US3396893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction welder
Assignee: United States Atomic Energy Commission
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Filing: 1966-11-01
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Granted: 1968-08-13
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Expires: 1986-11-01
Abstract
No abstract record available.
Inventors
- 👤 Hobart A Cress
- 👤 James T Walls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:06
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A FRICTION WELDER COMPRISING (A) A ROTATABLE COLLET FOR HOLDING ONE OF TWO PARTS TO BE WELDED, THE OTHER PART BEING ADAPTED TO BE HELD IN A STATIONARY COLLET, (B) A ROTATABLE SHAFT HAVING ONE END FIXED TO THE ROTATABLE COLLET, (C) A BRAKE MEMBER SURROUNDING AND SPLINED TO THE SHAFT AND HAVING AN EXTERNAL DISK PORTION, THE SHAFT HAVING A SHOULDER IN THE NEIGHBORHOOD OF THE SAID ONE END OF SHAFT ENGAGED BY THE END OF THE BRAKE MEMBER FACING THE SAID ONE END OF THE SHAFT, (D) A DOG- CLUTCH MEMBER SURROUNDING AND SLIDABLY KEYED TO THE SHAFT AND HAVING ONE END ENGAGING THE END OF THE BRAKE MEMBER REMOTE FROM THE SAID ONE END THEREOF, (E) A SPRING ACTING BETWEEN THE SHAFT AND THE END OF THE DOG-CLUTCH MEMBER REMOTE FROM THE SAID ONE END THEREOF TO URGE THE DOG-CLUTCH MEMBER AGAINST THE BRAKE MEMBER AND THE BRAKE MEMBER AGAINST THE SHOULDER ON THE SHAFT, (F) A SLEEVE SURROUNDING THE SHAFT, THE SPRING, AND THE DOG-CLUTCH MEMBER, AND HAVING AT ONE END AND INTERNAL DOG-CLUTCH PORTION DRIVINGLY ENGAGING THE DOG-
Claim 2
Dependent Claim
183 words
A FRICTION WELDER COMPRISING (A) A ROTATABLE COLLET FOR HOLDING ONE OF TWO PARTS TO BE WELDED, THE OTHER PART BEING ADAPTED TO BE HELD IN A STATIONARY COLLET, (B) A ROTATABLE SHAFT HAVING ONE END FIXED TO THE ROTATABLE COLLET, (C) A BRAKE MEMBER SURROUNDING AND SPLINED TO THE SHAFT AND HAVING AN EXTERNAL DISK PORTION, THE SHAFT HAVING A SHOULDER IN THE NEIGHBORHOOD OF THE SAID ONE END OF SHAFT ENGAGED BY THE END OF THE BRAKE MEMBER FACING THE SAID ONE END OF THE SHAFT, (D) A DOG- CLUTCH MEMBER SURROUNDING AND SLIDABLY KEYED TO THE SHAFT AND HAVING ONE END ENGAGING THE END OF THE BRAKE MEMBER REMOTE FROM THE SAID ONE END THEREOF, (E) A SPRING ACTING BETWEEN THE SHAFT AND THE END OF THE DOG-CLUTCH MEMBER REMOTE FROM THE SAID ONE END THEREOF TO URGE THE DOG-CLUTCH MEMBER AGAINST THE BRAKE MEMBER AND THE BRAKE MEMBER AGAINST THE SHOULDER ON THE SHAFT, (F) A SLEEVE SURROUNDING THE SHAFT, THE SPRING, AND THE DOG-CLUTCH MEMBER, AND HAVING AT ONE END AND INTERNAL DOG-CLUTCH PORTION DRIVINGLY ENGAGING THE DOG-
References Cited (Backward Citations)
US3235161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |