G - Physics – 05 – D
Patent
G - Physics
05
D
214/27, 341/98
G05D 3/00 (2006.01) E02F 3/43 (2006.01) E02F 9/26 (2006.01)
Patent
CA 1060562
ABSTRACT OF THE DISCLOSURE An automatic control system for a backhoe utilizing a bucket at the end of a rigid boom including an actuator co- operating with a control valve that controls the flow of fluid to hydraulic rams that pivot the boom. The control system also includes position sensing means between the boom and the frame and a manually settable control element both of with produce output signals that are combined and activate the actuator so that the implement is pivoted automatically to a required position at a rate which corresponds to the differences between the respective signals.
261882
Barton Robert M.
Parquet Donald J.
Pedersen Carl O.
LandOfFree
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