Global patent index - EP 1037183 A2

EP 1037183 A2 2000-09-20 - A gas sensing alarm device

Title (en)

A gas sensing alarm device

Title (de)

Gasnachweisalarmvorrichtung

Title (fr)

Dispositif d'alarme pour la détection de gaz

Publication

EP 1037183 A2 (EN)

Application

EP 00650013 A

Priority

  • IE 990186 A
  • IE 990368 A

Abstract (en)

An alarm device (1) has a circuit (10) with a microcontroller (11) which activates a green LED (4) to indicate normal operation, a yellow LED (6) to indicate if there is a fault, and a red LED (5) to indicate an alert arising from carbon monoxide concentration exceeding a volt. If the user presses a test/hush button (3) the microcontroller indicates the peak concentration since a memory was last reset. Continuing to press the button causes the memory to be reset. This provides peace of mind to the user. <IMAGE>

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

G08B 21/00

IPC 8 full level (invention and additional information)

G08B 21/12 (2006.01); G08B 21/14 (2006.01)

CPC (invention and additional information)

G08B 21/12 (2013.01); G08B 21/14 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

EP 1037183 A2 20000920; EP 1037183 A3 20030409; EP 1037183 B1 20050413; AT 293270 T 20050415; DE 60019362 D1 20050519

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