Fluid sprinkling – spraying – and diffusing – Conduit or nozzle attached irrigation-type decelerator
Patent
1988-05-25
1989-09-26
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Conduit or nozzle attached irrigation-type decelerator
138 45, B05B 1500
Patent
active
048694320
ABSTRACT:
A pressure modulated flow control valve, particularly adaptd for water irrigation applications, comprises an unitary elastomeric pin defining at least one flow passage therethrough and a flexible diaphragm overlying the flow passage, adjacent to an inlet to the valve. In operation, the diaphragm is exposed to water pressure prevalent at the inlet to the valve to flex into and vary the size of the passage to control and modulate the flow rate therethrough. In the preferred embodiment of this invention, the diaphragm will function to maintain a micro flow rate through the passage "near constant", e.g., selected from within the approximate overall maximum range of from 2.0 gph to 60.0 gph. The pin in interchangeable in a housing of the control valve to effect the desired near constant flow rate and is particularly adapted for use in pressure modulated drip-irrigation systems wherein water is communicated through the valve to a water distributing device, such as a sprayer or drip-type emitter.
REFERENCES:
patent: 2515073 (1950-07-01), Binnall et al.
patent: 2632476 (1953-03-01), Miller
patent: 4095745 (1978-06-01), Christy et al.
patent: 4113180 (1978-09-01), Christy
patent: 4313471 (1982-02-01), Lissau
Kashnikow Andres
Weldon Kevin P.
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