Elastomeric flow control valve

Details Elastomeric flow control valve Elastomeric flow control valve

1989-06-06

1990-03-20

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With cleaning means, drip collecting, waste disposal or soil...

Nozzle cleaner, flusher or drainer

23953313, 239542, 138 45, B05B 1502, B05B 132

Patent

active

049094416

ABSTRACT:
A pressure modulated flow control valve, particularly adapted for water irrigation applications, comprises an unitary elastomeric pin defining a flow passage therethrough, a sub-chamber formed entirely in the pin and communicating with an inlet to the valve, and a flexible diaphragm separating the sub-chamber from the flow passage. In operation, the diaphragm is exposed to water pressure prevalent in the sub-chamber to flex into and vary the size of the flow passage to control and modulate the flow rate therethrough. The interchangeable pin is mounted in a housing of the control valve to effect a preselected near constant flow rate through the flow passage.

REFERENCES:
patent: 2632476 (1953-03-01), Miller
patent: 3837363 (1974-09-01), Meronek
patent: 3899136 (1975-08-01), Harmony
patent: 4095745 (1978-06-01), Christy et al.
patent: 4113180 (1978-09-01), Christy et al.

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