Patent US3287032A successfully refreshed from Google Patents.
US3287032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling for tubular members
Assignee: General Dynamics Corp
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Filing: 1964-08-07
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Granted: 1966-11-22
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Expires: 1984-08-07
Abstract
No abstract record available.
Inventors
- 👤 Jesse L Kraybill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:39
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006; F16B; F16B7/00; F16B7/18; F16B7/182
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A COUPLING FOR TUBULAR MEMBERS COMPRISING: A PAIR OF TUBULAR SECTIONS HAVING SUBSTANTIALLY THE SAME EXTERNAL SURFACE DIMETERS; ONE OF SAID TUBULAR SECTIONS INCLUDING AN INTERNALLY THREADED END PORTION AND A STOP MEMBER ADJACENT SAID INTERNAL THREADS, SAID STOP MEMBER BEING COMPRISED OF AN ANNULAR INTERNALLY EXTENDING FLANGE, SAID STOP MEMBER BEING PROVIDED WITH A SEALING MEMBER ON THE SIDE OF SAID ANNULAR FLANGE ADJACENT SAID INTERNAL THREADS; THE OTHER OF SAID TUBULAR SECTIONS BEING PROVIDED WITH A REDUCED EXTERNAL DIAMETER END PORTION, SAID REDUCED EXTERNAL DIAMETER END PORTION INCLUDING AN ANNULAR GROOVE AND A SHOULDER PORTION, SAID SHOULDER PORTION OF SAID REDUCED EXTERNAL DIAMETER END PORTION BEING INTERMEDIATE SAID GROOVE AND THE TERMINAL END OF SAID END PORTION; A ONE PIECE RESILIENT RING HAVING A SPLIT THEREIN ADAPTED TO BE EXPANDED OVER SAID SHOULDER PORTION AND POSITIONED IN SAID GROOVE OF SAID OTHER TUBULAR SECTION ROTATABLE WITH RESPECT THERETO, SAID SPLIT RING INCLUDING A PORTION PROVIDED WITH EXTERNAL THREADS ADAPTED TO ENGAGE THE INTERNAL THREADS OF SAID ONE TUBULAR SECTION, SAID SPLIT RING ALSO IN-
Claim 2
Dependent Claim
176 words
A COUPLING FOR TUBULAR MEMBERS COMPRISING: A PAIR OF TUBULAR SECTIONS HAVING SUBSTANTIALLY THE SAME EXTERNAL SURFACE DIMETERS; ONE OF SAID TUBULAR SECTIONS INCLUDING AN INTERNALLY THREADED END PORTION AND A STOP MEMBER ADJACENT SAID INTERNAL THREADS, SAID STOP MEMBER BEING COMPRISED OF AN ANNULAR INTERNALLY EXTENDING FLANGE, SAID STOP MEMBER BEING PROVIDED WITH A SEALING MEMBER ON THE SIDE OF SAID ANNULAR FLANGE ADJACENT SAID INTERNAL THREADS; THE OTHER OF SAID TUBULAR SECTIONS BEING PROVIDED WITH A REDUCED EXTERNAL DIAMETER END PORTION, SAID REDUCED EXTERNAL DIAMETER END PORTION INCLUDING AN ANNULAR GROOVE AND A SHOULDER PORTION, SAID SHOULDER PORTION OF SAID REDUCED EXTERNAL DIAMETER END PORTION BEING INTERMEDIATE SAID GROOVE AND THE TERMINAL END OF SAID END PORTION; A ONE PIECE RESILIENT RING HAVING A SPLIT THEREIN ADAPTED TO BE EXPANDED OVER SAID SHOULDER PORTION AND POSITIONED IN SAID GROOVE OF SAID OTHER TUBULAR SECTION ROTATABLE WITH RESPECT THERETO, SAID SPLIT RING INCLUDING A PORTION PROVIDED WITH EXTERNAL THREADS ADAPTED TO ENGAGE THE INTERNAL THREADS OF SAID ONE TUBULAR SECTION, SAID SPLIT RING ALSO IN-
References Cited (Backward Citations)
US590771A
Cited
US39700A
Cited
US1441138A
Cited
US1799941A
Cited
US1814481A
Cited
US1774986A
Cited
US1736145A
Cited
US2226547A
Cited
US2238535A
Cited
US2372223A
Cited
US2468783A
Cited
US2569333A
Cited
US3100121A
Cited
US3195928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |