Earth working – Specific propelling means
Patent
1986-07-28
1989-04-11
Johnson, Richard J.
Earth working
Specific propelling means
172248, 172435, 180 648, 180327, 180 142, A01B 5102, A01B 7302
Patent
active
048197386
ABSTRACT:
An implement supporting vehicle comprises an elongate implement support frame, along one side of which two drive units which propel the vehicle are mounted equidistance from the center of the vehicle. Two castor wheels are mounted along the other side of the frame. The drive units are moveable between a first working direction in which the vehicle can be propelled in a first direction transverse to the longitudinal extent of the frame and a second transport direction in which the vehicle can be propelled in a direction substantially perpendicular to the first direction. A moveable operators cabin is mounted with the frame.
REFERENCES:
patent: 2449710 (1948-09-01), Miller
patent: 2551231 (1951-05-01), Anderson
patent: 2957254 (1960-10-01), Bederman
patent: 3261118 (1966-07-01), Litherland
patent: 3368292 (1968-02-01), Prinoth
patent: 3478833 (1969-11-01), Breon
patent: 3568778 (1971-03-01), Swisher
patent: 4204699 (1980-05-01), Gustafson
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