Electronic air pressure interlock switch

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11340569
APP PUB NO 20210141352A1
SERIAL NO

16677341

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Importance

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Abstract

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A device that includes a pressure sensor that adds dynamic pressure sensing capability to a furnace. In some examples the device may include a relay and other circuitry to replace the single-setpoint pressure switch used to sense the operation of an inducer fan. The pressure sensor may measure the pressure from the inducer fan and send a signal to the other circuitry, such as a microcontroller. The other circuitry may determine when the pressure from the inducer fan reaches a predetermined threshold and allow the main gas valve of the furnace to open. The other circuitry may be configured to set the pressure sensor to a variety of predetermined pressure thresholds, and thereby replace multiple pressure switches. In some examples, the other circuitry may record pressure values received from the pressure sensor over time and provide performance data, as well as other signals or indicators.

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Patent Owner(s)

Patent OwnerAddress
ADEMCO INC1985 DOUGLAS DRIVE N GOLDEN VALLEY MN 55422

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hazzard, Frederick Plymouth, US 29 152
Myre, Adam Minnetonka, US 14 22
Young, Gregory Blaine, US 65 1052

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