US3572164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydromechanical transmission
Assignee: Motors Liquidation Co
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Filing: 1969-09-19
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Granted: 1971-03-23
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Expires: 1989-09-19
Abstract
Abstract A HYDROMECHANICAL TRANSMISSION HAVING A VARIABLE RATIO HYDROSTATIC DRIVE UNIT, TWO PLANETARY GEAR SETS AND A PLURALITY OF FRICTION DRIVE ESTABLISHING DEVICES WITH ONE SUCH DEVICE ARRANGED IN A SIMPLE DIRECTION MAINTAINING GEAR TRAIN AND ANOTHER SUCH DEVICE ARRANGED IN A SIMPLE DIRECTION REVERSING GEAR TRAIN AND ALL THE COMPONENTS COMBINED TO PROVIDE AT LEAST THREE DIFFERENT SPEED RANGE DRIVES WITH EACH DRIVE ESTABLISHED BY ENGAGEMENT OF ONLY ONE FRICTION DRIVE ESTABLISHING DEVICE AND EACH SUCH DEVICE SPEED SYNCHRONIZED FOR ITS ENGAGEMENT AT A PREDETERMINED TRANSMISSION INPUT-OUTPUT SPEED RATIO.
Inventors
- 👤 Marion D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:23
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/02; F16H47/04; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0833; F16H37/084; F16H2037/088; F16H2037/0886
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |