US3293934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission
Assignee: Motors Liquidation Co
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Filing: 1962-09-25
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Granted: 1966-12-27
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Expires: 1982-09-25
Abstract
No abstract record available.
Inventors
- 👤 Robert H Schaefer
- 👤 Mark E Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:38
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/02; F16H59/04; F16H59/045; F16H47/00; F16H47/06; F16H47/08; B; B60; B60K; B60K2704/00; B60K2704/02; Y; Y02; Y02T; Y02T90/00; Y02T90/10; Y02T90/14; Y10; Y10S; Y10S477/00; Y10S477/908; Y10S74/00; Y10S74/01; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/86702; Y10T137/86879
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
198 words
IN A TRANSMISSION; AN INPUT SHAFT; A CONVETER SHAFT; AN INTERMEDIATE SHAFT; AN OUTPUT SHAFT; A TORQUE CONVERTER AND A FLUID OPERATED LOCKUP CLUTCH CONNECTING SAID INPUT SHAFT TO SAID CONVERTER SHAFT; A FIRST GEAR UNIT CONNECTING SAID CONVERTER SHAFT TO SAID INTERMEDIATE SHAFT HAVING A LOW RATIO AND A HIGH RATIO FLUID OPERATED DRIVE ESTABLISHING MEANS SELECTIVELY OPERABLE TO PROVIDE LOW AND HIGH DRIVE RATIOS; A SECOND MULTIRATIO GEAR UNIT CONNECTING SAID INTERMEDIATE SHAFT TO SAID OUTPUT SHAFT HAVING A PLURALITY OF FLUID OPERATED DRIVE ESTABLISHING MEANS SELECTIVELY OPERABLE TO PROVIDE A PLURALITY OF RATIOS; A SOURCE OF FLUID UNDER PRESSURE; GOVERNOR MEANS PROVIDING A GOVERNOR PRESSURE PROPORTIONAL TO INTERMEDIATE SHAFT SPEED; TORQUE DEMAND MEANS PROVIDING A TORQUE DEMAND PRESSURE PROPORTIONAL TO TORQUE DEMAND; A LOCKUP SHIFT VALVE HAVING A VALVE ELEMENT GOVERNOR PRESSURE RESPONSIVE MEANS OPERATIVELY CONNECTED TO SAID GOVERNOR MEANS TO RECEIVE GOVERNOR PRESSURE TO MOVE SAID VALVE FOR UPSHIFT, A SHIFT PRESSURE CONTROLLED SPRING ABUTMENT, A BIASING SPRING BETWEEN SAID VALVE ELEMENT AND SAID SPRING ABUTMENT URGING SAID VALVE ELEMENT TO DOWNSHIFT AND A CLOSED CHAMBER BETWEEN SAID VALVE ELEMENT AND SPRING ABUTMENT CONNECTED TO SAID TORQUE DEMAND MEANS TO RECEIVE SAID TORQUE DE-
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |