Patent ID: 6641719
Filing Date: 2003-11-04
Classification: B67D,C02F

Abstract:
A water purifier which can be connected to a filler port of a bottle container and also be readily removed, comprisesa filter case; a filter medium fixed inside the filter case; a joint part extending from the upper side of the filter case and mounted in the filler port of the bottle container; a vent tube extending from the outer surface of the bottle container to the wall surface of the joint part, also extending from the filler port to the inside of the bottle container; and an airflow control means for controlling air flowing into said bottle, the airflow control means being provided on the vent tube and further comprising either: a supplementary tube made of an elastic material which can enlarge and reduce an air passage of said vent tube; or an air flow regulating valve which can be engaged with an edge of an opening of said vent tube.