High temperature pressure switch assembly for use with explosion

Details High temperature pressure switch assembly for use with explosion High temperature pressure switch assembly for use with explosion

1989-02-08

1990-01-16

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200144R, 340544, H01H 3534

Patent

active

048944971

ABSTRACT:
A high temperature pressure switch assembly for an explosion-proof enclosure used in hazardous atmospheres comprises an electrical control switch for a remote power source supplying electrical power to the enclosure, and a pressure responsive member which actuates the control switch to disconnect the power source in response to a small but abrupt pressure rise within the enclosure which indicates an explosion, severe electrical arcing or insulation pyrolysis therewithin.

REFERENCES:
patent: 3378657 (1968-04-01), Smith
patent: 3433911 (1969-03-01), Jensen
patent: 3535878 (1970-10-01), Romanowski
patent: 3717734 (1973-02-01), Wertheimer
patent: 4225760 (1980-09-01), Griffith
patent: 4317971 (1982-03-01), Roth

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