Patents Assigned to MICROFILTER CO., LTD.
  • Publication number: 20240024802
    Abstract: Proposed is a water purification filter assembly including a filter main body, an inlet port through which feed water is supplied from the outside and an outlet port through which the purified feed water is discharged being formed in the filter main body, a water purification tank arranged on one side of the filter main body, the feed water purified in the filter main body being stored in the water purification tank, a first casing, at least one side of the water purification tank being accommodated in the first casing obliquely at a predetermined angle with respect to the ground, and a second casing perpendicularly coupled to one end portion of the first casing, the filter main body being accommodated in the second casing.
    Type: Application
    Filed: November 26, 2021
    Publication date: January 25, 2024
    Applicant: MICROFILTER CO., LTD
    Inventors: Whi Dong JOUNG, Pil Kang HWANG, Kyong Su LEE, Jin U JU, Min Kyu JUNG
  • Patent number: 11484817
    Abstract: Disclosed is a filter assembly capable of adjusting elimination of solid materials using a flow-variable bypass flow path. The filter assembly includes a filter portion (100) which includes a cover portion (110) formed on top to have a shape in which a bypass flow pipe (112) and a water discharge pipe (113) sequentially surrounds a perimeter of a vertically protruding original water inflow pipe (111) in a stepped structure and accommodates a filter body therein and a filter cartridge header (200) in which the cover portion (110) of the filter portion (100) is accommodated therebelow and which includes a bypass flow rate control unit (300) capable of adjusting an inflow amount of original water flowing into the bypass flow pipe (112).
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: November 1, 2022
    Assignee: Microfilter co., Ltd.
    Inventors: Hyun Woo Lee, Dae Yeon Cho, Bo Kyoung Chae, Dong Hyun Kim, Whi Dong Joung
  • Publication number: 20210299600
    Abstract: Provided are a filter unit which may easily replace a filter, and a refrigerator including the same. To this end, a filter unit according to the present disclosure includes a filter which purifies water, a filter head which is disposed on one end portion of the filter, and includes an inlet port which supplies raw water to the filter and is formed to protrude from one side thereof, and an outlet port which discharges pure water purified by the filter and is formed to protrude from the other side thereof, a filter housing which is formed with a filter accommodation space in which the filter is accommodated, a filter bracket which is coupled to the filter housing, and includes an inlet port coupling part to which the inlet port is coupled rotatably, and an outlet portion coupling part to which the outlet port is coupled rotatably, and a filter door which is coupled to the filter housing to open and close the filter accommodation space.
    Type: Application
    Filed: March 31, 2020
    Publication date: September 30, 2021
    Applicants: Microfilter CO., LTD, HISENSE RONSHEN (GUANGDONG) REFRIGERATOR CO., LTD.
    Inventors: Kyong Su Lee, Pil Kang Hwang, Min Kyu Jung
  • Patent number: 10173157
    Abstract: Disclosed herein is a filter assembly, and more particularly, to a filter assembly in which an uneven portion is formed on an inner wall of a hollow external housing and a filter fastening unit which includes a pressurized section pressurized by the uneven portion is formed around an inner cap which moves up and down along an inner surface of the external housing to firmly fasten a filter.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: January 8, 2019
    Assignees: MICROFILTER CO., LTD.
    Inventors: Joung Whi Dong, Jaeik Lee, Pilkang Hwang
  • Patent number: 10040005
    Abstract: A serial flow channel type filter cartridge includes a filter portion which includes a plurality of filter bodies and a plurality of filter housings corresponding to the plurality of filter bodies and independently accommodating the respective filter bodies and a cartridge header in which a top is formed in a structure in which a tap water pipe surrounds a perimeter of a purified water pipe, a plurality of filter accommodating pipes coupled with top ends of the plurality of filter housings which form the filter portion to seal an inside of the filter portion are formed at a bottom, and a serial structure type flow channel which allows tap water to sequentially flow into the plurality of filter accommodating pipes and then allows the water purified while sequentially passing through the plurality of filter bodies to be discharged through the purified water pipe is formed therein.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: August 7, 2018
    Assignees: MICROFILTER CO., LTD.
