Automatic control system for earth-moving equipment

Details Automatic control system for earth-moving equipment Automatic control system for earth-moving equipment

1976-01-30

1977-10-11

Marlo, George J.

Earth working

Automatic power control

Land leveller type

172779, E02F 376

Patent

active

040530183

ABSTRACT:
The cutting angle or cutting depth of the blade of an earth-moving equipment such as a bulldozer is adjusted by a hydraulic pressure cylinder and the supply of pressurized liquid to and from the hydraulic pressure cylinder is controlled in accordance with the running speed of the bulldozer. In addition, the rate at which the cutting depth of the blade of the earth-moving equipment is adjusted is inversely proportional to the speed of the earth-moving equipment.

REFERENCES:
patent: 2654301 (1953-10-01), Bohmker
patent: 3251422 (1966-05-01), Allgaier et al.
patent: 3497014 (1970-02-01), Ask
patent: 3556225 (1971-01-01), Matsuzaki
patent: 3776322 (1973-12-01), Misch et al.
patent: 3831683 (1974-08-01), Ikeda
patent: 3957121 (1976-05-01), Takeda

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