Patent US1851198A successfully refreshed from Google Patents.
US3835890A
Expired / Lapsed
US
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Buoyant liquid-conveying hose
Assignee: Uniroyal Inc
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Filing: 1973-03-29
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Granted: 1974-09-17
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Expires: 1993-03-29
Abstract
Abstract A buoyant liquid-conveying hose which minimizes loss in buoyancy due to physical damage of the buoyancy material and which minimizes any decrease in the volume of the buoyancy material caused by ambient conditions of temperature and external pressure. The hose comprises a hose body and a plurality of rigid buoyant annuluses and a plurality of resilient buoyant spacer annuluses of closed cell expanded plastic material between the rigid annuluses and adherent to the hose body and having lateral surfaces complementary to the surfaces of the rigid annuluses.
Inventors
- 👤 A Miceli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:13
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/12; F16L11/133
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
54 words
A buoyant liquid-conveying hose comprising a hose body, a plurality of rigid buoyant annuluses external to said hose body and a plurality of resilient buoyant spacer annuluses of closedcell expanded plastic material between said rigid annuluses and adherent to said hose body and having lateral surfaces complementary to the surfaces of said rigid annuluses.
Claim 2
Dependent Claim
54 words
A buoyant liquid-conveying hose comprising a hose body, a plurality of rigid buoyant annuluses external to said hose body and a plurality of resilient buoyant spacer annuluses of closedcell expanded plastic material between said rigid annuluses and adherent to said hose body and having lateral surfaces complementary to the surfaces of said rigid annuluses.
Claim 3
Dependent Claim
17 words
A hose in accordance with claim 1 in which said rigid annuluses are each of toroidal shape.
Claim 4
Dependent Claim
19 words
A hose in accordance with claim 1 in which said rigid annuluses are hollow annuluses of rigid plastic material.
Claim 5
Dependent Claim
15 words
A hose in accordance with claim 3 in which said plastic material is polyvinyl chloride.
Claim 6
Dependent Claim
16 words
A hose in accordance with claim 1 in which said spacer annuluses are of sponge rubber.
Claim 7
Dependent Claim
36 words
A hose in accordance with claim 1 in which the cross-sectional width of each of said spacer annuluses taken radially of the hose is approximately one-half of the cross-sectional width of said rigid annuluses adjacent thereto.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |