US3138964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequentially operable clutch assembly
Assignee: Ford Motor Co
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Filing: 1962-12-31
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Granted: 1964-06-30
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Stockton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:54
CPC Classifications
F; F16; F16D; F16D67/00; F16D21/00; F16D21/02; F16D21/06; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16D25/0635; F16D25/0638; F16D25/10; F16H; F16H2200/00; F16H2200/003; F16H2200/0039; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19149; Y10T74/19219; Y10T74/19228
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A POWER TRANSMISSION MECHANISM COMPRISING A MULTIPLE SPEED RATIO GEAR UNIT HAVING TWO POWER INPUT GEAR ELEMENTS, A DRIVING MEMBER, A DRIVEN MEMBER, SAID GEAR ELEMENTS COMPRISING SEPARATE TORQUE DELIVERY PATHS BETWEEN SAID DRIVING MEMBER AND SAID DRIVEN MEMBER, A MULTIPLE DISC CLUTCH ASSEMBLY COMPRISING A FIRST CLUTCH MEMBER, A PAIR OF CLUTCH CYLINDERS DISPOSED IN SAID FIRST CLUTCH MEMBER, A SECOND CLUTCH MEMBER, A PISTON DISPOSED IN EACH CYLINDER, A THIRD CLUTCH MEMBER, A FIRST CLUTCH DISC ASSEMBLY HAVING FRICTION PORTIONS CARRIED BY SAID FIRST AND SECOND CLUTCH MEMBERS, A SECOND CLUTCH DISC ASSEMBLY HAVING FRICTION PORTIONS CARRIED BY SAID SECOND AND THIRD CLUTCH MEMBERS, MEANS FOR DISTRIBUTING SELECTIVELY FLUID PRESSURE TO EACH CYLINDER, THE FORCE APPLIED TO THE PISTON IN SAID FIRST CYLINDER CAUSING ENGAGEMENT OF SAID FIRST CLUTCH DISC ASSEMBLY AND THE FORCE APPLIED TO THE PISTON IN SAID SECOND CYLINDER CAUSING ENGAGEMENT OF
Claim 2
Dependent Claim
147 words
A POWER TRANSMISSION MECHANISM COMPRISING A MULTIPLE SPEED RATIO GEAR UNIT HAVING TWO POWER INPUT GEAR ELEMENTS, A DRIVING MEMBER, A DRIVEN MEMBER, SAID GEAR ELEMENTS COMPRISING SEPARATE TORQUE DELIVERY PATHS BETWEEN SAID DRIVING MEMBER AND SAID DRIVEN MEMBER, A MULTIPLE DISC CLUTCH ASSEMBLY COMPRISING A FIRST CLUTCH MEMBER, A PAIR OF CLUTCH CYLINDERS DISPOSED IN SAID FIRST CLUTCH MEMBER, A SECOND CLUTCH MEMBER, A PISTON DISPOSED IN EACH CYLINDER, A THIRD CLUTCH MEMBER, A FIRST CLUTCH DISC ASSEMBLY HAVING FRICTION PORTIONS CARRIED BY SAID FIRST AND SECOND CLUTCH MEMBERS, A SECOND CLUTCH DISC ASSEMBLY HAVING FRICTION PORTIONS CARRIED BY SAID SECOND AND THIRD CLUTCH MEMBERS, MEANS FOR DISTRIBUTING SELECTIVELY FLUID PRESSURE TO EACH CYLINDER, THE FORCE APPLIED TO THE PISTON IN SAID FIRST CYLINDER CAUSING ENGAGEMENT OF SAID FIRST CLUTCH DISC ASSEMBLY AND THE FORCE APPLIED TO THE PISTON IN SAID SECOND CYLINDER CAUSING ENGAGEMENT OF
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |