Pneumatic membrane switches and switch assembly

Details Pneumatic membrane switches and switch assembly Pneumatic membrane switches and switch assembly

1993-09-22

1995-06-20

Nilson, Robert G.

Valves and valve actuation

Hermetic flexible wall seal for actuator

Diaphragm

251339, F16K 3100

Patent

active

054255295

ABSTRACT:
A pneumatic membrane switch includes a body having an opening and a valve disposed within the opening. An actuator stem extends from the end of the valve, and the actuator stem is adapted to open the valve when moved inwardly with respect to the valve body. A flexible membrane covers the opening and is shiftable between standby and actuate positions. The membrane contacts and moves the actuator stem inwardly to open the valve when the membrane is shifted to the actuate position.

REFERENCES:
patent: 2623785 (1952-12-01), Henchert
patent: 2693932 (1954-11-01), Richards
patent: 2734773 (1956-02-01), Ivins
patent: 4667931 (1987-05-01), Egert

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