Hermetically sealed valve

Details Hermetically sealed valve Hermetically sealed valve

1983-06-13

1985-11-12

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

251 65, 25112911, 251901, F16K 3110, F16K 718

Patent

active

045521778

ABSTRACT:
A hermetically sealed valve has a magnetically actuated rolling diaphragm valve mechanism, and providing an in-line variable opening valve that is completely sealed and requires no shaft, bushings or moving components through the valve body. This provides a valve with a generally in-line flow, which may be completely isolated from contaminants or from the outside environment. The magnetic actuating mechanism permits precise gradual positional control of the valve and at the same time provides considerably greater actuation force against differential pressure across the valve than has previously been possible. The valve actuation mechanism is readily adaptable to digital control techniques.

REFERENCES:
patent: 2297082 (1942-09-01), Staats
patent: 2720378 (1955-10-01), Otto
patent: 2977972 (1961-04-01), Billeter et al.
patent: 3355140 (1967-11-01), Andersen
patent: 3690344 (1972-09-01), Brumm
patent: 4452423 (1984-06-01), Beblavi et al.

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