公开(公告)号：US12234162B2

公开(公告)日：2025-02-25

申请号：US17291857

申请日：2019-09-30

Applicant: UNITIKA LTD.

Inventor： Shinji Taniguchi ,  Norihiro Naito

IPC: C02F1/28 ,  B01D39/20 ,  B01J20/20 ,  B01J20/28

Abstract: A water purification cartridge includes a casing with a tubular shape that has an inflow portion for raw water to flow in and an outflow portion for purified water to flow out, and a filter member for filtering the raw water, the filter member being accommodating within the casing. The filter member is formed to have a cylindrical shape having a hollow portion, and has a first face and a second face at respective ends in an axial direction. The casing has a first cover portion, a second cover portion, and a side wall portion. The first cover portion covers the first face. The second cover covers the second face. The side wall portion covers an outer circumferential face of the filter member. In the first cover portion, a first contact portion is formed that annularly comes into contact with the first face and that press the filter member in the axial direction to elastically deform the filter member. In the second cover portion, a second contact portion is formed that annularly comes into contact with the second face and that press the filter member in the axial direction to elastically deform the filter member.