Patent US3307589A successfully refreshed from Google Patents.
US3307589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment of braid-covered convoluted tubing to solid end sleeves
Assignee: Senior Operations Inc
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Filing: 1964-04-20
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Granted: 1967-03-07
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Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Sheffield Kenneth John William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:14
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/26; F16L13/00; F16L13/02; F16L13/0254; F16L13/0272; F16L33/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A FLEXIBLE METAL CONDUIT, THE COMBINATION COMPRISING A FLEXIBLE CONVOLUTED METAL TUBE, A TUBULAR METAL BRAID RECEIVED AROUND SAID TUBE, A TUBULAR GENERALLY CYLINDRICAL END SECTION CONNECTED TO ONE END OF SAID TUBE, AN EXTERNALLY TAPERED ANNULAR MEMBER RIGID WITH SAID END SECTION AND PROJECTING OUTWARDLY BEYOND THE OUTSIDE THEREOF, AN INTERNALLY TAPERED FERRULE RECEIVED AROUND SAID EXTERNALLY TAPERED ANNULAR MEMBER, SAID BRAID EXTENDING BETWEEN SAID MEMBER AND SAID TAPERED FERRULE AND BEING CLAMPED THEREBETWEEN BY THE WEDGING ACTION THEREBETWEEN, A RING ADJACENT THE END OF SAID FERRULE REMOTE FROM SAID CONVOLUTED TUBE, THE END OF SAID BRAID EXTENDING OUTWARDLY BETWEEN THE END OF SAID FERRULE AND SAID RING, AND A WELD UNITING THE END OF SAID BRAID TO SAID FERRULE AND SAID RING TO TRANSMIT THE TENSION IN SAID BRAID TO SAID FERRULE SO THAT SAID TENSION WILL INCREASE THE WEDGE CLAMPING ACTION BETWEEN SAID FERRULE AND SAID TAPERED MEMBER.
Claim 2
Dependent Claim
152 words
IN A FLEXIBLE METAL CONDUIT, THE COMBINATION COMPRISING A FLEXIBLE CONVOLUTED METAL TUBE, A TUBULAR METAL BRAID RECEIVED AROUND SAID TUBE, A TUBULAR GENERALLY CYLINDRICAL END SECTION CONNECTED TO ONE END OF SAID TUBE, AN EXTERNALLY TAPERED ANNULAR MEMBER RIGID WITH SAID END SECTION AND PROJECTING OUTWARDLY BEYOND THE OUTSIDE THEREOF, AN INTERNALLY TAPERED FERRULE RECEIVED AROUND SAID EXTERNALLY TAPERED ANNULAR MEMBER, SAID BRAID EXTENDING BETWEEN SAID MEMBER AND SAID TAPERED FERRULE AND BEING CLAMPED THEREBETWEEN BY THE WEDGING ACTION THEREBETWEEN, A RING ADJACENT THE END OF SAID FERRULE REMOTE FROM SAID CONVOLUTED TUBE, THE END OF SAID BRAID EXTENDING OUTWARDLY BETWEEN THE END OF SAID FERRULE AND SAID RING, AND A WELD UNITING THE END OF SAID BRAID TO SAID FERRULE AND SAID RING TO TRANSMIT THE TENSION IN SAID BRAID TO SAID FERRULE SO THAT SAID TENSION WILL INCREASE THE WEDGE CLAMPING ACTION BETWEEN SAID FERRULE AND SAID TAPERED MEMBER.
References Cited (Backward Citations)
US2351416A
Cited
US3004779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |