US4307754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible pipe
Assignee: MIYAKO GOMU KOGYO KK
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Filing: 1979-05-11
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Granted: 1981-12-29
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Expires: 1999-05-11
Abstract
Abstract A flexible pipe includes an elastic pipe body in corrugated form and including alternate large and small radius portions. A ring is mounted within one of the large diameter portions of the interior of the pipe body. An elongated flexible and deformable shaping member is secured to the ring and extends throughout the interior length of the tube body.
Inventors
- 👤 Masaaki Muratsubaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:59
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/04; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/118; Y; Y10; Y10S; Y10S138/00; Y10S138/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
116 words
A flexible pipe comprising: an elongated pipe body formed of an elastic material and capable of being bent into a desired configuration; a ring mounted within the interior of said pipe body at a position intermediate the ends of said pipe body; elongated shaping means, separate from said ring and secured to said ring and extending along the interior of said pipe body throughout substantially the entire length thereof, for maintaining a desired bent configuration of said pipe body; and wherein said shaping means comprises a wire formed into an elongated U-shaped member twisted throughout the length thereof except for free end portions thereof, said free end portions being formed as hooks extending through said ring.
Claim 2
Dependent Claim
116 words
A flexible pipe comprising: an elongated pipe body formed of an elastic material and capable of being bent into a desired configuration; a ring mounted within the interior of said pipe body at a position intermediate the ends of said pipe body; elongated shaping means, separate from said ring and secured to said ring and extending along the interior of said pipe body throughout substantially the entire length thereof, for maintaining a desired bent configuration of said pipe body; and wherein said shaping means comprises a wire formed into an elongated U-shaped member twisted throughout the length thereof except for free end portions thereof, said free end portions being formed as hooks extending through said ring.
Claim 3
Dependent Claim
36 words
A flexible pipe as claimed in claim 1, wherein said pipe body is corrugated and includes alternate large radius portions and small radius portions, and said ring is mounted within one of said large radius portions.
Claim 4
Dependent Claim
31 words
A flexible pipe as claimed in claim 2, wherein said shaping means is secured to said ring at positions radially inwardly of the inner radius portions of said small radius portions.
Claim 5
Dependent Claim
100 words
A flexible pipe comprising: an elongated pipe body formed of an elastic material and capable of being bent into a desired configuration; a ring mounted within the interior of said pipe body; and elongated shaping means, secured to said ring and extending along the interior of said pipe body throughout substantially the entire length thereof, for maintaining a desired bent configuration of said pipe body, said shaping means comprising a wire formed into an elongated U-shaped member twisted throughout the length thereof except for free end portions thereof, said free end portions being formed as hooks extending through said ring.
Claim 6
Dependent Claim
100 words
A flexible pipe comprising: an elongated pipe body formed of an elastic material and capable of being bent into a desired configuration; a ring mounted within the interior of said pipe body; and elongated shaping means, secured to said ring and extending along the interior of said pipe body throughout substantially the entire length thereof, for maintaining a desired bent configuration of said pipe body, said shaping means comprising a wire formed into an elongated U-shaped member twisted throughout the length thereof except for free end portions thereof, said free end portions being formed as hooks extending through said ring.
Claim 7
Dependent Claim
18 words
A flexible pipe as claimed in claim 4, wherein said wire is formed of a flexible, deformable material.
Claim 8
Dependent Claim
36 words
A flexible pipe as claimed in claim 4, wherein said pipe body is corrugated and includes alternate large radius portions and small radius portions, and said ring is mounted within one of said large radius portions.
Claim 9
Dependent Claim
30 words
A flexible pipe as claimed in claim 6, wherein said hooks are secured to said ring at positions radially inwardly of the inner radius portions of said small radius portions.
References Cited (Backward Citations)
US220954A
Cited
US314440A
Cited
US2299160A
Cited
US2640502A
Cited
US2759765A
Cited
US2905194A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |