Fluid flow control valves

Details Fluid flow control valves Fluid flow control valves

1978-12-22

1981-01-06

Cohan, Alan

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

137430, F16K 3118

Patent

active

042430666

ABSTRACT:
A valve incorporates a float chamber containing a float, and an air chamber above the float chamber containing a valve element movable vertically between a port in the bottom of the air chamber communicating with the top of the float chamber and an air vent in the top of the air chamber the float and the valve element being connected by a push rod passing through the port. The push rod has a cross section presenting several lobes. A plain tubular guide forms at least part of a passage between the float chamber and the air chamber terminating at the top end in the port. The push rod passes through the tubular guide, the lobes being a sliding fit therein. The valve element may rest in a cup-shaped cage within the air chamber. The upper end of the push rod may be slotted to permit it to straddle the bars of the cage and enter the cage so as to engage the valve element.

REFERENCES:
patent: 1116931 (1914-11-01), Schutt
patent: 1825776 (1931-10-01), Brubaker
patent: 2111473 (1938-03-01), Hudson
patent: 3834415 (1974-09-01), Herron

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