Title: Ionization smoke detector having improved stability and sensitivity

Abstract: An ionization smoke detector is disclosed wherein an electric field is established in an ionization chamber for reducing detector instability caused by air currents acting on the detector. An improved structure for enhancing detector sensitivity by establishing a unipolar region in the chamber is described.

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Inventors: Byrne, Michael (Farranshone, IE)

Application Number: 869304
Filing Date: 1978-01-13
Publication_date: 1980-01-22
Assignee: General Electric Company (New York, NY)
Primary Class(es): 250/381
Other Classes:
US Patent Ref:

2994768	Aug, 1961	Derfler	250/381.
3233100	Feb, 1966	Lampart	250/381.
3913082	Oct, 1975	Hamm	250/384.
3959788	May, 1976	Tipton et al.	250/381.

Other Refs:
Primary Examiner: Willis, Davis L.
Assistant Examiner:
Attorney: Powers; George R., Nieves; Carlos, Cullen; John F.