Patent US3118524A successfully refreshed from Google Patents.
US3118524A
Expired / Lapsed
US
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Transmission
Assignee: Doosan Bobcat North America Inc
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Filing: 1961-01-12
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Granted: 1964-01-21
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Expires: 1981-01-12
Abstract
No abstract record available.
Inventors
- 👤 Wayne R Howard
- 👤 Barry L Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:00
CPC Classifications
F; F16; F16D; F16D21/00; F16D21/02; F16D21/06; F16H; F16H45/00; F16H45/02; F16D2021/0684
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
151 words
A TRANSMISSION COMPRISING AN INPUT MEMBER, AN OUTPUT MEMBER, A HYDRODYNAMIC TORQUE CONVERTER HAVING AN IMPELLER ELEMENT, A TURBINE ELEMENT CONNECTED TO SAID OUTPUT ELEMENT FOR ROTATION THEREWITH AND A REACTOR ELEMENT, A DUAL CLUTCH HAVING SEQUENTIALLY ACTUATABLE FIRST AND SECOND CLUTCH PORTIONS, SAID FIRST CLUTCH PORTION BEING ACTUATABLE TO OPERATIVELY CONNECT SAID INPUT MEMBER TO THE IMPELLER ELEMENT OF SAID TORQUE CONVERTER, SAID SECOND CLUTCH PORTION BEING ACTUATABLE TO CONNECT SAID INPUT MEMBER DIRECTLY TO SAID OUTPUT MEMBER, PEDAL MEANS OPERATIVELY CONNECTED TO SAID CLUTCH PORTIONS FOR ACTUATING THEM, SAID PEDAL MEANS BEING PIVOTAL BETWEEN ONE EXTREME POSITION IN WHICH BOTH SAID CLUTCH PORTIONS ARE ENGAGED AND ANOTHER EXTREME POSITION IN WHICH BOTH SAID CLUTCH PORTIONS ARE DISENGAGED, AND MEANS FOR HOLDING SAID PEDAL MEANS IN A POSITION INTERMEDIATE ITS EXTREME POSITIONS AND IN WHICH INTERMEDIATE POSITION SAID FIRST CLUTCH PORTION IS ENGAGED AND SAID SECOND CLUTCH PORTION IS DISENGAGED.
References Cited (Backward Citations)
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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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |