Valve with inflatable membrane

Details Valve with inflatable membrane Valve with inflatable membrane

1999-04-19

2000-07-18

Walton, George L.

Fluid handling

With leakage or drip collecting

137240, 13761418, 251 635, 251 636, F16K 1120, F16K 31124, B08B 9032

Patent

active

060892552

ABSTRACT:
A valve comprises a body including a chamber and two superposed closures moving in the chamber and the bottom part of the chamber includes a first seat for one closure and a second seat for the other closure. The closures are each carried by a swing mobile between a position in which the closure bears in sealed fashion on the corresponding seat and a position in which the closure is spaced from the seat. The space between the two closures contains an elastic material membrane closing a chamber into which a compressed air feed discharges. The membrane can therefore be inflated and pressed in sealed fashion onto the top closure to close and seal the inlet of a passage which discharges into a space between the two closures.

REFERENCES:
patent: 2705016 (1955-03-01), Saar
patent: 4254792 (1981-03-01), Schadel
patent: 4292992 (1981-10-01), Bhide' 137240

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