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1. (WO1985004483) ELECTRIC DETECTOR OF PARTICLES FOR THE DETECTION OF A FIRE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1985/004483 International Application No.: PCT/FR1985/000060
Publication Date: 10.10.1985 International Filing Date: 25.03.1985
IPC:
G01N 27/70 (2006.01) ,G08B 17/11 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27
Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
62
by investigating the ionisation of gases; by investigating electric discharges, e.g. emission of cathode
68
using electric discharge to ionise a gas
70
and measuring current or voltage
G PHYSICS
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
17
Fire alarms; Alarms responsive to explosion
10
Actuation by presence of smoke or gases
11
using an ionisation chamber for detecting smoke or gas
Applicants:
P.G.E.P. PROFESSIONAL GENERAL ELECTRONIC PRODUCTS [FR/FR]; 130, rue Jean-Pierre Timbaud F-92400 Courbevoie, FR (AllExceptUS)
ROOS, André [NL/FR]; FR (UsOnly)
DUTERTRE-LADUREE, Daniel [FR/FR]; FR (UsOnly)
GOLDMAN, Max [FR/FR]; FR (UsOnly)
GOLDMAN, Alice [FR/FR]; FR (UsOnly)
Inventors:
ROOS, André; FR
DUTERTRE-LADUREE, Daniel; FR
GOLDMAN, Max; FR
GOLDMAN, Alice; FR
Agent:
LAGET, Jean-Loup; Cabinet Pierre Loyer 18, rue de Mogador F-75009 Paris, FR
Priority Data:
84/0464526.03.1984FR
Title (EN) ELECTRIC DETECTOR OF PARTICLES FOR THE DETECTION OF A FIRE
(FR) DETECTEUR ELECTRIQUE DE PARTICULES POUR LA DETECTION D'INCENDIE
Abstract:
(EN) The sensor (1) has its operation point situated towards the Townsed discharge region, and the capture of ions results in an increase of the current traversing the sensor. The sensor electrodes are comprised of alpha-bent wires.
(FR) Le capteur (1) a son point de fonctionnement situé vers la zone de la décharge de Townsed, et la capture d'ions entraîne une augmentation du courant qui le traverse. Les électrodes du capteur sont constituées par des fils repliés en alpha.
Designated States: AU, BR, DK, FI, JP, NO, US
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
FI854629NO19854686US4698586JPS61501867CA1263767AU1985041524