Patent US3151503A successfully refreshed from Google Patents.
US3151503A
Expired / Lapsed
US
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Transmission system
Assignee: Individual
•
Filing: 1958-12-01
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Granted: 1964-10-06
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Expires: 1978-12-01
Abstract
No abstract record available.
Inventors
- 👤 Louis J Keller
- 👤 Cyril N Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:41
CPC Classifications
F; F16; F16H; F16H3/00; F16H2712/00; F16H2712/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A SELF-PROPELLED VEHICLE HAVING INDEPENDENTLY ROTATABLE PROPULSION WHEELS AND A SOURCE OF POWER FOR DRIVING SAID WHEELS, A SEPARATE TRANSMISSION SYSTEM FOR PROPELLING EACH OF SAID WHEELS, EACH SAID TRANSMISSION SYSTEM COMPRISING A PAIR OF CLUTCHES, EACH SAID CLUTCH COMPRISING A PAIR OF ROTATABLE, COAXIALLY MOUNTED CLUTCH PLATES ADAPTED FOR MOVEMENT INTO AND OUT OF FRICTIONAL CLUTCHING ENGAGEMENT WITH ONE ANOTHER, BELT DRIVE MEANS INTERCONNECTING ONE CLUTCH PLATE OF EACH CLUTCH WITH EACH OTHER AND WITH THE SOURCE OF POWER AND ADAPTED TO ROTATE SAID CLUTCH PLATES SIMULTANEOUSLY IN THE SAME DIRECTION, BELT DRIVE MEANS INTERCONNECTING THE OTHER CLUTCH PLATE OF EACH CLUTCH WITH EACH OTHER AND WITH THE PROPULSION WHEEL, THE CONNECTION BETWEEN THE BELT DRIVE AND THE CLUTCH PLATES BEING SUCH THAT EACH PLATE DRIVES THE BELT
Claim 2
Dependent Claim
130 words
IN A SELF-PROPELLED VEHICLE HAVING INDEPENDENTLY ROTATABLE PROPULSION WHEELS AND A SOURCE OF POWER FOR DRIVING SAID WHEELS, A SEPARATE TRANSMISSION SYSTEM FOR PROPELLING EACH OF SAID WHEELS, EACH SAID TRANSMISSION SYSTEM COMPRISING A PAIR OF CLUTCHES, EACH SAID CLUTCH COMPRISING A PAIR OF ROTATABLE, COAXIALLY MOUNTED CLUTCH PLATES ADAPTED FOR MOVEMENT INTO AND OUT OF FRICTIONAL CLUTCHING ENGAGEMENT WITH ONE ANOTHER, BELT DRIVE MEANS INTERCONNECTING ONE CLUTCH PLATE OF EACH CLUTCH WITH EACH OTHER AND WITH THE SOURCE OF POWER AND ADAPTED TO ROTATE SAID CLUTCH PLATES SIMULTANEOUSLY IN THE SAME DIRECTION, BELT DRIVE MEANS INTERCONNECTING THE OTHER CLUTCH PLATE OF EACH CLUTCH WITH EACH OTHER AND WITH THE PROPULSION WHEEL, THE CONNECTION BETWEEN THE BELT DRIVE AND THE CLUTCH PLATES BEING SUCH THAT EACH PLATE DRIVES THE BELT
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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |