Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1995-12-11
1997-09-23
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
Specific condition
340630, 361756, 361758, 250564, 250574, G08B 1710
Patent
active
056709471
ABSTRACT:
In a light scattering smoke sensor of the present invention, a first diaphragm portion is disposed just aheat of a light receiving device, and a second diaphragm portion is disposed ahead of the first diaphragm portion. A gap between the first and second diaphragm portion is a smoke introducing portion which introduces smoke to a smoke detecting space via a gap between labyrinth members and the second diaphragm portion.
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Edwards, Jr. Timothy
Hochiki Corporation
Hofsass Jeffery
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