US3420582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal flexure type joint
Assignee: Toroid Corp
•
Filing: 1964-07-22
•
Granted: 1969-01-07
•
Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 Robert E Shelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:53
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/12; F01; F01D; F01D25/00; F01D25/28; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32041; Y10T403/54; Y10T403/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A UNIVERSAL FLEXURE COMPRISING AN OUTER CLYLINDRICAL SHELL AND AN INNER CYLINDRICAL SHELL FORMING A COAXIAL CYLINDRICAL ASSEMBLY, EACH SAID SHELL HAVING FIRST, SECOND, THIRD AND FOURTH PAIRS OF SLOTS, RESPECTIVELY, FORMED IN THE CYLINDRICAL WALLS THEREOF, 90* APART, FIRST, SECOND, THIRD AND FOURTH WEBS FORMED BY AND BETWEEN EACH SAID PAIR OF SLOTS, RESPECTIVELY, EACH SAID WEB IN SAID INNER SHELL BEING CENTED IN ONE DIRECTION FROM THE DIRECTION PARALLEL TO THE AXIS OF SAID CYLINDRICAL ASEMBLY, EACH SAID WEB IN SAID OUTER SHELL BEING CANTED ABOUT THE SAME AMOUNT IN THE OPPOSITE DIRECTION WITH RESPECT TO SAID AXIS OF THE CYLINDRICAL ASSEMBLY SO THAT WHEN SAID INNER AND OUTER SHELLS AND POSITIONED COAXIALLY, THE CENTER LINES OF SAID FIRST, SECOND, THIRD AND FOURTH WEBS OF SAID INNER AND OUTER WEBS ARE RESPECTIVELY ALIGNED AND ARE POSITIONED IN A PLANE NORMAL OF SAID AXIS OF SAID CYLINDRICAL ASSEMBLY, A PAIR OF END SLOTS EXTENDING FROM EACH END OF SAID CYLINDRICAL ASSEMBLY, EACH SAID PAIR OF END SLOTS BEING SYMMETRICALLY PLACED WITH RESPECT TO SAID AXIS OF SAID
Claim 2
Dependent Claim
178 words
A UNIVERSAL FLEXURE COMPRISING AN OUTER CLYLINDRICAL SHELL AND AN INNER CYLINDRICAL SHELL FORMING A COAXIAL CYLINDRICAL ASSEMBLY, EACH SAID SHELL HAVING FIRST, SECOND, THIRD AND FOURTH PAIRS OF SLOTS, RESPECTIVELY, FORMED IN THE CYLINDRICAL WALLS THEREOF, 90* APART, FIRST, SECOND, THIRD AND FOURTH WEBS FORMED BY AND BETWEEN EACH SAID PAIR OF SLOTS, RESPECTIVELY, EACH SAID WEB IN SAID INNER SHELL BEING CENTED IN ONE DIRECTION FROM THE DIRECTION PARALLEL TO THE AXIS OF SAID CYLINDRICAL ASEMBLY, EACH SAID WEB IN SAID OUTER SHELL BEING CANTED ABOUT THE SAME AMOUNT IN THE OPPOSITE DIRECTION WITH RESPECT TO SAID AXIS OF THE CYLINDRICAL ASSEMBLY SO THAT WHEN SAID INNER AND OUTER SHELLS AND POSITIONED COAXIALLY, THE CENTER LINES OF SAID FIRST, SECOND, THIRD AND FOURTH WEBS OF SAID INNER AND OUTER WEBS ARE RESPECTIVELY ALIGNED AND ARE POSITIONED IN A PLANE NORMAL OF SAID AXIS OF SAID CYLINDRICAL ASSEMBLY, A PAIR OF END SLOTS EXTENDING FROM EACH END OF SAID CYLINDRICAL ASSEMBLY, EACH SAID PAIR OF END SLOTS BEING SYMMETRICALLY PLACED WITH RESPECT TO SAID AXIS OF SAID
References Cited (Backward Citations)
US2757056A
Cited
US2819892A
Cited
US2803134A
Cited
US2931092A
Cited
US2960302A
Cited
US2966049A
Cited
US3092424A
Cited
US3073584A
Cited
US3009360A
Cited
US3136157A
Cited
US3138953A
Cited
US3203739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |