Backdraft detector

Details Backdraft detector Backdraft detector

2006-08-23

2009-08-11

Lee, Benjamin C (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S584000, C340S870030

Reexamination Certificate

active

07573392

ABSTRACT:
A backdraft detector incorporates at least one oxygen sensor in combination with a flow sensor. Both sensors are coupled to control circuitry which evaluates sensed oxygen levels of a flowing sample being monitored by the flow sensor.

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patent: 2004/0035461 (2004-02-01), Susko

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