G - Physics – 08 – B
Patent
G - Physics
08
B
358/21
G08B 17/10 (2006.01) G08B 17/11 (2006.01) G08B 17/113 (2006.01)
Patent
CA 1134068
SMOKE DETECTOR HAVING UNIPOLAR IONIZATION CHAMBER ABSTRACT OF THE DISCLOSURE A smoke detector of superior smoke sensitivity characterized by a compact unipolar ionization chamber in which the ionization area or zone is situated and defined between the source of alpha particles and an electrode which confronts the source; another electrode, which attracts the unipolar charge carriers, is situated on an indirect path from the source, preferably being behind such source with respect to the pattern of radiation emitted therefrom.
336437
Borden Ladner Gervais Llp
General Signal Corporation
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