Automatic control system for backhoe

Details Automatic control system for backhoe Automatic control system for backhoe

1976-01-02

1977-04-05

Spar, Robert J.

37DIG1, 91 1, 91361, 214762, E02F 332

Patent

active

040157296

ABSTRACT:
An automatic control system for a backhoe utilizing a bucket at the end of a rigid boom is disclosed herein. The automatic control system includes an actuator cooperating with a control valve that controls the flow of fluid to hydraulic rams that pivot the boom. The control system also includes position indicating means between the boom and the frame and a manually settable control element both of which produce output signals that are combined and activate the actuator so that the implement is moved at a rate which corresponds to the differences between the respective signals.

REFERENCES:
patent: 3339763 (1967-09-01), Caywood et al.
patent: 3915325 (1975-10-01), Lark et al.
patent: 3950687 (1976-04-01), Watson, Jr.

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