公开(公告)号：US20220009797A1

公开(公告)日：2022-01-13

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.

公开(公告)号：US20230249985A1

公开(公告)日：2023-08-10

申请号：US18012372

申请日：2021-06-09

Applicant: UNITIKA LTD.

Inventor： Shinji TANIGUCHI

IPC: C02F1/00

CPC classification number: C02F1/003 ,  C02F2201/006 ,  C02F2307/02 ,  C02F1/28

Abstract: The present invention is a water purifier cartridge to be attached to a container including a water storage portion having an opening at an upper portion thereof, and a lid that has an outlet for discharging water stored in the water storage portion and is configured to close the opening of the water storage portion, the cartridge including: a support including a circumferential wall portion formed in a cylindrical shape and a closing portion that closes one end portion in an axial direction of the circumferential wall portion and in which an air hole is formed, another end portion in the axial direction being open; and a filter member that is supported by the support so as to extend along the circumferential wall portion.