US3295647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple disc spot clutch with booster
Assignee: Borg Warner Corp
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Filing: 1964-11-23
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Granted: 1967-01-03
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Eugene S Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:54
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16D25/0635
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A HIGH ENERGY FRICTION DEVICE COMPRISING: ROTATIVE INPUT MEANS AND ROTATIVE OUTPUT MEANS, ONE OF SAID MEANS CARRYING AN ANNULAR HOUSING HAVING AT LEAST ONE SERIES OF THREE OR MORE COAXIAL AND SPACED CYLINDRICAL CHAMBERS, THE OTHER OF SAID MEANS CARRYING A PLURALITY OF FRICTION DISCS HAVING SIDES WITH ONE DISC EACH INTERPOSED BETWEEN ADJACENT CHAMBERS; A PLURALITY OF FRICTION BUTTONS, WITH ONE EACH SLIDEABLY DISPOSED IN ONE OF SAID CHAMBERS EFFECTIVE TO BE URGED AGAINST A SIDE OF SAID DISCS FOR PROMOTING ROTATIVE DRIVE THEREBETWEEN; HYDRAULIC ACTUATING MEANS COMPRISING A STEPPED PISTON AND CYLINDER ASSEMBLY EFFECTIVE TO EXERT A MULTIPLIED FORCE AGAINST ONE OF THE OUTERMOST BUTTONS OF SAID SERIES; AND A COOLING SYSTEM EFFECTIVE TO CIRCULATE A COOLING MEDIUM ABOUT THE SIDES OF SAID DISCS.
Claim 2
Dependent Claim
127 words
A HIGH ENERGY FRICTION DEVICE COMPRISING: ROTATIVE INPUT MEANS AND ROTATIVE OUTPUT MEANS, ONE OF SAID MEANS CARRYING AN ANNULAR HOUSING HAVING AT LEAST ONE SERIES OF THREE OR MORE COAXIAL AND SPACED CYLINDRICAL CHAMBERS, THE OTHER OF SAID MEANS CARRYING A PLURALITY OF FRICTION DISCS HAVING SIDES WITH ONE DISC EACH INTERPOSED BETWEEN ADJACENT CHAMBERS; A PLURALITY OF FRICTION BUTTONS, WITH ONE EACH SLIDEABLY DISPOSED IN ONE OF SAID CHAMBERS EFFECTIVE TO BE URGED AGAINST A SIDE OF SAID DISCS FOR PROMOTING ROTATIVE DRIVE THEREBETWEEN; HYDRAULIC ACTUATING MEANS COMPRISING A STEPPED PISTON AND CYLINDER ASSEMBLY EFFECTIVE TO EXERT A MULTIPLIED FORCE AGAINST ONE OF THE OUTERMOST BUTTONS OF SAID SERIES; AND A COOLING SYSTEM EFFECTIVE TO CIRCULATE A COOLING MEDIUM ABOUT THE SIDES OF SAID DISCS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |