Patent ID: 6193886
Filing Date: 2001-02-27
Classification: C02F

Abstract:
A ceramic filter assembly for use with a portable bottle having a circular cross-section neck or open end to simultaneously cap the neck or open end, and filter liquid moving out of the bottle through the neck or open end, comprising:a self-supporting ceramic filtering material element, having a pore size of about 0.55 microns or less, through which water may pass at a rate of 2 ml/sec. or more with an initial head pressure of no more than about 24 inches of water, said element having first and second ends and an open volume of between 40-85%;a cap element operatively connected to said ceramic filtering material element first end, and having a liquid passage therein, so that water flows through said ceramic filtering element and is filtered, and then flows through said liquid passage; andsaid cap element having surface manifestations that are cooperable with a portable bottle neck or open end to releasably connect the cap element to a portable bottle neck or open end, so that water may be dispensed from a bottle by passing from within a portable bottle through said ceramic filtering material element, and then through said cap element liquid passage, and out the portable bottle.