US3188071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexural pivot
Assignee: Bendix Corp
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Filing: 1962-12-03
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Granted: 1965-06-08
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Cydwel A Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:23
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/42; F16F1/422; F16C; F16C11/00; F16C11/04; F16C11/12; F16F1/02; F16F2236/00; F16F2236/02; Y; Y10; Y10T; Y10T403/00; Y10T403/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A FLEXURAL PIVOT COMPRISED OF: AN ARCUATE ROTATABLE MEMBER, AN ARCUATE SUPPORT MEMBER POSITIONED OPPOSITE SAID ROTATABLE MEMBER, A FIRST PAIR OF FLAT SPRINGS EXTENDING BETWEEN AND CONNECTED TO SAID MEMBERS AND BEING IN FACING RELATION, A SECOND PAIR OF FLAT SPRINGS EXTENDING BETWEEN AND CONNECTED TO SAID MEMBERS AND BEING IN FACING RELATION, SAID PAIRS OF SAID SPRINGS HAVING THE SAME FLEXIBILITY AND FREE LENGTHS AND BEING IN CROSSED RELATION TO PROVIDE AN AXIS OF ROTATION, SAID MEMBERS BEING CONSTRUCTED TO PROVIDE ROTATIONAL TRAVEL GAPS, THE SPRINGS OF EACH SAID PAIR BEING ESSENTIALLY PARALLEL FOR ABOUT HALF OF THEIR LENGTH AND THEN GRADUALLY DIVERGING FROM EACH OTHER SO THAT SAID SPRINGS CONTACT AT THE CENTERS THEREOF CLOSELY ADJACENT SAID AXIS OF ROTATION UPON ROTATION OF SAID ROTATABLY MEMBER RELATIVE TO SAID SUPPORT MEMBER, WHEREBY CENTER SHIFT OF THE PIVOT IS MINIMIZED.
Claim 2
Dependent Claim
142 words
A FLEXURAL PIVOT COMPRISED OF: AN ARCUATE ROTATABLE MEMBER, AN ARCUATE SUPPORT MEMBER POSITIONED OPPOSITE SAID ROTATABLE MEMBER, A FIRST PAIR OF FLAT SPRINGS EXTENDING BETWEEN AND CONNECTED TO SAID MEMBERS AND BEING IN FACING RELATION, A SECOND PAIR OF FLAT SPRINGS EXTENDING BETWEEN AND CONNECTED TO SAID MEMBERS AND BEING IN FACING RELATION, SAID PAIRS OF SAID SPRINGS HAVING THE SAME FLEXIBILITY AND FREE LENGTHS AND BEING IN CROSSED RELATION TO PROVIDE AN AXIS OF ROTATION, SAID MEMBERS BEING CONSTRUCTED TO PROVIDE ROTATIONAL TRAVEL GAPS, THE SPRINGS OF EACH SAID PAIR BEING ESSENTIALLY PARALLEL FOR ABOUT HALF OF THEIR LENGTH AND THEN GRADUALLY DIVERGING FROM EACH OTHER SO THAT SAID SPRINGS CONTACT AT THE CENTERS THEREOF CLOSELY ADJACENT SAID AXIS OF ROTATION UPON ROTATION OF SAID ROTATABLY MEMBER RELATIVE TO SAID SUPPORT MEMBER, WHEREBY CENTER SHIFT OF THE PIVOT IS MINIMIZED.
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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |