Sewer pipe gas exhaust filter apparatus
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United States of America Patent
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-
Jan 11, 2011
Issued Date -
N/A
app pub date -
Aug 15, 2006
filing date -
Aug 15, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A sewer pipe gas exhaust filter apparatus includes a sewer vent valve unit connected to a sewer pipe and including a valve member moved into and out of engagement with a valve seat by a float member, a gas filter unit connected to the sewer vent valve unit and including a gas filter medium, and a gas flow valve arrangement to cause gases from the sewer to flow through the filter medium while bypassing air drawn into the sewer pipe past the gas filter unit. The filter medium of the gas filter unit removes chemical components from air and gas exhausted from the sewer pipe, thereby improving the odor of such exhausted gases.
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International Classification(s)
Cited Art Landscape
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