Timer controlled valve

Details Timer controlled valve Timer controlled valve

1976-12-06

1978-05-23

Cohan, Alan

Fluid handling

Systems

Programmer or timer

1376242, 251131, G05G 2100

Patent

active

040905322

ABSTRACT:
A self-contained battery-operated three-way control valve is repetitively cycled by a clock timer for cyclical control of an automatic hydraulic valve. The control valve is driven to one or the other of two limit positions by a reversible motor under control of forward and reverse motor circuits that are sequentially energized by a timer and de-energized by limit switches. A reverse control, also operated by the timer, selects one or the other of the motor circuits.

REFERENCES:
patent: 2580122 (1951-12-01), Parker
patent: 3520332 (1970-07-01), Willard

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