Ionization smoke detector

Details Ionization smoke detector Ionization smoke detector

1984-10-09

1986-12-23

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250385, G01T 1185, G08B 1710

Patent

active

046314121

ABSTRACT:
In a smoke detector of the ionization type having inner, auxiliary and outer electrodes providing inner and outer ionization chambers disposed one within the other, the electrodes and the associated circuitry are mounted on one side of a printed circuit board, the outer electrode conforming to the configuration and dimensions of the circuit board so as to define a box-like enclosure.

REFERENCES:
patent: 4150373 (1979-04-01), Ried, Jr.
patent: 4153840 (1979-05-01), Wieder
patent: 4258261 (1981-03-01), Conforti
patent: 4396840 (1983-08-01), Araki et al.

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