US3231049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy absorbing device
Assignee: ARA Inc
•
Filing: 1963-07-16
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Granted: 1966-01-25
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 David L Platus
- 👤 Frank A Marovich
- 👤 Patrick J Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:17
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/12; F16F7/125
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
A LIGHTWEIGHT, HIGH-ENERGY ABSORBING ADAPTED TO ABSORB UNIDIRECTIONAL MECHANICAL ENERGY BY CYCLIC DEFORMATION, COMPRISING: A PAIR OF RELATIVELY MOVABLE MEMBERS HAVING SPACED APART OPPOSED SURFACES DEFINING A SUBSTANTIAL CIRCULAR ANNULAR SPACE THEREBETWEEN; MEANS GUIDING SAID MEMBERS FOR RELATIVE MOVEMENT ONLY IN THE DIRECTION OF THE AXIS OF SAID ANNULAR SPACE AND MAINTAINING THE WIDTH OF SAID SPACE SUBSTANTIALLY CONSTANT; A METAL TOROIDAL BODY POSITIONED IN SAID ANNULAR SPACE AND EXTENDING THEREAROUND; AND MEANS DRIVINGLY CONNECTING SAID TOROIDAL BODY TO SAID RELATIVE MOVABLE MEMBERS SO THAT RELATIVE MOVEMENT BETWEEN SAID MEMBERS, IN ONE DIRECTION ALONG SAID AXIS CAUSES SAID TOROIDAL BODY TO ROTATE IN ONE DIRECTION ABOUT A SECOND AXIS EXTENDING CIRCUMFERENTIALLY OF AND WITHIN SAID ANNULAR SPACE WHEREBY MATERIAL OF SAID BODY IS CYCLICALLY DEFORMED IN OPPOSITE DIRECTIONS.
References Cited (Backward Citations)
US3031034A
Cited
US3087584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |