<p>An alarm device is disclosed for use with a fire detector which emits a visual or audible signal having recognisable characteristics. The signal is picked up by the alarm device which includes discriminating circuitry can recognise the signal. The device further includes a sound bomb which is activated upon a recognised signal being picked up. In a fire alarm installation there can be a series of alarm devices each of which recognises the signal of another alarm device whereby a number of alarm devices are activated in sequence.</p>
申请公布号
WO2005069238(A1)
申请公布日期
2005.07.28
申请号
WO2004ZA00161
申请日期
2004.12.21
申请人
RUNCIMAN, DUNSTAN, WALTER;ATTWELL, COLIN, WILLIAM, PETER
发明人
RUNCIMAN, DUNSTAN, WALTER;ATTWELL, COLIN, WILLIAM, PETER