Patent US3107905A successfully refreshed from Google Patents.
US3107905A
Expired / Lapsed
US
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Belleville spring elastic suspension
Assignee: Individual
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Filing: 1960-10-19
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Granted: 1963-10-22
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Expires: 1980-10-19
Abstract
No abstract record available.
Inventors
- 👤 Charles D Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:01
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
146 words
AN ELASTIC SUSPENSION COMPRISING: (A) AT LEAST ONE BELLIVILLE SPRING, SAID SPRING HAVING THE GENERAL SHAPE OF A HOLLOW TRUNCATED CONE AND HAVING INNER AND OUTER ANNULAR PERIPHERIES; (B) A FOUNDATION MEMBER SUPPORTING SAID SPRING ABOUT THE OUTER PERIPHERY THEREOF, SAID FOUNDATION MEMBER BEING CONSTRUCTED AND ARRANGED TO ALLOW SAID SPRING TO BE FREELY DEFLECTED BEYOND THE FLATTENED POSITION; AND (C) A MASS OF A SUBSTANTIALLY CONSTANT, KNOWN WEIGHT MOUNTED ON SAID SPRING CENTRALLY THEREOF AT THE INNER EDGE THEREOF WHEREBY SAID MASS IS ELASTICALLY SUPPORTED ON SAID FOUNDATION MEMBER THROUGH SAID SPRING; (D) THE RATIO OF THE FREE CONE HEIGHT TO THE WALL THICKNESS OF SAID SPRING BEING GREATER THAN 0 BUT NO GREATER THAN $2; (E) SAID SPRING BEING SO SELECTED THAT SAID SPRING IS DEFLECTED TO A FLATTENED POSITION BY THE KNOWN WEIGHT OF SAID MASS AT THE EQUILIBRIUM POSITION OF THE SUSPENSION.
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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |