US3228500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable fluid shear clutch
Assignee: Individual
•
Filing: 1964-04-29
•
Granted: 1966-01-11
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Kurt W Hollander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:39
CPC Classifications
F; F16; F16D; F16D35/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A VARIABLE TORQUE TRANSFER APPARATUS FOR VARYING THE TORQUE BETWEEN A DRIVEN INPUT ELEMENT AND AN OUTPUT ELEMENT, COMPRISING: A CHAMBER FILLED WITH VISCOUS FLUID; COAXIAL INPUT AND OUTPUT ELEMENTS, EACH EXTENDING INTO SAID CHAMBER AND EACH HAVING A PLURALITY OF VANES MOUNTED THEREON FOR COACTION WITH THE VISCOUS FLUID; AND MEANS COMPRISING A PLURALITY OF AXIALLY MOVABLE MEMBERS; EACH OF SAID MEMBERS HAVING A GUIDING MEANS; FOLLOWING MEANS LOCATED ON EACH VANE OF SAID PLURALITY OF VANES; AND A CYLINDRICAL FRAME MEANS MOUNTED IN SAID CHAMBER RESTRAINING SAID VANES TO ESSENTIALLY RADIAL MOVEMENT UNDER THE INFLUENCE OF THE AXIAL MOVEMENT OF SAID
Claim 2
Dependent Claim
103 words
A VARIABLE TORQUE TRANSFER APPARATUS FOR VARYING THE TORQUE BETWEEN A DRIVEN INPUT ELEMENT AND AN OUTPUT ELEMENT, COMPRISING: A CHAMBER FILLED WITH VISCOUS FLUID; COAXIAL INPUT AND OUTPUT ELEMENTS, EACH EXTENDING INTO SAID CHAMBER AND EACH HAVING A PLURALITY OF VANES MOUNTED THEREON FOR COACTION WITH THE VISCOUS FLUID; AND MEANS COMPRISING A PLURALITY OF AXIALLY MOVABLE MEMBERS; EACH OF SAID MEMBERS HAVING A GUIDING MEANS; FOLLOWING MEANS LOCATED ON EACH VANE OF SAID PLURALITY OF VANES; AND A CYLINDRICAL FRAME MEANS MOUNTED IN SAID CHAMBER RESTRAINING SAID VANES TO ESSENTIALLY RADIAL MOVEMENT UNDER THE INFLUENCE OF THE AXIAL MOVEMENT OF SAID
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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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |