Laser beam level control with automatic override

Details Laser beam level control with automatic override Laser beam level control with automatic override

1977-12-16

1979-11-06

Stouffer, Richard T.

Earth working

Automatic power control

Land leveller type

172 12, A01B 63111, A01B 63112

Patent

active

041732588

ABSTRACT:
A laser beam level control system for an earth-moving machine is provided with an automatic override function to temporarily block blade-down signals and raise the blade when lowering it or leaving it at its previous height would increase the force required to drive the machine across the ground above a preselected value which does not exceed the tractional force capability of the machine's drive wheels or exceed the machine's available horsepower.

REFERENCES:
patent: 3497014 (1970-02-01), Ask
patent: 3887012 (1975-06-01), Scholl et al.
patent: 3957121 (1976-05-01), Takeda
patent: 4077475 (1978-03-01), Hino et al.

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