US3251442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-way and fluid operated friction clutches
Assignee: Twin Disc Inc
•
Filing: 1964-05-04
•
Granted: 1966-05-17
•
Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 George R Aschauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:07
CPC Classifications
F; F16; F16D; F16D47/00; F16D47/04; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16D25/0635; F16D25/0638; Y; Y10; Y10T; Y10T74/00; Y10T74/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A COMPACT AND INTEGRAL COMBINATION FRICTION AND ONE-WAY CLUTCH COMPRISING; A FIRST ROTATABLE MEMBER INCLUDING A CYLINDRICAL HOUSING, A PITON SLIDABLE IN SAID HOUSING TO DEFINE A FLUID PRESSURIZABLE CHAMBER; A SECOND ROTATABLE MEMBER ROTATABLY MOUNTED IN AXIAL ALIGNMENT WITH AND ADJACENT TO SAID FIRST MEMBER; FRICTION CLUTCH MEANS BETWEEN SAID MEMBERS FOR PROVIDING ROTATIONAL DRIVE IN ONE DIRECTION FRON THE FIRST TO THE SECOND MEMBER, SAID PISTON ENGAGEABLE WITH SAID FRICTION CLUTCH MEANS TO CAUSE POSITIVE ENGAGEMENT THEREOF WHEN SAID CHAMBER IS PRESSURIZED, ONE-WAY CLUTCH MEANS BETWEEN SAID MEMBERS FOR PERMITTING SAID SECOND MEMBER TO DRIVE INDEPENDENTLY WHEN ITS SPEED RISES ABOVE THAT OF SAID FIRST MEMBER, SAID ONE-WAY CLUTCH MEANS BEING ALIGNED RADIAL-
Claim 2
Dependent Claim
115 words
A COMPACT AND INTEGRAL COMBINATION FRICTION AND ONE-WAY CLUTCH COMPRISING; A FIRST ROTATABLE MEMBER INCLUDING A CYLINDRICAL HOUSING, A PITON SLIDABLE IN SAID HOUSING TO DEFINE A FLUID PRESSURIZABLE CHAMBER; A SECOND ROTATABLE MEMBER ROTATABLY MOUNTED IN AXIAL ALIGNMENT WITH AND ADJACENT TO SAID FIRST MEMBER; FRICTION CLUTCH MEANS BETWEEN SAID MEMBERS FOR PROVIDING ROTATIONAL DRIVE IN ONE DIRECTION FRON THE FIRST TO THE SECOND MEMBER, SAID PISTON ENGAGEABLE WITH SAID FRICTION CLUTCH MEANS TO CAUSE POSITIVE ENGAGEMENT THEREOF WHEN SAID CHAMBER IS PRESSURIZED, ONE-WAY CLUTCH MEANS BETWEEN SAID MEMBERS FOR PERMITTING SAID SECOND MEMBER TO DRIVE INDEPENDENTLY WHEN ITS SPEED RISES ABOVE THAT OF SAID FIRST MEMBER, SAID ONE-WAY CLUTCH MEANS BEING ALIGNED RADIAL-
References Cited (Backward Citations)
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Cited
US1466394A
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US2482460A
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US2792714A
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US2842004A
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US3166165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |