Combination backhoe vehicle and bulldozer apparatus

Details Combination backhoe vehicle and bulldozer apparatus Combination backhoe vehicle and bulldozer apparatus

1988-11-23

1990-10-30

Johnson, Richard J.

Earth working

Mounting for pushed tool at end of motor vehicle

Transversely mounted blade

172822, 414687, E02F 377

Patent

active

049662406

ABSTRACT:
A bulldozer apparatus for a working vehicle comprising a vertically pivotable arm assembly, and a blade pivotable on a fore and aft axis extending along a center position of the vehicle. Two hydraulic cylinders are disposed at opposite sides of the fore and aft axis for causing pivotal movement of the blade such that the blade is pivotable in opposite directions with extensions of the hydraulic cylinders. Two engaging devices extend substantially longitudinally of the vehicle at opposite positions across the fore and aft axis and interconnect the blade and the arm assembly for relative pivotal movement.

REFERENCES:
patent: 2137829 (1938-11-01), Austin
patent: 2753638 (1956-07-01), Mork
patent: 3083480 (1963-04-01), Kirchler
patent: 3759110 (1973-09-01), Davis
patent: 3926263 (1975-12-01), Frisbee
patent: 4290214 (1981-09-01), Stepe
patent: 4337837 (1982-07-01), Nissen
patent: 4364439 (1982-12-01), Asal
patent: 4552503 (1985-11-01), Mouri

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