Patent US3891007A successfully refreshed from Google Patents.
US3891007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exteriorly corrugated hose of composite materials
Assignee: Dayco Products LLC
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Filing: 1973-08-23
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Granted: 1975-06-24
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Expires: 1993-08-23
Abstract
Abstract An improved single-piece hose construction which provides minimum resistance to fluid flow, and an apparatus and method for making same, is provided and such hose construction is made by extruding elastomeric material into a moving mold to define an improved hose construction comprising an inner portion having a smooth inside surface and an outer portion having an undulating outside surface.
Inventors
- 👤 Donald L Kleykamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:21
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/111; B; B29; B29C; B29C48/00; B29C48/03; B29C48/13; B29C48/25; B29C48/30; B29C48/303; B29C49/00; B29C49/0015; B29C49/0021; B29C33/00; B29C33/76; B29C48/09; B29C48/12; B29L; B29L2023/00; B29L2023/18; B29L2023/186
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
84 words
A single piece hose construction comprising, inner and outer surface portions, said inner portion made of a first elastomeric material and having a smooth inside surface, and said outer portion made of a second elastomeric material substantially harder than the first material, said first and second materials fused and integrally bonded together and free of defined fused surfaces, said outer portion comprising means of a solid cross section deeper than said inner portion, said means defining An undulating outside surface for said hose construction.
Claim 2
Dependent Claim
84 words
A single piece hose construction comprising, inner and outer surface portions, said inner portion made of a first elastomeric material and having a smooth inside surface, and said outer portion made of a second elastomeric material substantially harder than the first material, said first and second materials fused and integrally bonded together and free of defined fused surfaces, said outer portion comprising means of a solid cross section deeper than said inner portion, said means defining An undulating outside surface for said hose construction.
Claim 3
Dependent Claim
45 words
A hose construction as set forth in claim 1 in which said first elastomeric material has a durometer hardness which is less than the durometer hardness of said second elastomeric material to thereby provide a flexible hose construction having improved crush and external abrasion resistance.
Claim 4
Dependent Claim
30 words
A hose construction as set forth in claim 2 in which said first elastomeric material has a hardness which is roughly one half the hardness of said second elastomeric material.
Claim 5
Dependent Claim
49 words
A hose construction as set forth in claim 2 in which said inner portion has a tubular configuration provided with said inside surface and an outside surface and said outer portion is defined by a plurality of spaced rings of solid cross section integrally bonded against said outside surface.
Claim 6
Dependent Claim
52 words
A hose construction as set forth in claim 2 in which said inner portion has a tubular configuration provided with said inside surface and an outside surface, and said outer portion is defined by a continuous member of solid cross section integrally bonded against said outside surface in a substantially helical pattern.
References Cited (Backward Citations)
US2901024A
Cited
US3186438A
Cited
US3240645A
Cited
US3477891A
Cited
US3561493A
Cited
US3428093A
Cited
US3836620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |