Global Patent Index - EP 0980056 A1

EP 0980056 A1 2000-02-16 - Alarm system

Title (en)

Alarm system

Title (de)

Alarmsystem

Title (fr)

Système d'alarme

Publication

EP 0980056 A1 (EN)

Application

EP 98306414 A

Priority

  • EP 98306414 A
  • GB 9709207 A

Abstract (en)

A fire alarm system comprises a warning device 18 and a control panel 10 for providing an alarm signal to trigger the sounder device 18 when a fire is detected. The control panel 10 comprises a power supply 12 which incorporates a rechargeable battery 13, the normal output voltage of the power supply 12 being greater than the voltage at which the output of the sounder device 18 is at or above a predetermined acceptable level. Thus, in the event that the sounder device 18 is triggered before or during a power failure, the output of the sounder device 18 will remain at or above the predetermined acceptable level for a considerable length of time, until the battery becomes exhausted. <IMAGE>

IPC 1-7 (main, further and additional classification)

G08B 3/10

IPC 8 full level (invention and additional information)

G08B 29/18 (2006.01)

CPC (invention and additional information)

G08B 29/181 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

GB 2325074 A 19981111; GB 9709207 D0 19970625; EP 0980056 A1 20000216

INPADOC legal status


2001-07-05 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

- Ref Legal Event Code: 8566

2001-05-30 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20000816

2000-10-25 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

2000-02-16 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-02-16 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI