US3272492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transversely supported torsion bar
Assignee: Northrop Grumman Corp
•
Filing: 1964-03-11
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Granted: 1966-09-13
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Expires: 1984-03-11
Abstract
No abstract record available.
Inventors
- 👤 William A Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:28
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/18; B60G11/184; B60G11/187; F; F16; F16F; F16F1/00; F16F1/02; F16F1/14; F16F3/00; F16F3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A TORSIONAL SPRING ASSEMBLY, COMPRISING A TORSION BAR HAVING A RELATIVELY HIGH SPRING RATE IN TORSION AND BEING RELATIVELY FLEXIBLE TRANSVERSELY OF A LONGITUDINAL AXIS THEREOF, A PAIR OF HUBS SECURED AXIALLY ON OPPOSITE ENDS OF SAID BAR FOR ROTATION RELATIVE TO ONE ANOTHER, AND A PLURALITY OF LEAF SPRINGS CIRCUMFERENTIALLY-SPACED ABOUT SAID BAR AND RIGIDLY SECURED AT OPPOSITE ENDS THEREOF IN SAID HUBS, SAID SPRINGS BEING REATIVELY STIFF TRANSVERSELY OF SAID AXIS, HAVING A RELATIVELY LOW SPRING RATE IN TORSION ABOUT SAID AXIS, AND COMPRISING TRANSVERSELY-CORRUGATED STRIPS HAVING RELATIVELY LOW RESISTANCE TO AXIAL STRETCHING AND THEREFORE BEING COMPLIANT WITH RELATIVE ROTATION OF SAID HUBS TO TORQUE SAID TORSION BAR ABOUT SAID AXIS.
Claim 2
Dependent Claim
113 words
A TORSIONAL SPRING ASSEMBLY, COMPRISING A TORSION BAR HAVING A RELATIVELY HIGH SPRING RATE IN TORSION AND BEING RELATIVELY FLEXIBLE TRANSVERSELY OF A LONGITUDINAL AXIS THEREOF, A PAIR OF HUBS SECURED AXIALLY ON OPPOSITE ENDS OF SAID BAR FOR ROTATION RELATIVE TO ONE ANOTHER, AND A PLURALITY OF LEAF SPRINGS CIRCUMFERENTIALLY-SPACED ABOUT SAID BAR AND RIGIDLY SECURED AT OPPOSITE ENDS THEREOF IN SAID HUBS, SAID SPRINGS BEING REATIVELY STIFF TRANSVERSELY OF SAID AXIS, HAVING A RELATIVELY LOW SPRING RATE IN TORSION ABOUT SAID AXIS, AND COMPRISING TRANSVERSELY-CORRUGATED STRIPS HAVING RELATIVELY LOW RESISTANCE TO AXIAL STRETCHING AND THEREFORE BEING COMPLIANT WITH RELATIVE ROTATION OF SAID HUBS TO TORQUE SAID TORSION BAR ABOUT SAID AXIS.
References Cited (Backward Citations)
US988742A
Cited
US1379964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |