same whereby said yarn will enter said recesses, said yarn comprising strands with interstices therebetween, and a discrete adhesive in said striations in contact with said core tube and said reinforcement and bonding the same to each other, some of the adhesive being displaced from the striations into said interstices, and said striations having an initial depth of about 0.005 inch whereby said yarn will be less than 0.005 inch from all surfaces of said striations after said flattening of said ridges.
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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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |