Light scattering type smoke detector

Details Light scattering type smoke detector Light scattering type smoke detector

2004-11-17

2010-06-29

Bugg, George A (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S628000, C340S619000, C340S584000, C250S216000, C250S573000, C250S574000, C250S578100, C356S438000, C356S442000, C356S448000

Reexamination Certificate

active

07746239

ABSTRACT:
A light scattering type smoke sensor includes a sensor body, light-emitter for emitting light toward an open smoke-sensing space and outputting a light-received signal according to the amount of scattering light received, and a fire judging unit for judging whether fire occurs or not on the basis of the amount of received light determined on the basis of the outputted light-received signal.

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