Smoke detector with ionization chamber

Details Smoke detector with ionization chamber Smoke detector with ionization chamber

1987-02-19

1989-09-05

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250380, 250382, 250384, G01T 1185

Patent

active

048641413

ABSTRACT:
A smoke detector is provided having an ionization chamber (1). For counterbalancing the removal of ions (5.sub.1), taken out of the chamber by the violent air currents (C) passing through this chamber, these air currents are previously enriched with ions (7.sub.1), by causing them to pass through an ion reservoir (6) before being introduced into said chamber

REFERENCES:
patent: 3560737 (1971-02-01), Skildum
patent: 3731093 (1973-05-01), Scheidweiler et al.
patent: 3767917 (1973-10-01), Lampart et al.
patent: 3908957 (1975-09-01), Schutt
patent: 4171486 (1979-10-01), Dobrzanski
patent: 4185196 (1980-01-01), Byrne
patent: 4227085 (1980-10-01), Sunde
patent: 4488044 (1984-12-01), Rork et al.
patent: 4564762 (1986-01-01), Doherty et al.

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