Automatic control system for earth-moving equipment

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

1974-05-22

1976-05-18

Pellegrino, Stephen C.

Earth working

Automatic power control

Land leveller type

E02F 376

Patent

active

039571211

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.

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 et al.

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