US Patent 7018547 Filtration covering apparatus
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Patent abstract
A filtration covering apparatus for use covering diatomaceous earth filter grids for swimming pools. The filtration covering apparatus has a replaceable cover having two closed sides, a bottom opening, and a top opening. The replaceable cover is curved shaped to accommodate the filter grid. The filter grid fits within the top opening of the replaceable cover. The top opening includes a horizontal top edge having a zipper mechanism for securing the top opening closed for containing the filter grid therein.
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Patent Inventor Names
Robert Silva0
Date of Patent
March 28, 2006
0Patent Application Number
109925060
Date Filed
November 18, 2004
0Patent Primary Examiner
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US Patent 7018547 Filtration covering apparatus
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