US3115332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stud tensioner drawbar connector
Assignee: Babcock and Wilcox Co
•
Filing: 1960-07-27
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Granted: 1963-12-24
•
Expires: 1980-07-27
Abstract
No abstract record available.
Inventors
- 👤 John C Singleton
- 👤 Mart Le Roy S De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:01
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; B23P19/06; B23P19/067; B25; B25B; B25B29/00; B25B29/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN COMBINATION, A STUD TENSIONER HAVING A CENTRALLY LOCATED DRAWBAR EXTENDING THERETHROUGH, MEANS ON SAID STUD TENSIONER SURROUNDING SAID DRAWBAR FOR EXERTING UPWARD FORCE ON SAID DRAWBAR, A LOWER PORTION ON SAID DRAWBAR, AN INTERNAL THREAD FORMED IN SAID LOWER PORTION, A PLURALITY OF CIRCUMFERENTIALLY SPACED AXIALLY EXTENDING RECESSES FORMED IN SAID THREADS, A SLEEVE ADAPTED TO BE THREADED ON A STUD, AN EXTERNAL THREAD FORMED ON SAID SLEEVE CORRESPONDING TO THE INTERNAL DRAWBAR THREAD, AND A PLURALITY OF CIRCUMFERENTIALLY SPACED AXIALLY EXTENDING RECESSES FORMED IN SAID EXTERNAL SLEEVE THREAD ADAPTED TO RECEIVE THE INTERNAL DRAWBAR THREAD, WHEREBY ROTATION OF SAID SLEEVE ON SAID STUD WHEN SAID SLEEVE AND
Claim 2
Dependent Claim
109 words
IN COMBINATION, A STUD TENSIONER HAVING A CENTRALLY LOCATED DRAWBAR EXTENDING THERETHROUGH, MEANS ON SAID STUD TENSIONER SURROUNDING SAID DRAWBAR FOR EXERTING UPWARD FORCE ON SAID DRAWBAR, A LOWER PORTION ON SAID DRAWBAR, AN INTERNAL THREAD FORMED IN SAID LOWER PORTION, A PLURALITY OF CIRCUMFERENTIALLY SPACED AXIALLY EXTENDING RECESSES FORMED IN SAID THREADS, A SLEEVE ADAPTED TO BE THREADED ON A STUD, AN EXTERNAL THREAD FORMED ON SAID SLEEVE CORRESPONDING TO THE INTERNAL DRAWBAR THREAD, AND A PLURALITY OF CIRCUMFERENTIALLY SPACED AXIALLY EXTENDING RECESSES FORMED IN SAID EXTERNAL SLEEVE THREAD ADAPTED TO RECEIVE THE INTERNAL DRAWBAR THREAD, WHEREBY ROTATION OF SAID SLEEVE ON SAID STUD WHEN SAID SLEEVE AND
References Cited (Backward Citations)
US1556890A
Cited
US1654009A
Cited
FR1006760A
Cited
US2665104A
Cited
US2760393A
Cited
US2819529A
Cited
US3015975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |