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公开(公告)号：US20240278154A1
公开(公告)日：2024-08-22
申请号：US18568872
申请日：2022-06-16
Applicant: COWAY CO., LTD.
Inventor： Hyoungmin MOON , Doo Won HAN , Sung Han YUN , Won Tae KIM
CPC classification number: B01D35/1573 , B01D35/16 , B01D37/04 , B01D61/025 , B01D61/12 , B01D65/02
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.
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公开(公告)号：US20240076215A1
公开(公告)日：2024-03-07
申请号：US18457508
申请日：2023-08-29
Applicant: COWAY Co., Ltd.
Inventor： Sang-Young LEE , Min-Kyoon AHN , Won Tae KIM , Mo Young GU , Dae Sik KANG
IPC: C02F1/68
CPC classification number: C02F1/687 , C02F1/681 , C02F2209/06
Abstract: A filter for controlling a pH of purified water is disclosed. The pH-controlling filter according to an aspect of the present disclosure may include a water permeable filter having a hollow formed in a center of a cross-section from one end to the other end; a lower stopper closing a lower end of the water permeable filter, a filling unit inserted into the hollow of the water permeable filter to form an inner space, the filling unit having an inlet through which the purified water passing through the water permeable filter flows into the inner space and an outlet through which the purified water passing through the inner space flows out; and control particles filled in the inner space of the filling unit to adjust a pH of the purified water passing through the inner space of the filling unit and comprising OH group-generating particles configured to supplement the purified water passing through the inner space with OH groups.
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公开(公告)号：US20180236441A1
公开(公告)日：2018-08-23
申请号：US15752150
申请日：2016-07-04
Applicant: COWAY CO., LTD.
Inventor： Hyun Kang LEE , Sung Hee LEE , Won Tae KIM
CPC classification number: B01J49/75 , B01D35/157 , B01D35/30 , B01D41/02 , B01J49/50 , C02F1/42 , C02F2001/425 , C02F2301/063 , C02F2303/16
Abstract: The present invention provides a semi-automatic pressure type water softener including: an ionic resin tank (100) provided with an ionic resin; a regeneration vessel (200), into which a regenerant is introduced and which generates reclaimed water filled with the ionic resin; a drain valve (293) provided in the regeneration vessel (200) and configured to discharge residual water to the outside; a water inlet part (400) configured to selectively supply raw water to the ionic resin tank (100) and the regeneration vessel (200); and a timer/ceramic disk conversion valve (300) configured to select any one of a water softening mode, a raw water mode, and a regeneration mode to convert a passage between any two of the water inlet part (400), the ionic resin tank (100), and the regeneration tank (200), wherein the water softener is in the regeneration mode, any one of a first mode and a second mode is selected according to a preset method, wherein the first mode is operated for a preset period of time by the timer/ceramic disk conversion valve 300 such that the raw water is supplied to the regeneration vessel (200) to generate reclaimed water, and wherein in the second mode, the drain valve (293) is opened.
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