Strainer for a bilge pump
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United States of America Patent
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Sep 1, 2015
Grant Date -
Feb 2, 2012
app pub date -
Mar 31, 2010
filing date -
Mar 31, 2009
priority date (Note) -
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Abstract
A straining device for a drainage pump, the straining device comprising a body defining an inner chamber; at least one straining element by which liquid may enter the chamber; and at least one outlet by which liquid may leave the chamber. The straining device further includes a liquid level sensor arranged to detect the level of a liquid in which said straining device is located during use and, upon determining that said liquid level exceeds a threshold, to cause an activation signal to be sent to said pump. The liquid level sensor comprises non-contact sensing means such as an electric field sensor. The sensor is located at the top of the straining device and arranged to project its sensing field upwardly.
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