Patent US3083043A successfully refreshed from Google Patents.
US3083043A
Expired / Lapsed
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Taper thread system for coupling or joint
Assignee: Thornhill-Craver Co Inc
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Filing: 1956-06-25
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Granted: 1963-03-26
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Expires: 1976-06-25
Abstract
No abstract record available.
Inventors
- 👤 Homer E Thornhill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:45
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A TAPERED THREAD SYSTEM COMPRISING, MALE AND FEMALE MEMBERS HAVING EXTERNAL AND INTERNAL MATING THREADS RESPECTIVELY FORMED ON SUBSTANTIALLY THE SAME TAPER, THE THREAD OF THE MALE MEMBER BEING OF SUCH SIZE AND EXTENT AS TO ENGAGE SUBSTANTIALLY ALL OF THE THREAD OF THE FEMALE MEMBER WHEN THE THREAD SYSTEM IS MADE UP HAND TIGHT, SAID FEMALE MEMBER HAVING AN INTERNAL ANNULAR GROOVE AT THE SMALL DIAMETER END OF THE INTERNAL THREAD OF A WIDTH AND DEPTH TO RECEIVE THE END OF THE MALE MEMBER AS THE MEMBERS ARE ROTATED TO FULL MADE UP POSITION, THE INTERENGAGEMENT OF THE THREADS CONSTITUTING THE ONLY LIMITATION ON THE EXTENT OF MAKE-UP.
Claim 2
Dependent Claim
109 words
A TAPERED THREAD SYSTEM COMPRISING, MALE AND FEMALE MEMBERS HAVING EXTERNAL AND INTERNAL MATING THREADS RESPECTIVELY FORMED ON SUBSTANTIALLY THE SAME TAPER, THE THREAD OF THE MALE MEMBER BEING OF SUCH SIZE AND EXTENT AS TO ENGAGE SUBSTANTIALLY ALL OF THE THREAD OF THE FEMALE MEMBER WHEN THE THREAD SYSTEM IS MADE UP HAND TIGHT, SAID FEMALE MEMBER HAVING AN INTERNAL ANNULAR GROOVE AT THE SMALL DIAMETER END OF THE INTERNAL THREAD OF A WIDTH AND DEPTH TO RECEIVE THE END OF THE MALE MEMBER AS THE MEMBERS ARE ROTATED TO FULL MADE UP POSITION, THE INTERENGAGEMENT OF THE THREADS CONSTITUTING THE ONLY LIMITATION ON THE EXTENT OF MAKE-UP.
References Cited (Backward Citations)
US263943A
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US1226921A
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US1281977A
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US1889868A
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US2711913A
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US2745685A
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US2781206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |