Constant flow valve

Details Constant flow valve Constant flow valve

1979-07-11

1981-02-17

Nilson, Robert G.

Fluid handling

Systems

Multiple inlet with single outlet

1373291, F16K 1900, G05D 701

Patent

active

042509190

ABSTRACT:
A dispensing valve mechanism includes means for automatically maintaining a constant flow of fluid through a flow channel under varying fluid source pressure utilizes a piston movable within a chamber in response to fluid pressure to regulate the available flow area of a single outlet port in the chamber. The piston is sized to permit fluid flow around the periphery of the piston, and may have an axial flow path therethrough to serve as the primary flow path through the valve mechanism. A spring yieldably opposes axial movement of the piston that would tend to decrease the effective area of the chamber outlet port. An adjustment screw is carried in the valve body for adjusting the force exerted by the spring. The valve is particularly suited for use in liquid dispensing apparatus.

REFERENCES:
patent: 1907162 (1933-05-01), Webb
patent: 2069022 (1937-01-01), Sisk
patent: 2584418 (1952-02-01), Branson
patent: 2647531 (1953-08-01), Berck
patent: 2777458 (1957-01-01), Stern
patent: 2800141 (1957-07-01), Hedland
patent: 2800919 (1957-07-01), Kates
patent: 2807279 (1957-09-01), Presnell
patent: 2845086 (1958-07-01), Waterman
patent: 2845087 (1958-07-01), Thomas
patent: 2865397 (1958-12-01), Chenault
patent: 2984261 (1961-05-01), Kates
patent: 3422842 (1969-01-01), Erickson
patent: 3540476 (1970-11-01), Fuerst
patent: 3800826 (1974-04-01), McCann

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