Double valve assembly

Details Double valve assembly Double valve assembly

1981-10-26

1985-02-12

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

13724622, 137587, 251300, 75 34, F16K 336

Patent

active

044984987

ABSTRACT:
A double valve assembly for regulating the feed of particulate material to or from a pressure vessel comprises a valve casing containing a flow-regulating valve and pressure sealing valve in series. Particulate material is fed to the valve assembly through a feed tube located at the top of the casing. The flow-regulating valve comprises a dish-shaped valve member swingable from a first position wherein it confronts the bottom of the feed tube and blocks flow of material therethrough to a second position at one side of the feed tube. The bottom of the feed tube is constructed and arranged to guide the particulate material away from the second valve position and thereby facilitate swinging movement of the swingable member from its first to its second position.

REFERENCES:
patent: 1174729 (1916-03-01), Jones
patent: 1517786 (1924-12-01), Kus
patent: 3710808 (1973-01-01), Celada et al.
patent: 3799367 (1974-03-01), Grewer et al.

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