US3232637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe coupling
Assignee: Reynolds Metals Co
•
Filing: 1964-11-25
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Granted: 1966-02-01
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Louis E Pennington
- 👤 Wong Lip Fou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:47
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/12; F16L1/20; F16L1/24; F16L15/00; F16L15/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
330 words
IN COMBINATION, A PAIR OF CONDUIT SECTIONS EACH HAVING AN END, EACH END OF SAID CONDUIT SECTION HAVING AN EXTERNAL THREADED PORTION AND AN EXTERNAL TAPERING PORTION DISPOSED INBOARD OF SAID THREADED PORTION THEREOF AND BEING SPACED THEREFROM BY A CYLINDRICAL PORTION, EACH SAID TAPERING PORTION HAVING A LENGTH AT LEAST TWICE AS LONG AS THE LENGTH OF ITS RESPECTIVE THREADED PORTION, AND A COUPLER HAVING A BORE PASSING THERETHROUGH AND DEFINING AN INTERNAL SURFACE OF SAID COUPLER, SAID INTERNAL SURFACE OF SAID COUPLER HAVING A THREADED PORTION AND A PAIR OF TAPERING PORTIONS RESPECTIVELY DISPOSED OUTBOARD OF SAID THREADED PORTION THEREOF AND SPACED THEREFROM BY CYLINDRICAL PORTIONS, EACH TAPERING PORTION OF SAID CONDUIT SECTIONS BEING LONGER THAN EACH SAID TAPERING PORTION OF SAID COUPLER AND HAVING A MAXIMUM DIAMETER LARGER THAN THE MAXIMUM DIAMETER OF EACH SAID TAPERING PORTION OF SAID COUPLER, EACH SAID CYLINDRICAL PORTION OF SAID COUPLER HAVING A LENGTH GREATER THAN THE LENGTH OF THE CYLINDRICAL PORTION OF A RESPECTIVE CONDUIT SECTION, SAID THREADED PORTION OF SAID COUPLER BEING DIVIDED INTO TWO THREADED SECTIONS BY AN INTERMEDIATE UNTHREADED SECTION WHEREBY EACH THREADED SECTION IS APPROXIMATELY THE SAME LENGTH AS THE LENGTH OF SAID THREADED PORTION OF A RESPECTIVE CONDUIT SECTION, SAID TAPERING PORTIONS AND CYLINDRICAL PORTIONS OF SAID COUPLER EACH HAVING A LENGTH AT LEAST AS LONG AS THE LENGTH OF EACH THREADED SECTION AND EACH THREADED PORTION OF SAID CONDUIT SECTIONS, SAID BORE OPPOSITELY RECEIVING SAID ENDS OF SAID CONDUIT SECTIONS IN A BLIND STAB RELATIONSHIP WITH SAID TAPERING PORTIONS OF SAID CONDUIT SECTIONS RESPECTIVELY DISPOSED IN WEDGED RELATION WITH SAID TAPERING PORTIONS OF SAID COUPLER THROUGHOUT THE ENTIRE LENGTH OF SAID TAPERING PORTIONS OF SAID COUPLER AND WITH SAID THREADED PORTIONS OF SAID CONDUIT SECTIONS RESPECTIVELY DISPOSED IN THREADED RELATION WITH SAID THREADED PORTION OF SAID COUPLER TO INTERCONNECT SAID CONDUIT SECTIONS TOGETHER WHEREBY SAID CYLINDRICAL PORTIONS OF SAID COUPLER ALIGN SAID CONDUIT SECTIONS THEREWITH BEFORE SAID THREADED PORTIONS ARE DISPOSED IN THREADED RELATION.
Claim 2
Dependent Claim
330 words
IN COMBINATION, A PAIR OF CONDUIT SECTIONS EACH HAVING AN END, EACH END OF SAID CONDUIT SECTION HAVING AN EXTERNAL THREADED PORTION AND AN EXTERNAL TAPERING PORTION DISPOSED INBOARD OF SAID THREADED PORTION THEREOF AND BEING SPACED THEREFROM BY A CYLINDRICAL PORTION, EACH SAID TAPERING PORTION HAVING A LENGTH AT LEAST TWICE AS LONG AS THE LENGTH OF ITS RESPECTIVE THREADED PORTION, AND A COUPLER HAVING A BORE PASSING THERETHROUGH AND DEFINING AN INTERNAL SURFACE OF SAID COUPLER, SAID INTERNAL SURFACE OF SAID COUPLER HAVING A THREADED PORTION AND A PAIR OF TAPERING PORTIONS RESPECTIVELY DISPOSED OUTBOARD OF SAID THREADED PORTION THEREOF AND SPACED THEREFROM BY CYLINDRICAL PORTIONS, EACH TAPERING PORTION OF SAID CONDUIT SECTIONS BEING LONGER THAN EACH SAID TAPERING PORTION OF SAID COUPLER AND HAVING A MAXIMUM DIAMETER LARGER THAN THE MAXIMUM DIAMETER OF EACH SAID TAPERING PORTION OF SAID COUPLER, EACH SAID CYLINDRICAL PORTION OF SAID COUPLER HAVING A LENGTH GREATER THAN THE LENGTH OF THE CYLINDRICAL PORTION OF A RESPECTIVE CONDUIT SECTION, SAID THREADED PORTION OF SAID COUPLER BEING DIVIDED INTO TWO THREADED SECTIONS BY AN INTERMEDIATE UNTHREADED SECTION WHEREBY EACH THREADED SECTION IS APPROXIMATELY THE SAME LENGTH AS THE LENGTH OF SAID THREADED PORTION OF A RESPECTIVE CONDUIT SECTION, SAID TAPERING PORTIONS AND CYLINDRICAL PORTIONS OF SAID COUPLER EACH HAVING A LENGTH AT LEAST AS LONG AS THE LENGTH OF EACH THREADED SECTION AND EACH THREADED PORTION OF SAID CONDUIT SECTIONS, SAID BORE OPPOSITELY RECEIVING SAID ENDS OF SAID CONDUIT SECTIONS IN A BLIND STAB RELATIONSHIP WITH SAID TAPERING PORTIONS OF SAID CONDUIT SECTIONS RESPECTIVELY DISPOSED IN WEDGED RELATION WITH SAID TAPERING PORTIONS OF SAID COUPLER THROUGHOUT THE ENTIRE LENGTH OF SAID TAPERING PORTIONS OF SAID COUPLER AND WITH SAID THREADED PORTIONS OF SAID CONDUIT SECTIONS RESPECTIVELY DISPOSED IN THREADED RELATION WITH SAID THREADED PORTION OF SAID COUPLER TO INTERCONNECT SAID CONDUIT SECTIONS TOGETHER WHEREBY SAID CYLINDRICAL PORTIONS OF SAID COUPLER ALIGN SAID CONDUIT SECTIONS THEREWITH BEFORE SAID THREADED PORTIONS ARE DISPOSED IN THREADED RELATION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |