Ambient condition detector with multi-function test

Details Ambient condition detector with multi-function test Ambient condition detector with multi-function test

2006-04-18

2006-04-18

Mullen, Jr., Thomas J. (Department: 2632)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S628000, C340S629000, C340S607000, C340S584000, C340S630000, C340S632000, C340S514000

Reexamination Certificate

active

07030766

ABSTRACT:
A device with a multi-function test feature for assessing or directing multiple sensor functions is provided for monitoring and interrogating air flow through Heating/Ventilation/Air-conditioning (HVAC)-type ducts for changes to ambient conditions such as smoke, heat, gas, and/or relative humidity.

REFERENCES:
patent: 4702412 (1987-10-01), Zelczer et al.
patent: 5898369 (1999-04-01), Godwin
patent: 5905438 (1999-05-01), Weiss et al.
patent: 5960381 (1999-09-01), Singers et al.
patent: 6239697 (2001-05-01), Murao
patent: 6313744 (2001-11-01), Capowski et al.
patent: 6426703 (2002-07-01), Johnston et al.

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