Float control electrical circuit for a blade

Details Float control electrical circuit for a blade Float control electrical circuit for a blade

1975-09-24

1977-05-24

Cohen, Irwin C.

Motors: expansible chamber type

Differential

91437, 91451, 91464, 172795, 172809, F15B 1116, F15B 13043

Patent

active

040247961

ABSTRACT:
In a vehicle, such as a motor grader, having a work tool operated by at least one hydraulic cylinder, the position of the work tool being controlled by a main control valve, and the work tool being placed in a float condition by actuation of a second control valve, the improvement wherein the operator may override the float condition by actuation of the main control valve.

REFERENCES:
patent: 2179179 (1939-11-01), Fischel et al.
patent: 2604074 (1952-07-01), Glenny
patent: 2909342 (1959-10-01), Maltby
patent: 3452645 (1969-07-01), Barltrop
patent: 3608431 (1971-09-01), Pease
patent: 3630121 (1971-12-01), Landaeus et al.
patent: 3709103 (1973-01-01), Gershonovich et al.

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