Filtration covering apparatus

Details Filtration covering apparatus Filtration covering apparatus

2006-03-28

2006-03-28

Prince, Fred G. (Department: 1724)

Liquid purification or separation

Processes

Separating

C210S167150, C210S193000, C210S416200

Reexamination Certificate

active

07018547

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: 6196395 (2001-03-01), Drori
patent: 2020187 (1979-11-01), None

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