Fluid handling – Systems – Programmer or timer
Patent
1976-08-11
1978-09-26
Cohan, Alan
Fluid handling
Systems
Programmer or timer
13762418, 239 66, 251230, A01G 2502
Patent
active
041162161
ABSTRACT:
A valve comprises a steppable counting mechanism stepped with each new application of pressurized fluid to its inlet and effective to cause the valve member to open (or close) after the counting mechanism has been stepped a predetermined number of times, whereby the valve may be opened (or closed) by merely controlling the number of times pressurized fluid is applied to the valve inlet. The steppable counting mechanism includes a pair of nestable cup-shaped members in which the inner one is fixed to the housing and the outer one is rotatably coupled to a valve member within the housing which is reciprocated with each application of pressurized fluid to the housing inlet.
Also described is a fluid distribution system including a plurality of such valves connected to a common supply line wherein the valve counting mechanisms are preset to be actuated at different counts such that the valves can be selectively actuated from a common remote location by the number of times the pressurized fluid is turned on and off in the common supply line.
REFERENCES:
patent: 2793908 (1957-05-01), Carver
patent: 3018788 (1962-01-01), Perlis
patent: 3408006 (1968-10-01), Stanwood
Barish Benjamin J.
Cohan Alan
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