Positioning apparatus for drawn implement

Earth working – Automatic power control – Obstruction sensing type

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Details

180131, 248654, A01B 6332, B62D 126

Patent

active

051562197

ABSTRACT:
Apparatus for guiding a drawn agricultural implement of the type which has a transverse tool bar and a pull hitch. The apparatus controls the horizontal angular orientation of the tool bar relative to the pull hitch to guide the implement.

REFERENCES:
patent: 4031962 (1977-06-01), Ellinger
patent: 4074766 (1978-02-01), Orthman
patent: 4281720 (1981-08-01), Tusing
patent: 4336846 (1982-06-01), Boetto
patent: 4449590 (1984-05-01), Williamson
patent: 4607716 (1986-08-01), Beck
patent: 4640365 (1987-02-01), Schmidt
patent: 4835691 (1989-05-01), Rotem et al.
patent: 4930581 (1990-06-01), Fleischer et al.
patent: 5025866 (1991-06-01), Schmidt et al.
patent: 5031704 (1991-07-01), Fleischer et al.
Sunco, "Acura Trak", flyer, Feb. 1989.
Lincoln Creek Manufacturing, "Quick Hitch", flyer, Sep. 1988.

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