EP 0346152 A2 19891213 - Smoke detector devices and detector circuit.
Title (en)
Smoke detector devices and detector circuit.
Title (de)
Rauchfühler und Schaltungsanordnung.
Title (fr)
Détecteur de fumée et circuit détecteur.
Publication
Application
Priority
GB 8813811 A 19880610
Abstract (en)
A smoke detector device comprises a housing (30) adapted to be mounted below an existing ceiling rose fitting (32) and to be clamped to an electrical flex (38) passing therethrough. The housing (30) encloses a smoke detector circuit formed on a printed circuit board (62), a battery (48) and an alarm sounder (50). The device is intended particularly for use in domestic environment, and is intended unobtrusive and inexpensive. An alternative embodiment includes a housing adapted to replace existing ceiling rose fittings; A novel photoelectric-type detector circuit, incorporating an integrated circuit and high intensity light emitting diode, is also described, which again is intended to be compact and inexpensive.
IPC 1-7
IPC 8 full level
G08B 17/107 (2006.01)
CPC (source: EP)
G08B 17/107 (2013.01); G08B 17/113 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0346152 A2 19891213; EP 0346152 A3 19901003; GB 2221074 A 19900124; GB 8813811 D0 19880713; GB 8913478 D0 19890802
DOCDB simple family (application)
EP 89305902 A 19890612; GB 8813811 A 19880610; GB 8913478 A 19890612