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Machine translation
1. (WO1979001042) APPARATUS AND METHODS FOR DETECTING AN INCIPIENT FIRE CONDITION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/001042    International Application No.:    PCT/US1979/000305
Publication Date: 29.11.1979 International Filing Date: 08.05.1979
IPC:
G08B 17/12 (2006.01)
Applicants:
Inventors:
Priority Data:
904229 09.05.1978 US
Title (EN) APPARATUS AND METHODS FOR DETECTING AN INCIPIENT FIRE CONDITION
(FR) APPAREIL ET PROCEDES DE DETECTION D"UNE SITUATION DE DEBUT D"INCENDIE
Abstract: front page image
(EN)Apparatus and methods for detecting an incipient fire condition based on a shift in the size distribution of particles generated by a developing incipient fire condition. Particulate mass concentrations of at least two different particulate sizes are monitored and the ratio of the outputs from the sensing devices (22, 24) is processed as an indication of an incipient fire condition. In another form of the invention, the rate of change of the ratio of the outputs from the monitoring devices (22a, 24a) is processed as an indication of an incipient fire condition.
(FR)Appareil et procedes de detection d"une situation de debut d"incendie bases sur un changement dans la distribution des grosseurs de particules produites par une situation de debut d"incendie qui se developpe. Des concentrations de particules de deux grosseurs differentes au moins sont commandees et le rapport des sorties provenant des dispositifs detecteurs (22, 24) est traite sous forme d"indication d"une situation d"un debut d"incendie. Dans une autre forme de l"invention, le taux de changement du rapport des sorties des dispositifs de controle (22a, 24a) est traite pour indiquer une situation de debut d"incendie.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)