Global Patent Index - EP 0826199 B1

EP 0826199 B1 2003-06-18 - ELECTRIC AIR IONISATION SMOKE DETECTOR

Title (en)

ELECTRIC AIR IONISATION SMOKE DETECTOR

Title (de)

RAUCHMELDER MIT ELEKTRISCHER LUFTIONISIERUNG

Title (fr)

DETECTEUR DE FUMEE A IONISATION D'AIR PAR VOIE ELECTRIQUE

Publication

EP 0826199 B1 (FR)

Application

EP 97914374 A

Priority

  • FR 9700434 W
  • FR 9603296 A

Abstract (en)

[origin: FR2746184A1] An air ionisation smoke detector including a detection chamber (1) with an anode (2) and a cathode (3) interconnected via a bias circuit (16) having a current strength measurement device (18), as well as an ionisation chamber (6) communicating with the detection chamber. Ions are electrically generated in the ionisation chamber then transferred into the detection chamber by means of a continuous stream of air with a low flow-rate.

IPC 1-7 (main, further and additional classification)

G08B 17/113

IPC 8 full level (invention and additional information)

G08B 17/113 (2006.01)

CPC (invention and additional information)

G08B 17/113 (2013.01)

Designated contracting state (EPC)

DE ES GB IT

DOCDB simple family

WO 9735287 A1 19970925; DE 69722871 D1 20030724; DE 69722871 T2 20040513; EP 0826199 A1 19980304; EP 0826199 B1 20030618; ES 2202599 T3 20040401; FR 2746184 A1 19970919; FR 2746184 B1 19980605