Flame detection in a fuel fired appliance

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United States of America Patent

PATENT NO 9388984
APP PUB NO 20110250546A1
SERIAL NO

12757543

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A control system for a fuel-fired appliance and methods of operating are disclosed. When an electrical characteristic of a flame detector fails to cross a threshold level during an ignition attempt and when the electrical characteristic of the flame detector changes by a predetermined amount, the control system may activate an indicator indicating a problem with the flame detector (e.g. dirty, misaligned, or otherwise unable to properly detect the flame).

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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
Anderson, Peter St. Paul, US 60 1857

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