US3340748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-engine drive mechanism
Assignee: UNITWIN CORP
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Filing: 1965-01-28
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Granted: 1967-09-12
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Expires: 1985-01-28
Abstract
No abstract record available.
Inventors
- 👤 Richard E Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:00
CPC Classifications
B; B64; B64D; B64D35/00; F; F16; F16H; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0806; F16H37/0826; F16H2700/00; F16H2700/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A VEHICLE HAVING A VEHICLE-PROPELLING MEANS, A FIRST SHAFT CONNECTED TO DRIVE THE PROPELLING MEANS, TWO PRIME MOVERS FOR DRIVING THE FIRST SHAFT, AND GEARING MECHANISM INTERPOSED BETWEEN SAID TWO PRIME MOVERS AND THE FIRST SHAFT FOR SELECTIVELY DRIVING THE FIRST SHAFT BY BOTH SAID TWO PRIME MOVERS AT A FIRST SPEED RATIO WITH RESPECT THERETO AND FOR DRIVING THE FIRST SHAFT BY ONLY ONE OF SAID TWO PRIME MOVERS AT A SECOND SPEED RATIO WITH RESPECT THERETO, SAID GEARING MECHANISM COMPRISING TWO OPPOSED ALIGNED SUN GEARS, AT LEAST ONE PLANET GEAR MESHING WITH THE SUN GEARS AND ROTATABLE AS A WHOLE ABOUT THE COMMON AXIS OF THE SUN GEARS, MEANS MOUNTING THE PLANET GEAR FOR ROTATION ABOUT ITS AXIS, SAID MOUNTING MEANS BEING DRIVINGLY CONNECTED TO THE FIRST SHAFT SO AS TO ROTATE IN SYNCHRONISM THEREWITH, TWO SECOND SHAFTS DRIVINGLY CON-
Claim 2
Dependent Claim
142 words
A VEHICLE HAVING A VEHICLE-PROPELLING MEANS, A FIRST SHAFT CONNECTED TO DRIVE THE PROPELLING MEANS, TWO PRIME MOVERS FOR DRIVING THE FIRST SHAFT, AND GEARING MECHANISM INTERPOSED BETWEEN SAID TWO PRIME MOVERS AND THE FIRST SHAFT FOR SELECTIVELY DRIVING THE FIRST SHAFT BY BOTH SAID TWO PRIME MOVERS AT A FIRST SPEED RATIO WITH RESPECT THERETO AND FOR DRIVING THE FIRST SHAFT BY ONLY ONE OF SAID TWO PRIME MOVERS AT A SECOND SPEED RATIO WITH RESPECT THERETO, SAID GEARING MECHANISM COMPRISING TWO OPPOSED ALIGNED SUN GEARS, AT LEAST ONE PLANET GEAR MESHING WITH THE SUN GEARS AND ROTATABLE AS A WHOLE ABOUT THE COMMON AXIS OF THE SUN GEARS, MEANS MOUNTING THE PLANET GEAR FOR ROTATION ABOUT ITS AXIS, SAID MOUNTING MEANS BEING DRIVINGLY CONNECTED TO THE FIRST SHAFT SO AS TO ROTATE IN SYNCHRONISM THEREWITH, TWO SECOND SHAFTS DRIVINGLY CON-
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |