Valve with flexible sheet member and two port non-flexing backer

Details Valve with flexible sheet member and two port non-flexing backer Valve with flexible sheet member and two port non-flexing backer

1996-03-07

1997-08-26

Lee, Kevin

Valves and valve actuation

Electrically actuated valve

Including solenoid

251 611, 251331, 137884, 137885, F16K 712, F16K 3106

Patent

active

056603703

ABSTRACT:
A valve has a flexible sheet member which moves toward and away from a flat, non-flexing sheet member to cover and open two holes in the nonflexing sheet member to block or permit fluid flow between passageways in a second valve body portion member. The flexible sheet member is extendible into a recess formed in a first valve body portion member above the two holes so that fluid flows from one passageway through a chamber formed between the non-flexing sheet member surface and the faring surface of the flexible sheet member. The plunger head of a solenoid forces the flexible sheet member into contact with the non-flexing sheet member and when excited causes the plunger head to be moved out of contact with the flexible sheet member allowing the flexible sheet member to uncover the holes in the nonflexing sheet member. Vacuum is present at the valve site and draws the flexible sheet member away from the non-flexing sheet member substantially immediately as the plunger head is withdrawn from contact with the flexible sheet member. The solenoid is releasably engageable with a solenoid receiving opening in the first valve body portion at the valve site.

REFERENCES:
patent: 3312238 (1967-04-01), Voit, Jr.
patent: 3653408 (1972-04-01), Coiner
patent: 4304257 (1981-12-01), Webster
patent: 4848722 (1989-07-01), Webster
patent: 4852851 (1989-08-01), Webster
patent: 4858883 (1989-08-01), Webster
patent: 5197192 (1993-03-01), Wylie et al.

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