Fluid handling – Systems – Programmer or timer
Patent
1987-08-20
1988-11-01
Rivell, John
Fluid handling
Systems
Programmer or timer
251118, 137469, 137536, E03B 707
Patent
active
047812176
ABSTRACT:
A pulse-irrigation system comprises a pressurized water supply line supplying water in a continuous, non-interrupted manner, a water irrigation device, and a pulsating device for converting the pressurized water of the line to the pulsating output when supplied to the irrigation device. The pulsator device comprises an inlet orifice of restricted cross-sectional area, an outlet orifice of substantially larger cross-sectional area, and a valve which is normally closed, automatically opens at a predetermined opening pressure lower than that of the inlet pressure to connect its inlet to its outlet, and automatically closes at a predetermined closing pressure lower than its opening pressure. The pulsator device further includes a reservoir for the fluid and located between the inlet orifice and the valve such that when the valve is closed the reservoir fills up and at the same time builds up pressure until the valve opens to discharge the fluid within the reservoir.
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Barish Benjamin J.
Rivell John
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