US3909047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary rolling conduit
Assignee: Individual
•
Filing: 1974-03-11
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Granted: 1975-09-30
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Expires: 1994-03-11
Abstract
Abstract A tubular conduit section is bent into a C-shape and disposed within confronting annular channels so that the conduit section is curved over at least 45* of arc. One of the channels is rotatable relative to the other and, in rotating, moves one end of the conduit section relative to the other end to convert the C-shape to an annular L-shape without kinking or twisting the conduit to provide a flexible, protective interconnection between ends of the section.
Inventors
- 👤 Gordon O Salmela
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/06; H01P1/062; H01P1/063; H01P1/064; F; F16; F16C; F16C1/00; F16C1/26; F16L; F16L27/00; F16L55/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
152 words
Flexible coupling apparatus comprising, relatively rotatable first and second members means defining a flexible conduit section for intercoupling said relatively rotatable first and second members, means securing spaced portions of said conduit section to respective ones of said first and second members, said first and second members having means defining confronting axially spaced annular channels for accommodating said flexible conduit section, means including the means securing spaced portions of said conduit section and the means defining confronting axially spaced annular channels for mounting said flexible conduit section in said confronting axially spaced annular channels so that in one position of relative rotation of said channels said conduit section forms a generally C-shape and in another position of relative rotation of said channels said conduit section forms a generally L-shape, the azimuth projections of said conduit section being of substantially constant arc length in all positions of relative angular displacement between said members.
Claim 2
Dependent Claim
152 words
Flexible coupling apparatus comprising, relatively rotatable first and second members means defining a flexible conduit section for intercoupling said relatively rotatable first and second members, means securing spaced portions of said conduit section to respective ones of said first and second members, said first and second members having means defining confronting axially spaced annular channels for accommodating said flexible conduit section, means including the means securing spaced portions of said conduit section and the means defining confronting axially spaced annular channels for mounting said flexible conduit section in said confronting axially spaced annular channels so that in one position of relative rotation of said channels said conduit section forms a generally C-shape and in another position of relative rotation of said channels said conduit section forms a generally L-shape, the azimuth projections of said conduit section being of substantially constant arc length in all positions of relative angular displacement between said members.
Claim 3
Dependent Claim
16 words
Flexible coupling apparatus in accordance with claim 1 wherein said constant arc length is substantially 180*.
Claim 4
Dependent Claim
25 words
Flexible coupling apparatus in accordance with claim 1 wherein one of said members is fixed and the other is rotatable through plus or minus 180*.
Claim 5
Dependent Claim
20 words
Flexible coupling apparatus in accordance with claim 1 wherein said members are relatively rotatable through more than one complete rotation.
Claim 6
Dependent Claim
21 words
Flexible coupling apparatus in accordance with claim 1 wherein said channels comprise bases, said conduit ends being secured to said bases.
Claim 7
Dependent Claim
33 words
Flexible coupling apparatus in accordance with claim 1 wherein said channels comprise inner and outer sidewalls confining the conduit to the annular locus defined by said channels throughout substantially the entire conduit length.
Claim 8
Dependent Claim
30 words
Flexible coupling apparatus in accordance with claim 1 and further comprising, fixed structure mounting means supporting one of said members, and rotationally movable structure supporting The other of said members.
Claim 9
Dependent Claim
22 words
Flexible coupling apparatus in accordance with claim 1 and further comprising, means defining interconnecting structure passing through said conduit for transmitting energy.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |