US3237906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snubbing load applying spring
Assignee: American Metal Products Co
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Filing: 1964-01-29
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Granted: 1966-03-01
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Expires: 1984-01-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Russell G Heyl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:54
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/502; B60N2/505; B60N2/506; B60N2/507; B60N2/54; B60N2/548; F; F16; F16C; F16C1/00; F16C1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN A LOAD SUPPORTING STRUCTURE INCLUDING A SUPPORT MEANS AND A MOVABLE MEMBER CONNECTED BY LEVER MEANS, A SPIRAL SPRING SECURED AT ONE END TO SAID SUPPORT MEANS AND SECURED AT THE OTHER END TO SAID LEVER MEANS TO RESILIENTLY RESIST MOVEMENT OF SAID MOVABLE MEMBER RELATIVE TO SAID SUPPORT MEANS, SAID SPRING HAVING A PLURALITY OF ADJACENT CONVOLUTIONS RADIALLY ALIGNED ABOUT THE CENTER THEREOF, SAID SPRINGS BEING DISPOSED SO THAT PORTIONS OF EACH OF SAID CONVOLUTIONS IN SUBSTANTIALLY THE SAME AREA OF SAID SPRING CONTINUOUSLY ABUTTINGLY ENGAGE
Claim 2
Dependent Claim
88 words
IN A LOAD SUPPORTING STRUCTURE INCLUDING A SUPPORT MEANS AND A MOVABLE MEMBER CONNECTED BY LEVER MEANS, A SPIRAL SPRING SECURED AT ONE END TO SAID SUPPORT MEANS AND SECURED AT THE OTHER END TO SAID LEVER MEANS TO RESILIENTLY RESIST MOVEMENT OF SAID MOVABLE MEMBER RELATIVE TO SAID SUPPORT MEANS, SAID SPRING HAVING A PLURALITY OF ADJACENT CONVOLUTIONS RADIALLY ALIGNED ABOUT THE CENTER THEREOF, SAID SPRINGS BEING DISPOSED SO THAT PORTIONS OF EACH OF SAID CONVOLUTIONS IN SUBSTANTIALLY THE SAME AREA OF SAID SPRING CONTINUOUSLY ABUTTINGLY ENGAGE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |