Implement positioning hydraulic control system

Details Implement positioning hydraulic control system Implement positioning hydraulic control system

1975-07-14

1976-12-14

Geoghegan, Edgar W.

Earth working

Mounting for pushed tool at end of motor vehicle

Transversely mounted blade

37DIG10, 91411R, 91413, 60484, 60486, E02F 376

Patent

active

039970078

ABSTRACT:
A hydraulic control system is disclosed for selectively directing fluid to a pair of reciprocable jacks connectably disposed intermediate a frame and an implement such as a bulldozer blade for tilting and tipping the blade relative to the frame. The control system includes a fluid supply source, a flow divider valve which is in fluid communication with the supply source for providing equal flow to a pair of outlet paths, a first control valve arrangement for selectively communicating fluid from one of the outlet paths to either end of one of the jacks, and a second control valve arrangement for selectively communicating fluid from the other one of the outlet paths to either end of the other one of the jacks.

REFERENCES:
patent: 1999834 (1935-04-01), Ernst
patent: 3350986 (1967-11-01), Berta et al.
patent: 3700044 (1972-10-01), Berg
patent: 3705631 (1972-12-01), Seaberg
patent: 3774696 (1973-11-01), Horsch
patent: 3795280 (1974-03-01), Casey
patent: 3854380 (1974-12-01), Casey

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