EP 0041952 B1 19850710 - DANGER DETECTION DEVICE WITH DETECTOR
Title (en)
DANGER DETECTION DEVICE WITH DETECTOR
Publication
Application
Priority
CH 1113779 A 19791217
Abstract (en)
[origin: WO8100636A1] In a detection arrangement comprising a central processing unit (E) and signalling devices (M) remotely located, the energy transmission from a radiation source (Q) and the signal return takes place exclusively optically by means of radiation conductor elements, so called optical conductors (L1, L2), through which the signalling devices are connected to the processing unit (E). The signalling devices (M) contain a detector (F), preferably with a high ohmic capacity, e.g. a smoke sensitive ionisation chamber (8) fed by a solar sensor (7) exposed to a radiation via an optical conductor and of which the output signal is sent back to the processing unit (E) by an electric transformer with a high ohmic capacity (T) and by an optical conductor (L2). This type of detection arrangement is preferably used for indicating the presence of a fire, smoke, a rise of temperature, or for the protection against house breaking, and it is particularly suitable for an area where there is a danger of explosion or electrical break-down.
IPC 1-7
IPC 8 full level
G08B 13/00 (2006.01); G08B 17/00 (2006.01); G08B 17/06 (2006.01); G01N 21/53 (2006.01); G08B 17/10 (2006.01); G08B 17/107 (2006.01); G08B 17/113 (2006.01); G08B 19/00 (2006.01); G08B 21/00 (2006.01); G08B 21/16 (2006.01); G08B 21/20 (2006.01); G08B 25/01 (2006.01)
CPC (source: EP US)
G08B 17/107 (2013.01 - EP US); G08B 17/113 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR GB LI NL SE
DOCDB simple family (publication)
EP 0032169 A1 19810722; BE 881812 A 19800616; CA 1150359 A 19830719; DE 3037636 A1 19810625; DE 3070861 D1 19850814; EP 0041952 A1 19811223; EP 0041952 B1 19850710; FR 2471636 A1 19810619; FR 2471636 B1 19831223; GB 2066451 A 19810708; GB 2066451 B 19841121; IT 1136224 B 19860827; IT 8012757 A0 19801216; JP H0241737 Y2 19901107; JP S56501779 A 19811203; JP S5694495 A 19810730; JP S63175297 U 19881114; NO 151801 B 19850225; NO 151801 C 19850605; NO 812765 L 19810814; SE 8008723 L 19810618; US 4379290 A 19830405; WO 8100636 A1 19810305; ZA 807269 B 19820127
DOCDB simple family (application)
EP 80106917 A 19801110; BE 199463 A 19800220; CA 365255 A 19801121; DE 3037636 A 19801004; DE 3070861 T 19800922; EP 8000102 W 19800922; EP 80901773 A 19800922; FR 8023505 A 19801104; GB 8037412 A 19801121; IT 1275780 A 19801216; JP 17732080 A 19801217; JP 50211180 A 19800922; JP 6169588 U 19880512; NO 812765 A 19810814; SE 8008723 A 19801211; US 20098580 A 19801027; ZA 807269 A 19801121