Fluid control system

Details Fluid control system Fluid control system

1981-06-04

1983-08-09

Cohan, Alan

Fluid handling

Systems

Programmer or timer

1375525, 91527, F15B 1302

Patent

active

043973345

ABSTRACT:
Control valves govern the operation of a plurality of hydraulically-activated devices movable between extended and retracted positions. The control valves are interconnected to a plurality of control lines which carry hydraulic fluid and activation of a particular control valve will establish a certain hydraulic signal pressure pattern within the control lines indicative of a certain commanded position of one of the devices. A decoding section responsive to the signal pressure pattern allows for high pressure hydraulic flow to the selected device and in addition sets up a low pressure return path therefor. A significantly greater number of devices can be controlled with a relatively few control lines thereby reducing construction, maintenance and material costs.

REFERENCES:
patent: 3589242 (1971-06-01), Peterson
patent: 3708047 (1973-01-01), Kuhnle

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