Hydraulic circuit for a tractor drawn implement having remote va

Details Hydraulic circuit for a tractor drawn implement having remote va Hydraulic circuit for a tractor drawn implement having remote va

1981-03-03

1982-10-19

Stouffer, Richard T.

Land vehicles

Wheeled

Extensible

60484, 91520, 137 99, 13710121, 172401, 172413, 172 2, A01B 6322

Patent

active

043546889

ABSTRACT:
An implement having a rotary flow divider controlling fluid to and from at least two independent hydraulic rams for raising and lowering the implement in a level manner. A counter monitors the revolutions of the flow divider and actuates an electric circuit which controls solenoid valves to stop the implement at the proper height. A cab mounted adjustable count selector is provided to adjust the desired height of the implement.

REFERENCES:
patent: 3486761 (1969-12-01), Fay
patent: 3495610 (1970-02-01), Van Aken
patent: 3733813 (1973-05-01), Gordon
patent: 3939886 (1976-02-01), Tucek
patent: 4006752 (1977-02-01), De Vale
patent: 4120233 (1978-10-01), Heiser et al.
patent: 4221266 (1980-09-01), Fardal
patent: 4237688 (1980-12-01), Demmers

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