EP 0077327 A4 19840928 - ALARM DEVICE.
Title (en)
ALARM DEVICE.
Title (de)
ALARMANLAGE.
Title (fr)
DISPOSITIF D'ALARME.
Publication
Application
Priority
US 8100573 W 19810428
Abstract (en)
[origin: WO8203936A1] An alarm device which includes a housing (12), batteries (28, 29, 30) in the housing (12), conductors (41, 42), and a light source (34) and audio signal (32) in parallel to one another and connected to the batteries (28, 29, 30) and switch (50) between the light source (34) and the audio signal (32), in series therewith, and normally opened, yet adapted to be closed by movement of the switch (50) to cause, optionally, a light (34) or an audio signal (32) and, alternatively, an attachment (70) for the housing to provide an alternative circuit with switches (86, 93) in it which is activated by heat, or by closing to a normal position upon release under predetermined conditions to override the signal and to cause an audio signal (32) to warn a person that an intruder has entered a room or that the heat within a given location exceeds a certain predetermined amount.
IPC 1-7
IPC 8 full level
G08B 13/08 (2006.01); G08B 17/06 (2006.01)
CPC (source: EP)
G08B 13/08 (2013.01); G08B 17/06 (2013.01)
Citation (search report)
- [Y] FR 2053462 A5 19710416 - BRAUN AG
- [Y] FR 2339198 A1 19770819 - JAZ SA [FR]
- [Y] US 4225857 A 19800930 - FRANK KARL F
- [A] GB 2042230 A 19800917 - APPLIANCE DESIGN PROBE INC
- [A] US 3248723 A 19660426 - MIETHE KARL H
Designated contracting state (EPC)
AT CH DE FR GB LI LU NL SE
DOCDB simple family (publication)
WO 8203936 A1 19821111; EP 0077327 A1 19830427; EP 0077327 A4 19840928
DOCDB simple family (application)
US 8100573 W 19810428; EP 81901635 A 19810428