Bacteria preventive water holding tank construction for electric water heaters
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United States of America Patent
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Sep 15, 2020
Grant Date -
May 2, 2019
app pub date -
Nov 2, 2017
filing date -
Nov 2, 2017
priority date (Note) -
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Abstract
A water holding tank for electric water heaters is described and particularly an improvement to the bottom end construction of the tank to prevent bacteria proliferation and the elimination of the cavitated circumferential area where sediments deposit to form a culture bed for bacteria to proliferate. Instead of modifying the shape of the bottom wall the improvement is a simple solution in that a filler material is set in at least a lowermost portion, and preferably a major portion, of the cavitated circumferential area to isolate that area from the interior of the water holding tank and form smooth flat surface areas which are planar to cause sediments to disperse and not form beds for bacteria to proliferate.
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