EP 0653737 A2 19950517 - A detection device.
Title (en)
A detection device.
Title (de)
Detektionsvorrichtung.
Title (fr)
Dispositif de détection.
Publication
Application
Priority
- ZA 938511 A 19931115
- ZA 939755 A 19931229
Abstract (en)
A detection device 10 includes a transmitter 14 which transmits a transmitted signal 16 of a first characteristic and, upon the occurrence of a predetermined event, causes a change in the characteristic of the transmitted signal 16. A receiver 18 is arranged remote from the transmitter 14, the receiver 18 being responsive to the transmitter 14. A discernible alarm 20 is connected to the receiver 18 to be activated by the receiver 18 when the receiver 18 receives the transmitted signal of changed characteristic or the receiver 18 fails to receive the transmitted signal 16. <IMAGE>
IPC 1-7
IPC 8 full level
G08B 21/08 (2006.01)
CPC (source: EP)
G08B 21/088 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0653737 A2 19950517; EP 0653737 A3 19960131; AU 7779794 A 19950525; CA 2134587 A1 19950516
DOCDB simple family (application)
EP 94307933 A 19941027; AU 7779794 A 19941111; CA 2134587 A 19941028