Hydraulic control for earth working machines

Details Hydraulic control for earth working machines Hydraulic control for earth working machines

1988-06-13

1989-05-30

Eickholt, Eugene M.

Excavating

Railway graders

Side former

91420, 91461, 60452, 60461, 13759615, 1376256, 280 90, 37DIG7, 37DIG9, E02F 502, F15B 1108

Patent

active

048337986

ABSTRACT:
The hydraulic control is constructed for time-sharing of the pump which normally controls the turning mechanism, to operate other hydraulic equipment in conjunction with other pumps.

REFERENCES:
patent: 3862643 (1975-01-01), Dezelan et al.
patent: 3935792 (1976-02-01), Dezelan et al.
patent: 4201052 (1980-05-01), Breeden et al.
patent: 4353289 (1982-10-01), Lonnemo
patent: 4407122 (1983-10-01), Nanda
patent: 4475442 (1984-10-01), Breeden
patent: 4480527 (1984-11-01), Lonnemo
patent: 4611527 (1986-09-01), Breeden
patent: 4724673 (1988-02-01), Curnow
patent: 4753157 (1988-06-01), Lonnemo et al.

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