    Inventors: Joung Whi Dong, Jaeik Lee, Pilkang Hwang
  • Patent number: 10016703
    Abstract: A parallel flow channel type filter cartridge includes a filter portion which includes a plurality of filter bodies and a plurality of filter housings corresponding to the plurality of filter bodies and independently accommodating the respective filter bodies and a cartridge header in which a top is formed in a structure in which a tap water pipe surrounds a perimeter of a purified water pipe, a plurality of filter accommodating pipes coupled with top ends of the plurality of filter housings which form the filter portion to seal an inside of the filter portion are formed at a bottom, and a parallel structure type flow channel which allows tap water to flow into the plurality of filter accommodating pipes at the same time and then allows the water purified while passing through the plurality of filter bodies to be discharged through the purified water pipe is formed therein.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: July 10, 2018
    Assignees: MICROFILTER CO., LTD.
    Inventor: Joung Whi Dong
  • Patent number: 9993757
    Abstract: A filter cartridge assembly is provided. The filter cartridge assembly includes a filter head having an inlet and an outlet, an inner moving up or down in the filter head by an elastic unit, and a locking/unlocking part to control the inner to be stopped in a state that the inner moves up and to move down in state that the inner is stopped such that a filter cartridge is detachably installed in the filter head through the up-down movement of the inner, wherein, in order to allow the inner, which moves up or down in the filter head, to linearly move up only to separate the filter cartridge and to prevent the filter cartridge from being arbitrarily separated when the inner moves down. The inner includes an inner main body, and a holder including a plurality of wing pieces, in which the holder formed on a lower end of the inner main body are provided with the wing pieces which are spaced apart from each other to operate inward and outward, respectively, when the inner moves up or down.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: June 12, 2018
    Assignee: MICROFILTER Co., LTD.
    Inventors: WhiDong Joung, JaeIk Lee, PilKang Hwang
  • Patent number: 9885445
    Abstract: A locking-unlocking structure for guiding forward lifting of a lifting body lifted by repeating a pushing action is provided. The locking-unlocking structure includes an actuation guide unit provided at a center thereof therein with a stop groove to guide stop of a lifting body in a lifting state, having a lifting line and a falling line branching downward from the stop groove, and fixedly coupled to a fixing body, and an actuation unit comprising a lifting plate having a stop protrusion, which is mounted in the stop groove of the actuation guide unit or circulates along the lifting line and the falling line, and coupled to the lifting body movably left and right. The guide protrusion protrudes from the falling line of the actuation guide unit while being inclined downward along the falling line to block an entrance so that the stop protrusion of the lifting plate is prevented from entering the falling line when the lifting plate of the actuation unit is lifted.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: February 6, 2018
    Assignee: MICROFILTER Co., Ltd.
    Inventors: WhiDong Joung, Jaelk Lee, PilKang Hwang
  • Patent number: 9863575
    Abstract: A locking-unlocking structure for stopping a lifting body, which is vertically lifted and falls through repetition of a pushing action, in a lifting state and for releasing a stopping state of the lifting body is provided. The locking-unlocking structure includes a lifting body, which is exactly lifted immediately upward, or falls without being fluctuated left and right and, to control lifting and falling operations of the lifting body, an actuation unit is mounted in the lifting body movably left and right, and an actuation guide unit, which guides an operation of the actuation unit, is fixedly mounted in a fixing body, and the lifting body is provided therein with a rotation groove allowing the actuation unit to be movable left and right when the lifting body is lifted or falls, and a rotation shaft rotatably coupled to the rotation groove is provided at one side of a lifting plate.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: January 9, 2018
    Assignee: MICROFILTER Co., Ltd.
    Inventors: WhiDong Joung, Jaelk Lee, PilKang Hwang
  • Publication number: 20100000919
    Abstract: A water purification filter assembly is disclosed. The water purification filter assembly of the present invention includes a manifold, which is provided in a water purifier, and a circular cap, which is provided under the manifold and has a slide slot, with a protrusion provided under the circular cap. The filter assembly further includes a filter cartridge, which has a head part coupled to the circular cap and a filter part provided with a filter therein. The filter assembly further includes a fastening member, which fastens the head part of the filter cartridge to the circular cap, and a guide groove, into which the protrusion is inserted, and which is formed in the upper surface of the filter part of the filter cartridge. Therefore, processes of coupling and removing the filter cartridge are made easy and convenient.
    Type: Application
    Filed: December 18, 2006
    Publication date: January 7, 2010
    Applicant: MICROFILTER CO., LTD.
    Inventor: Min-won Kim
  • Publication number: 20090200217
    Abstract: A water purification filter assembly is disclosed. The water purification filter assembly of the present invention includes a manifold, which is provided in a water purifier, and a circular cap, which is provided under the manifold and has a slide slot, with a protrusion provided under the circular cap. The filter assembly further includes a filter cartridge which has a head part-coupled to the circular cap and has a filter part provided with a filter therein. The filter assembly further includes a fastening member, which fastens the head part of the filter cartridge to the circular cap, and a guide groove, into which the protrusion is inserted. The fastening member is formed in the upper surface of the filter part of the filter cartridge. Therefore, processes of coupling and removing the filter cartridge are made easy and convenient.
    Type: Application
    Filed: December 18, 2006
    Publication date: August 13, 2009
    Applicant: MICROFILTER CO., LTD.
    Inventor: Min-won Kim
  • Publication number: 20080197063
    Abstract: A water purifier includes a head which is defined with a guide passage in communication with an inlet port. an outlet port, and a filter body which purifies the fluid flowing therein through the guide passage of the head and transfers purified fluid to the outlet port of the head. The filter of the present invention includes a fluid flow interrupter which is disposed in the guide passage to controllably open and close the guide passage by spring force when the head and the filter body are coupled to and de-coupled from each other. There is at least one through-hole which is defined on an upper end of the filter body so that fluid having passed through the guide passage can flow through the through-hole into the filter body.
    Type: Application
    Filed: December 16, 2005
    Publication date: August 21, 2008
    Applicant: Microfilter Co., Ltd.
    Inventor: Min-won Kim
  • Patent number: D768813
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: October 11, 2016
    Assignees: MICROFILTER CO., LTD.
    Inventors: Joung Whi Dong, Jaeik Lee, Pilkang Hwang
  • Patent number: D768814
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: October 11, 2016
    Assignees: MICROFILTER CO., LTD.
    Inventors: Joung Whi Dong, Jaeik Lee, Pilkang Hwang
  • Patent number: D776237
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: January 10, 2017
    Assignees: MICROFILTER CO., LTD.
    Inventors: Joung Whi Dong, Jaeik Lee, Pilkang Hwang
  • Patent number: D895014
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: September 1, 2020
    Assignee: MICROFILTER CO., LTD.
    Inventors: WhiDong Joung, PilKang Hwang, JinU Ju, JaeIk Lee, MinWon Kim
  • Patent number: D930787
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: September 14, 2021
    Assignees: MICROFILTER CO., LTD, HISENSE RONSHEN (GUANGDONG) REFRIGERATOR CO., LTD.
    Inventors: Kyong Su Lee, Pil Kang Hwang, Min Kyu Jung
  • Patent number: D994835
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: August 8, 2023
    Assignees: Microfilter CO., LTD, HISENSE RONSHEN (GUANGDONG) REFRIGERATOR CO., LTD.
    Inventors: Kyong Su Lee, Pil Kang Hwang, Min Kyu Jung