Motor vehicles – Having four wheels driven – Including pump and fluid motor – or generator and electric...
Patent
1978-05-30
1979-12-11
Peters, Jr., Joseph F.
Motor vehicles
Having four wheels driven
Including pump and fluid motor, or generator and electric...
60484, 180 14A, B60K 2504
Patent
active
041778707
ABSTRACT:
A motor grader is provided with an electrical control circuit for automatically effecting engagement, speed, and direction control of an auxiliary hydrostatic front wheel drive system to augment the primary engine-driven rear wheel drive system.
REFERENCES:
patent: 3272279 (1966-09-01), Budzich
patent: 3298252 (1967-01-01), Harris et al.
patent: 3458005 (1969-07-01), Malm et al.
patent: 3584698 (1971-06-01), Larson
patent: 3874470 (1975-04-01), Greene
patent: 3894606 (1975-07-01), Hunck
patent: 3997017 (1976-12-01), Campbell et al.
patent: 4077484 (1978-03-01), Dezelan
Deere & Company
McGiehan Donn
Peters Jr. Joseph F.
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