Patent ID: 7575678
Filing Date: 2009-08-18
Classification: B01D,C02F

Abstract:
1. A portable water purification device, comprising: a base comprising a channel; a first sleeve fixed on the base, and comprising a first peripheral wall around an axis to define a first axial hole; a tube secured on the base and held in the first axial hole based on the axis to define a penetrated hole communicating with the channel, and comprising an encircled wall and multiple bores defined on the encircled wall and communicating with the penetrated hole; a filtering unit comprising multiple filtering bags mounted on the tube wherein each of the filtering bags comprises an intake communicating with the bores; and at least one second sleeve mounted on an external surface of the first sleeve to be adjusted between a first position away from the base and a second position adjacent to the base, and comprising a second peripheral wall around the axis to define a second axial hole wherein the first axial hole communicates with the second axial hole to define a containing room when the at least one second sleeve is located on the first position.