The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2026
Filed:
Jun. 16, 2022
Coway Co., Ltd., Gongju-si, KR;
COWAY CO., LTD., Gongju-si, KR;
Abstract
A water purifier comprises: an RO filter comprising a non-filtering unit, a filtering unit for discharging purified water, and a reverse osmosis membrane for partitioning the non-filtering unit and the filtering unit and for purifying the raw water; a raw water storage unit; a purified water storage unit; a water storage tank comprising a separator membrane made of a non-permeable material so as to independently partition the raw water storage unit and the purified water storage unit and to have elasticity, the water storage tank being configured such that, when the raw water storage unit expands, the purified water storage unit contracts, and when the purified water storage unit expands, the raw water storage unit contracts; a flow channel for providing passages along which the raw water and the purified water flow; a valve unit comprising multiple valve modules; and a control device for controlling valve modules.