Vent assembly for combustion gases generated by an appliance
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United States of America Patent
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Jul 20, 2010
Grant Date -
Sep 6, 2007
app pub date -
Mar 2, 2006
filing date -
Mar 2, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
The combination of a vent assembly with a conduit assembly bounding a flow space into which discharged combustion gases are exhausted. The conduit assembly has a first conduit length in which: a) combustion gases are communicated in a first direction in a first path between the flue outlet and a vent outlet; and b) backflow is communicated in the first path in a direction opposite to the first direction. The conduit assembly has a draft control assembly, with a conduit portion defining a flow passage in which backflow is diverted out of the first path. The draft control assembly further has a flow guide assembly that intercepts and guidingly diverts the backflow into the conduit portion to be exhausted.
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