Patent US3283538A successfully refreshed from Google Patents.
US3283538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock absorbing coupling
Assignee: Kollsman Instrument Corp
•
Filing: 1965-01-25
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Granted: 1966-11-08
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Expires: 1985-01-25
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Trefny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:37
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/60; F16D3/62; G; G06; G06M; G06M1/00; G06M1/14; G06M1/20; G06M1/22; G06M1/24; G06M1/241
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A SHOCK ABSORBING COUPLING COMPRISING A FIRST ROTATABLE MEMBER, A SECOND ROTATABLE MEMBER, A FIRST CIRCULAR SPRING HAVING FIRST AND SECOND OPPOSING ENDS, A SECOND CIRCULAR SPRING HAVING FIRST AND SECOND OPPOSING ENDS; SAID FIRST AND SECOND ENDS OF SAID FIRST AND SECOND SPRINGS HAVING RESPECTIVE CONNECTION MEANS; SAID FIRST AND SECOND MEMBERS HAVING OPPOSING SURFACE PORTIONS EXTENDING THEREFROM; SAID FIRST AND SECOND MEMBERS BEING COAXIAL; SAID FIRST AND SECOND CIRCULAR SPRINGS BEING COAXIAL WITH ONE ANOTHER AND WITH SAID FIRST AND SECOND MEMBERS; SAID PORTION OF SAID FIRST MEMBER SURFACE HAVING FIRST AND SECOND CONNECTION MEANS CONNECTED TO SAID CONNECTION MEANS OF EACH OF SAID FIRST ENDS OF SAID FRIST AND SECOND SPRINGS RESPECTIVELY; SAID SURFACE PORTION OF SAID SECOND MEMBER HAVING SPINDLE CONNECTION MEANS CONNECTED TO EACH OF SAID CONNECTION MEANS OF SAID SECOND ENDS OF SAID FIRST AND SECOND CIRCULAR SPRINGS.
Claim 2
Dependent Claim
144 words
A SHOCK ABSORBING COUPLING COMPRISING A FIRST ROTATABLE MEMBER, A SECOND ROTATABLE MEMBER, A FIRST CIRCULAR SPRING HAVING FIRST AND SECOND OPPOSING ENDS, A SECOND CIRCULAR SPRING HAVING FIRST AND SECOND OPPOSING ENDS; SAID FIRST AND SECOND ENDS OF SAID FIRST AND SECOND SPRINGS HAVING RESPECTIVE CONNECTION MEANS; SAID FIRST AND SECOND MEMBERS HAVING OPPOSING SURFACE PORTIONS EXTENDING THEREFROM; SAID FIRST AND SECOND MEMBERS BEING COAXIAL; SAID FIRST AND SECOND CIRCULAR SPRINGS BEING COAXIAL WITH ONE ANOTHER AND WITH SAID FIRST AND SECOND MEMBERS; SAID PORTION OF SAID FIRST MEMBER SURFACE HAVING FIRST AND SECOND CONNECTION MEANS CONNECTED TO SAID CONNECTION MEANS OF EACH OF SAID FIRST ENDS OF SAID FRIST AND SECOND SPRINGS RESPECTIVELY; SAID SURFACE PORTION OF SAID SECOND MEMBER HAVING SPINDLE CONNECTION MEANS CONNECTED TO EACH OF SAID CONNECTION MEANS OF SAID SECOND ENDS OF SAID FIRST AND SECOND CIRCULAR SPRINGS.
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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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |