Differential pressure switch with sealed contacts

Details Differential pressure switch with sealed contacts Differential pressure switch with sealed contacts

1991-02-11

1992-07-21

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

73723, 200 83Y, H01H 3534

Patent

active

051325004

ABSTRACT:
A differential pressure switch has a main switch body divided into three chambers by means of two diaphragms, thereby sealing the center chamber that contains a snap-action switch. The two diaphragms are mechanically connected by a strut that can move only along a single line of motion, so that movement of one diaphragm is transmitted to the other. Movement of the strut is coupled to an actuator of the snap action to produce the desired switching action.

REFERENCES:
patent: 3423552 (1969-01-01), Sipin
patent: 3752942 (1973-08-01), McAfee
patent: 4081636 (1978-03-01), Rice
patent: 4190752 (1980-02-01), Rogers
patent: 4277227 (1981-07-01), Jenkins
patent: 4433219 (1984-02-01), Dietz
patent: 4469923 (1984-09-01), Charboneau
patent: 4503301 (1985-03-01), Kurtz
patent: 4692574 (1987-09-01), Berkhof
patent: 4743716 (1988-03-01), Tsukioka
patent: 5001317 (1991-03-01), Atkinson

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