EP 0391566 A1 19901010 - Alarm systems.
Title (en)
Alarm systems.
Title (de)
Alarmsystem.
Title (fr)
Système d'alarme.
Publication
Application
Priority
GB 8907830 A 19890407
Abstract (en)
An alarm system comprising at least one audible alarm (25), at least one detector (15), at least one control unit (12) which communicates with the alarm (25) in a remote, wireless manner, and is arranged to be hand held. There is at least one power connection device (11) for supplying power to the alarm (25) the power connection device (11) including a step down transformer (27) which enables the alarm and the power connection device to be interconnected by wiring (26) which carries low voltage and can therefore be installed safely by an unskilled person.
IPC 1-7
IPC 8 full level
G08B 25/10 (2006.01)
CPC (source: EP)
G08B 25/10 (2013.01)
Citation (search report)
- [X] DE 2913266 A1 19801016 - ECOTRON GES FUER ELEKTRONISCHE
- [A] US 4737770 A 19880412 - BRUNIUS ROBERT E [US], et al
- [A] US 4772876 A 19880920 - LAUD TIMOTHY G [US]
- [A] GB 2186404 A 19870812 - NOTIFIER CO
- [AP] US 4825457 A 19890425 - LEBOWITZ MAYER M [US]
- [A] US 4581606 A 19860408 - MALLORY JOHN [CA]
- [A] FUNKSCHAU
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 90302919 A 19900319; GB 8907830 A 19890407