Highly sensitive smoke detector

Details Highly sensitive smoke detector Highly sensitive smoke detector

1988-12-16

1990-04-03

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specified housing

340628, G08B 1710

Patent

active

049144251

ABSTRACT:
An ionization smoke detector of the present invention comprises an outer electrode having a plurality of smoke inlets formed on a side wall thereof, an outer cover and a partition wall having a plurality of smoke inlets disposed between the outer electrode and the outer cover to form a triple wall structure. The smoke inlets formed on the outer cover, the partition wall and the outer electrode are staggered from each other. Air stream hitting against the detector is attenuated by the triple wall structure and generally half of the air flow is allowed to pass between the outer cover and the outer electrode and between the partition wall and the outer electrode, flowing out of the detector and the remaining half of the air flow is led into the detector through the smoke inlets.

REFERENCES:
patent: 4328424 (1982-05-01), O'Connor
patent: 4623878 (1986-11-01), Schoenwetter

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