Fire detector having means for heating the support member of an

Details Fire detector having means for heating the support member of an Fire detector having means for heating the support member of an

1974-12-10

1976-06-01

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

G01N 2312

Patent

active

039611957

ABSTRACT:
A fire detector comprising a housing defining an ionization chamber and an electrode supported in the housing by means of a support member made of an insulating material. In order to prevent leakage currents flowing between the electrode and the housing a portion of the support member between the electrode and the housing is heated. The formation of moisture on that portion is thus prevented.

REFERENCES:
patent: 1099365 (1914-06-01), Henderson
patent: 2660656 (1953-11-01), Wilkie
patent: 3733596 (1973-05-01), Arima
patent: 3767917 (1973-10-01), Lampart et al.

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