Motor vehicles – Motor as source of power for other machine – Hydraulic drive to other machine
Patent
1992-02-05
1993-07-13
Mitchell, David M.
Motor vehicles
Motor as source of power for other machine
Hydraulic drive to other machine
180 532, 180 537, 180 538, 180324, 180327, 180333, B60K 2500
Patent
active
052264971
ABSTRACT:
Apparatus, for the remote control of a carrier vehicle from the cab of an excavator which is rotatably mounted upon the back bed of the carrier vehicle through a center pin assembly, is accomplished with a hydrostatic pump operably connected to the crankshaft of the carrier engine. Electric controls in the excavator cab connect to the pump which selectively directs fluid to a motor which rotates a first gear which meshes with a second gear fixed to the carrier vehicle drive shaft. In alternate embodiments, the motor connects to a power take-off on the transmission. Carrier steering, braking, and throttle functions are also remotely controlled at the excavator cab through a combination of electric and hydraulic controls with the electric wires extending from the electric controls in the excavator cab, through a slip ring on the center pin assembly and to the respective function controls at various sites on the carrier vehicle. There are thus no hydraulic lines extending from the excavator to the carrier vehicle. The present invention is discussed primarily in connection with a carrier vehicle/excavator combination although other applications are also discussed.
REFERENCES:
patent: 2761569 (1956-09-01), Iserman
patent: 2959260 (1960-11-01), Johnson et al.
patent: 3599814 (1971-08-01), Brownfield
patent: 4318451 (1982-03-01), Liggett
patent: 4700802 (1987-10-01), Fought
patent: 4705450 (1987-11-01), Gano
McGuire Katherine
Mitchell David M.
Pike Andrew C.
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