Patent US5080204A successfully refreshed from Google Patents.
Patent US3240305A successfully refreshed from Google Patents.
US3240305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autoamtic clutch
Assignee: Individual
•
Filing: 1961-11-03
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Granted: 1966-03-15
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Expires: 1981-11-03
Abstract
No abstract record available.
Inventors
- 👤 Hirano Bunzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:35
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/02; F16D43/22; B; B62; B62M; B62M25/00; F16D27/00; F16D37/00; F16D37/02; F16D43/04; F16D43/06; F16D43/08; F16D43/12; F16D43/20; F16D43/21; F16D43/213; F16D43/215; F16D43/216; F16D48/00; F16D48/06; F16D48/064; F16D48/08; F16D7/00; F16D7/02; F16D7/024; F16D7/025; F16D7/027; F16D2037/007; F16D2500/00; F16D2500/50; F16D2500/502; F16D2500/50224; F16D2500/50239; F16D2500/50287; F16D2500/70; F16D2500/704; F16D2500/70422; F16D2500/70438; F16D2500/7044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A FRICTION CLUTCH, A DRIVING SHAFT, A DRIVEN MEMBER JOURNALED COAXIALLY ABOUT SAID SHAFT, A FIRST FRICTION ELEMENT MOUNTED ON AND FOR ROTATION AS A UNIT WITH SAID SHAFT, A SECOND FRICTION ELEMENT JOURNALED ON SAID SHAFT, A PLURALITY OF ELASTIC ELEMENTS CONNECTING SAID SECOND FRICTION ELEMENT WITH SAID DRIVEN MEMBER, IN NORMALLY PARALLEL, RADIALLY OFFSET RELATION WITH RESPECT TO SAID SHAFT, TWISTING OF SAID ELEMENTS IN EITHER DIRECTION IN RESPONSE TO TORQUE TRANSMITTED FROM SAID SHAFT TO SAID DRIVEN ELEMENT TENDING TO SEPARATE SAID FRICTION ELEMENTS, AND MEANS OPERABLE TO URGE SAID FIRST ELEMENT AXIALLY OF SAID SHAFT INTO FRICTIONAL CONTACT WITH SAID SECOND ELEMENT AGAINST COMPRESSIVE RESISTANCE OF SAID ELASTIC ELEMENTS.
Claim 2
Dependent Claim
114 words
IN A FRICTION CLUTCH, A DRIVING SHAFT, A DRIVEN MEMBER JOURNALED COAXIALLY ABOUT SAID SHAFT, A FIRST FRICTION ELEMENT MOUNTED ON AND FOR ROTATION AS A UNIT WITH SAID SHAFT, A SECOND FRICTION ELEMENT JOURNALED ON SAID SHAFT, A PLURALITY OF ELASTIC ELEMENTS CONNECTING SAID SECOND FRICTION ELEMENT WITH SAID DRIVEN MEMBER, IN NORMALLY PARALLEL, RADIALLY OFFSET RELATION WITH RESPECT TO SAID SHAFT, TWISTING OF SAID ELEMENTS IN EITHER DIRECTION IN RESPONSE TO TORQUE TRANSMITTED FROM SAID SHAFT TO SAID DRIVEN ELEMENT TENDING TO SEPARATE SAID FRICTION ELEMENTS, AND MEANS OPERABLE TO URGE SAID FIRST ELEMENT AXIALLY OF SAID SHAFT INTO FRICTIONAL CONTACT WITH SAID SECOND ELEMENT AGAINST COMPRESSIVE RESISTANCE OF SAID ELASTIC ELEMENTS.
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |