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:
Dec. 29, 2020
Filed:
Jul. 04, 2017
Coway Co., Ltd., Chungcheongnam-do, KR;
Jae-Hoon Kim, Seoul, KR;
Young-Jae Lee, Seoul, KR;
Su-Yong Park, Seoul, KR;
Sang-Kyun Lee, Seoul, KR;
Jung-Hun Lee, Seoul, KR;
Hyun-Woo Lee, Seoul, KR;
Ju-Hyuk Eom, Seoul, KR;
Min-Sub Song, Seoul, KR;
Sung-Han Yun, Seoul, KR;
Dae-Sik Kang, Seoul, KR;
Si-Jun Park, Seoul, KR;
Abstract
A water purifier comprising: a filter unit comprising at least one filter filtering water to generate purified water; a flow rate sensor measuring a flow rate of the water; a concentrated water channel discharging concentrated water, having been filtered by the filter unit; an extraction unit extracting the purified water; a flow rate control valve controlling a flow rate of purified water; an opening and closing degree measurement unit, measuring a degree of opening and closing of the flow rate control valve; a concentrated water ratio calculation unit, calculating a ratio between purified water and concentrated water, according to the degree of opening and closing of the flow rate control valve; and a controller, using the flow rate of water and the calculated ratio between purified water and concentrated water, to calculate amounts of water used, integrating the calculated amounts of water, and calculating a lifespan (remaining life) of the filter.