NORMALLY-OPEN BACKWATER VALVE WITH SUSPENDED FLAPPER
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United States of America Patent
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Issued Date -
Feb 23, 2017
app pub date -
Jun 28, 2016
filing date -
Aug 19, 2015
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Abstract
A normally-open backwater valve fluidly coupled between one or more discharge conduits of a building, or other location, and a sewage, or drainage, system includes a valve body having a horizontally-oriented fluid flow passageway, a flapper pivotably moveable therein and at least one spacer configured to position the flapper above the lower interior surface of the valve body in the passageway when the flapper is in an open position.
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