1975-04-25
1976-06-29
Makay, Albert J.
91412, E02F 340
Patent
active
039660664
ABSTRACT:
A hydraulic circuit is disclosed in which a control valve is connected in parallel between a first and second moving circuits. The first and second moving circuits include interrupted series-type valves responsive to pilot input signals. The control valve is responsive to the input signal to the first series valve wherein a portion of the flow from the first circuit is diverted to the second circuit, thereby permitting the operation of both circuit end functions at maximum speed.
REFERENCES:
patent: 3578188 (1971-05-01), Drieschner
patent: 3650425 (1972-03-01), Hallman et al.
patent: 3653523 (1972-04-01), Long et al.
patent: 3869;054 (1975-03-01), Moreau
Caterpillar Tractor Co.
Makay Albert J.
Walters Ralph E.
Weaver Ross
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