Importance

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Abstract

A device for filtering and purifying tap water in combination with a conventional water cooler and bottle includes a generally circular annular flange having an outer diameter sufficient to prevent insertion of the flange into the water-receiving chamber of a conventional water cooler, and having an inner diameter dimensioned to accept a water bottle for use in the water cooler, and having a rigidity capable of supporting the water bottle. Depending from the flange, a generally cylindrical canister of water-impervious material, having an outer diameter and length is dimensioned to fit within the water-receiving chamber. A lower retaining means, capable of passing water while retaining a filter medium, is positioned within the canister at its lower end. A silver-impregnated activated carbon filter medium, capable of removing chlorine and absorbable organic chemicals from potable water, positioned on the upper surface of the lower retaining element. An upper retaining element capable of passing water and excluding particulate matter, and capable of retaining the filter medium, is positioned on the upper surface of the filter medium. The distance between the upper perforated panel and the flange, and the inner diameter of the canister, are selected to provide for a flow rate of at least 0.03 oz/sec through the filter device when the filter device is inserted into a water cooler and the neck of a water-containing water bottle placed inverted in the top end of the device.

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First Claim