Patent US3207497A successfully refreshed from Google Patents.
US3207497A
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Torsion spring assembly
Assignee: TA ACQUISITION CORP
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Filing: 1963-07-02
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Granted: 1965-09-21
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Expires: 1983-07-02
Abstract
No abstract record available.
Inventors
- 👤 Richard H A Schoonover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:30
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/14; F16F1/16; B; B60; B60G; B60G11/00; B60G11/18; B60G11/184; B60G17/00; B60G17/02; B60G17/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A TORSION SPRING ASSEMBLY FOR A VEHICLE SUSPENSION, A CENTRAL CORE EXTENDING ALONG THE LONGITUDINAL AXIS OF THE TORSION SPRING ASSEMBLY, SAID CORE CONSISTING OF A PLURALITY OF IDENTICAL SUPERIMPOSED FLAT SPRING ELEMENTS, A PLURALITY OF GROUPS OF SUPERIMPOSED FLAT SPRING ELEMENTS SYMMETRICALLY POSITIONED ABOUT SAID CORE, AT LEAST ONE OF SAID FLAT SPRING ELEMENTS IN EACH OF SAID LATTER MENTIONED GROUPS EXTENDING SUBSTANTIALLY RADIALLY WITH RESPECT TO THE AXIS OF THE TORSION SPRING ASSEMBLY, WHEREBY A TORSIONAL TWIST IMPOSED ON SAID SPRING ASSEMBLY WILL CAUSE TORSIONAL TWIST TO BE IMPOSED ON SAID SPRING ELEMENTS IN SAID LATTER MENTIONED GROUPS WITHOUT ANY APPRECIABLE BENDING OF SAID ELEMENTS OF SAID LATTER MENTIONED GROUPS IN A LATERAL DIRECTION, LOCKING MEANS FOR HOLDING THE CENTRAL PORTION OF SAID TORSION SPRING ASSEMBLY AGAINST ROTATION BY TORSIONAL TWISTS IMPOSED ON THE ENDS OF SAID TORSION SPRING ASSEMBLY, SAID LOCKING MEANS
Claim 2
Dependent Claim
146 words
IN A TORSION SPRING ASSEMBLY FOR A VEHICLE SUSPENSION, A CENTRAL CORE EXTENDING ALONG THE LONGITUDINAL AXIS OF THE TORSION SPRING ASSEMBLY, SAID CORE CONSISTING OF A PLURALITY OF IDENTICAL SUPERIMPOSED FLAT SPRING ELEMENTS, A PLURALITY OF GROUPS OF SUPERIMPOSED FLAT SPRING ELEMENTS SYMMETRICALLY POSITIONED ABOUT SAID CORE, AT LEAST ONE OF SAID FLAT SPRING ELEMENTS IN EACH OF SAID LATTER MENTIONED GROUPS EXTENDING SUBSTANTIALLY RADIALLY WITH RESPECT TO THE AXIS OF THE TORSION SPRING ASSEMBLY, WHEREBY A TORSIONAL TWIST IMPOSED ON SAID SPRING ASSEMBLY WILL CAUSE TORSIONAL TWIST TO BE IMPOSED ON SAID SPRING ELEMENTS IN SAID LATTER MENTIONED GROUPS WITHOUT ANY APPRECIABLE BENDING OF SAID ELEMENTS OF SAID LATTER MENTIONED GROUPS IN A LATERAL DIRECTION, LOCKING MEANS FOR HOLDING THE CENTRAL PORTION OF SAID TORSION SPRING ASSEMBLY AGAINST ROTATION BY TORSIONAL TWISTS IMPOSED ON THE ENDS OF SAID TORSION SPRING ASSEMBLY, SAID LOCKING MEANS
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |