EP 0218341 A1 19870415 - Alarm for a blind.
Title (en)
Alarm for a blind.
Title (de)
Alarmeinrichtung an einer Jalousie.
Title (fr)
Appareil d'alarme sur une jalousie à lamelles.
Publication
Application
Priority
- GB 8521105 A 19850822
- GB 8522266 A 19850909
- GB 8522267 A 19850909
Abstract (en)
An alarm device, suitable for use with venetian blinds and other retractable blinds and curtains, comprises, secured together as as single unit, a piezoelectric motion sensor (9), an amplifier circuit (7) electrically connected to the piezoelectric sensor to amplify signals generated in the sensor, an audible alarm (8) electrically connected to the amplifier circuit for activation by the amplified signals, and a source of electrical power (10) for the circuit and the audible alarm. In one embodiment described, the unit is built upon a printed circuit board (6) and is of such shape and dimensions as to fit in the bottom rail (4) of a venetian blind.
IPC 1-7
IPC 8 full level
G08B 13/08 (2006.01)
CPC (source: EP)
G08B 13/08 (2013.01)
Citation (search report)
- [Y] GB 978873 A 19641223 - SUNVENE LTD
- [Y] DE 2805001 A1 19780824 - GRAAF JACOBUS WILLEM DE
- [AP] DE 8521684 U1 19850926
- [A] US 4160972 A 19790710 - LA MELL KENNETH, et al
- [A] GB 2145860 A 19850403 - REED INTERNATIONAL LTD
- [A] US 4232309 A 19801104 - DILLITZER MANFRED
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0218341 A1 19870415; GB 2180976 A 19870408; GB 8620256 D0 19861001
DOCDB simple family (application)
EP 86306382 A 19860819; GB 8620256 A 19860820