EP 1728224 A1 20061206 - FIRE DETECTOR WITH SEVERAL ANALYSIS VOLUMES
Title (en)
FIRE DETECTOR WITH SEVERAL ANALYSIS VOLUMES
Title (de)
BRANDMELDER MIT MEHREREN UNTERSUCHUNGSVOLUMINA
Title (fr)
D TECTEUR D'INCENDIE POURVU DE PLUSIEURS VOLUMES D'ANALYSE
Publication
Application
Priority
- EP 2004053047 W 20041123
- DE 102004001699 A 20040113
Abstract (en)
[origin: WO2005069242A1] The invention relates to a fire detector (1) working according to the scattered radiation principle and comprising at least one radiation emitter (5.1,5.2,5.3) and at least one radiation receiver (6.1,6.2,6.3), whose radiation paths form a scattering volume (7.1,7.2,7.3). The fire detector (1) comprises, in addition to at least one first radiation emitter (5.1) and a first radiation receiver (6.1), at least one second radiation emitter (5.2) and a second radiation receiver (6.2) whose radiation paths form at least two locally distanced scattering volumes (7.1, 7.2).
IPC 8 full level
G08B 17/107 (2006.01); G08B 29/18 (2006.01)
CPC (source: EP US)
G08B 17/107 (2013.01 - EP US); G08B 29/24 (2013.01 - EP US); G08B 29/26 (2013.01 - EP US); G08B 17/113 (2013.01 - EP US)
Citation (search report)
See references of WO 2005069242A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 102004001699 A1 20050804; CN 100533497 C 20090826; CN 1902669 A 20070124; EP 1728224 A1 20061206; EP 1728224 B1 20120530; JP 2006526211 A 20061116; JP 4096020 B2 20080604; US 2008258925 A1 20081023; US 7978087 B2 20110712; WO 2005069242 A1 20050728
DOCDB simple family (application)
DE 102004001699 A 20040113; CN 200480040382 A 20041123; EP 04817371 A 20041123; EP 2004053047 W 20041123; JP 2006508318 A 20041123; US 58620804 A 20041123