Patent US3079956A successfully refreshed from Google Patents.
US3079956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring joining machine
Assignee: Federal Mogul Bower Bearings Inc
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Filing: 1959-02-16
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Granted: 1963-03-05
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Expires: 1979-02-16
Abstract
No abstract record available.
Inventors
- 👤 Harold A Smith
- 👤 Konrad Siegfried
- 👤 Richard J Bagdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:47
CPC Classifications
B; B21; B21F; B21F15/00; B21F15/02; B21F35/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49609; Y10T29/49826; Y10T29/53; Y10T29/53687
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A MACHINE FOR SECURING TOGETHER THE ENDS OF A STRAIGHT HELICAL SPRING HAVING A LARGER END AND A SMALLER END, SAID MACHINE INCLUDING IN COMBINATION: A LOOPING DIE HAVING A GENERALLY CIRCULAR ARCUATE PLANAR CHANNEL OPEN ON ONE SIDE AND AT EACH END; MEANS FOR LOADING A STRAIGHT SPRING INTO SAID CHANNEL WITH THE ENDS OF THE SPRING EXTENDING BEYOND THE ENDS OF SAID CHANNEL AND SPACED APART FROM EACH OTHER; MEANS FOR SEIZING SAID SPRING ADJACENT EACH END AND STRIPPING IT FROM SAID CHANNEL AND HOLDING SAID SPRING ONLY AT SAID ENDS; MEANS FOR POSITIVELY ROTATING ONE END OF SAID SPRING A PREDETERMINED AMOUNT IN A PREDETERMINED DIRECTION WHILE SAID SPRING ENDS ARE SPACED APART; MEANS FOR THEN MOVING THE SMALLER END OF SAID SPRING INTO THE LARGER END; AND MEANS FOR THEN POSITIVELY ROTATING THE PREVIOUSLY ROTATED SPRING END EXACTLY THE SAME PREDETERMINED AMOUNT IN THE OPPOSITE DIRECTION TO LOCK SAID SPRING ENDS TOGETHER WITHOUT A TWISTING MOMENT.
Claim 2
Dependent Claim
160 words
A MACHINE FOR SECURING TOGETHER THE ENDS OF A STRAIGHT HELICAL SPRING HAVING A LARGER END AND A SMALLER END, SAID MACHINE INCLUDING IN COMBINATION: A LOOPING DIE HAVING A GENERALLY CIRCULAR ARCUATE PLANAR CHANNEL OPEN ON ONE SIDE AND AT EACH END; MEANS FOR LOADING A STRAIGHT SPRING INTO SAID CHANNEL WITH THE ENDS OF THE SPRING EXTENDING BEYOND THE ENDS OF SAID CHANNEL AND SPACED APART FROM EACH OTHER; MEANS FOR SEIZING SAID SPRING ADJACENT EACH END AND STRIPPING IT FROM SAID CHANNEL AND HOLDING SAID SPRING ONLY AT SAID ENDS; MEANS FOR POSITIVELY ROTATING ONE END OF SAID SPRING A PREDETERMINED AMOUNT IN A PREDETERMINED DIRECTION WHILE SAID SPRING ENDS ARE SPACED APART; MEANS FOR THEN MOVING THE SMALLER END OF SAID SPRING INTO THE LARGER END; AND MEANS FOR THEN POSITIVELY ROTATING THE PREVIOUSLY ROTATED SPRING END EXACTLY THE SAME PREDETERMINED AMOUNT IN THE OPPOSITE DIRECTION TO LOCK SAID SPRING ENDS TOGETHER WITHOUT A TWISTING MOMENT.
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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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |