Patents by Inventor Choon Myun Chung

Choon Myun Chung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7257859
    Abstract: A cleaner having a brush includes a suction motor mounted in a main body, and generating a suction force; a filter for collecting dust or filth sucked by the suction force generated at the suction motor; a suction head connected with the filter by a suction pipe, and having an inlet through which dust and filth on a floor are sucked; and a brush rotatably mounted at an inside of the suction head. The inlet is partitioned off into a first section and a second section by a belt cover for protecting a belt winding around the brush, and a flow passage unit is formed at the brush so that air can flow between the first and second sections. Accordingly, air can flow smoothly at a portion, which is blocked by the belt cover, and thus cleaning performance can be improved.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: August 21, 2007
    Assignee: LG Electronics Inc.
    Inventors: Hyeun Sik Nam, Yong Woo Lee, Ho-Seon Rew, Choon Myun Chung
  • Patent number: 7231687
    Abstract: In a vacuum cleaner, by including a casing having a certain internal space; a suction force generating unit installed in the casing to generate a suction force and discharge sucked air; a head unit combined with the casing to suck impurities on the bottom with air by a suction force of the suction force generating unit or discharge air sucked from the outside; a filter unit for filtering off impurities in air sucked through the head unit or ambient air received from the outside; a flow channel switch connected with the head unit, the filter unit and the suction force generating unit so as to selectively switch a flow channel in order to guide air including impurities sucked through the head unit by the suction force of the suction force generating unit or make ambient air introduced in the flow channel switch flow to the head unit; and plural pipes for providing passages of air flowing in the head unit, the filter unit, the suction force generating unit and the flow channel switch, it is possible to perform n
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: June 19, 2007
    Assignee: LG Electronics Inc.
    Inventors: Ho-Seon Rew, Yong-Woo Lee, Hyeon-Sik Nam, Choon-Myun Chung
  • Publication number: 20070130722
    Abstract: A steam generator is provided that includes an external case having an opening that allows an internal space to communicate with an external environment. Additionally, the steam generator may be provided with a supplier that supplies water to the internal space, a heater provided to the opening to generate steam, an outlet pipe having a first side that communicates with the external environment to discharge steam, and a steam discharge controller provided to a second side of the outlet pipe to open/close the outlet pipe according to a presence or absence of a discharge of the steam.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 14, 2007
    Applicant: LG Electronics Inc.
    Inventors: Choon Myun Chung, Jeong Ho Lee, Hyoung Jun Kim, Sung Park
  • Publication number: 20070130720
    Abstract: A vacuum cleaner and an intake port unit thereof are disclosed, by which a steam cleaning can be conducted together with a vacuum cleaning. The intake port unit includes a housing. A vacuum intake passage is provided within the housing for passage of air sucked in from the exterior of the housing, and a steam generator is provided within the housing to generate steam. A steam discharge passage is provided within the housing for passage of steam discharged to the exterior of the housing. The steam discharge passage is partitioned from the vacuum intake passage.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 14, 2007
    Applicant: LG ELECTRONICS INC.
    Inventors: Hyoung Jun KIM, Jay Ho CHOI, Sung Il PARK, Choon Myun CHUNG
  • Publication number: 20070124891
    Abstract: A cleaner is provided that includes a head having a base, which is configured to face a surface to be cleaned, and an intermediate connector detachably coupled to a bottom of the base at an upper surface of the intermediate connector. Further, the intermediate connector supports a cleaning member that is detachably coupled to a lower surface of the intermediate connector. Additionally, the cleaner also includes a first coupler to detachably couple the intermediate connector to the bottom of the base.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 7, 2007
    Applicant: LG ELECTRONICS INC.
    Inventors: Jeong Ho LEE, Hyoung Jun KIM, Sung IL PARK, Choon Myun CHUNG
  • Patent number: 7043944
    Abstract: A drum type washing and drying apparatus comprising: a washing unit including a tub receiving a water for washing laundry and a first drum rotatably installed inside the tub; a drying unit including a second drum rotatably installed in the vicinity of the washing unit; a first airflow duct of which one end is connected to the inside of the tub and the other end is connected to the second drum; a blowing fan installed at the first airflow duct for introducing an air inside the tub into the second drum through the first airflow duct; a heating means for heating the air passing through the first airflow duct; and a second airflow duct of which one end is connected to the second drum and the other end is connected to the tub so that the air inside the second drum is introduced into the tub therethrough, thereby improving drying performance thereof and reducing fabrication costs and noise.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: May 16, 2006
    Assignee: LG Electronics Inc.
    Inventors: Young-Hwan Park, Kyung-Seop Hong, Choon-Myun Chung
  • Patent number: 7021088
    Abstract: An aeration apparatus for a combination drier and washer comprises an air circulation duct connected from one portion of a tub to the other portion for circulating air in the tub; an aeration tube connected from the air circulation duct to outside of the case for introducing exterior air; and an opening/closing unit provided at a spot where the air circulation duct and the aeration tube meet for opening and closing the aeration tube, wherein the air circulation duct is connected to a condensing water supply tube for supplying condensing water to condense water in air, and the opening/closing unit is constructed to open and close the aeration tube by condensing water supplied by the condensing water supply tube. During drying, the drying space is closed to improve drying efficiency. Afterward, air is introduced to prevent accidents.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: April 4, 2006
    Assignee: LG Electronics Inc.
    Inventors: Kyung-Seop Hong, Young-Hwan Park, Choon-Myun Chung
  • Publication number: 20060010641
    Abstract: A vacuum cleaner comprises: a body; a suction head arranged at a lower side of the body and sucking dust or filth; a suction fan mounted at the body and generating a suction force; a dust collecting container mounted in the body and collecting dust or filth sucked into the suction head; and a compression unit mounted at the body and compressing dust or filth collected in the dust collecting container.
    Type: Application
    Filed: January 14, 2005
    Publication date: January 19, 2006
    Inventors: Hyeun-Sik Nam, Choon-Myun Chung, Yong-Woo Lee, Young-Gyu Jung
  • Publication number: 20050262657
    Abstract: A complex type cleaner comprises: a body; a suction head arranged at a lower side of the body, for sucking dust at the time of performing a vacuum cleaning and sucking dirty water at the time of performing a water cleaning; a suction fan for generating a suction force so that dust and dirty water can be sucked into the suction head; a reservoir detachably mounted at the body and storing dust or dirty water; and a valve assembly for converting a cleaning mode into a vacuum cleaning mode or a water cleaning mode by selectively opening and closing passages connected among the suction head, the reservoir, and the suction fan. A vacuum cleaning function for sucking dust and a water cleaning function are implemented at one cleaner, thereby reducing the cost and facilitating the usage and the storage.
    Type: Application
    Filed: December 3, 2004
    Publication date: December 1, 2005
    Inventors: Yong-Woo Lee, Hyeun-Sik Nam, Choon-Myun Chung, Ho-Seon Rew
  • Patent number: 6957501
    Abstract: A clothes dryer and a method for controlling its operation are disclosed, in which the clothes dryer includes a second motor being separately driven from a drum or a circulation fan to control a cooling fan for cooling a condenser. As for the second motor, a variable speed motor is used and amount of heating of a heater of the clothes dryer is variable. In the method for controlling an operation of a clothes dryer, the cooling fan is operated when a predetermined period of time passes after the cooling fan being stopped during an initial operation, or the cooling fan is operated at a regular speed when a temperature of air circulating reaches a predetermined degree after the cooling fan being operated at a low speed during the initial operation of the clothes dryer. Also, the speed of the cooling fan is varied according to amount of heating of the heater.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: October 25, 2005
    Assignee: LG Electronics Inc.
    Inventors: Young Hwan Park, Choon Myun Chung, Mu Yong Choi, Dae Yun Park, Kyung Seop Hong
  • Publication number: 20050217067
    Abstract: A filtering device for a vacuum cleaner comprises: a casing having a collecting space therein, a suction opening through which air including dust is sucked and a discharge opening through which purified air is discharged; a filter installed at the internal space of the casing, for filtering dust from air sucked through the suction opening; and a filter cleaning unit disposed to encompass an outer circumferential surface of the filter, for cleaning the filter by being rotated by a rotation force of air sucked through the suction opening. Accordingly, the filtering device can remove fine dust attached to the filter in a cleaning operation, thereby preventing a channel of the filter from being closed with the dust.
    Type: Application
    Filed: September 21, 2004
    Publication date: October 6, 2005
    Inventors: Ho-Seon Rew, Choon-Myun Chung
  • Publication number: 20050198766
    Abstract: A filter device for a vacuum cleaner comprises: a casing having a collecting space therein, a suction opening through which air including dust is sucked, formed eccentrically at one side so that sucked air can be rotated and a discharge opening through which purified air is discharged; a filter installed at an internal space of the casing, for filtering dust from air sucked through the suction opening; a filter cleaning unit disposed at an outer circumferential surface of the filter, for cleaning the filter by being rotated by a rotation force of air sucked through the suction opening; and a rotation restraining means for restraining rotation of the filter cleaning unit when the filter cleaning unit reaches a top dead point. Accordingly, fine dust attached to the filter in cleaning is removed so that a channel of the filter can be prevented from being closed.
    Type: Application
    Filed: August 6, 2004
    Publication date: September 15, 2005
    Applicant: LG Electronics Inc.
    Inventors: Hyeun-Sik Nam, Yong-Woo Lee, Choon-Myun Chung, Ho-Seon Rew
  • Publication number: 20050166358
    Abstract: A cleaner comprises a cleaning fluid container installed at a cleaner body, for providing a space in which a cleaning fluid is stored; a cleaning fluid dispensing unit for dispensing a cleaning fluid in the cleaning fluid container to a cleaning region; a brush rotatably installed at a bottom of the cleaner body, for brushing a cleaning region by being rotated; a recovery unit for recovering a soiled fluid including a filth from the cleaning region; a recovery fluid container installed at the cleaner body, for storing the recovered soiled fluid; and a drying unit for heating air and dispensing the heated air to the cleaning region. Accordingly, the moisture remaining at a cleaning region is quickly removed, and so cleaning efficiency can be improved.
    Type: Application
    Filed: August 9, 2004
    Publication date: August 4, 2005
    Inventors: Young-Woo Lee, Hyeun-Sik Nam, Choon-Myun Chung, Ho-Seon Rew
  • Publication number: 20050081575
    Abstract: A condensing apparatus of a washing and drying machine comprising a casing for forming an accommodating space therein; a tub installed in the casing; an air duct of which one end is connected to the tub thus for introducing air into the tub; a blower fan for blowing air along the air duct; and a heating means for heating air of the air duct before being introduced into the tub, wherein the condensing apparatus comprises: a condensing duct of which one end is connected to a lower region of the tub and another end is upwardly extending; a condensate water supplying duct connected to a lower region of the condensing duct for supplying condensate water into the condensing duct; and a condensate water dispersing portion provided with a plurality of dispersion holes formed along a circumferential direction of the condensing duct with a certain interval and arranged at an outlet side of the condensate water supplying duct along a flow direction of the condensate water, for dispersedly dropping condensate water suppl
    Type: Application
    Filed: October 20, 2003
    Publication date: April 21, 2005
    Applicant: LG Electronics Inc.
    Inventors: Young-Hwan Park, Kyung-Seop Hong, Choon-Myun Chung
  • Publication number: 20050081576
    Abstract: A drum type washing and drying apparatus comprising: a washing unit including a tub receiving a water for washing laundry and a first drum rotatably installed inside the tub; a drying unit including a second drum rotatably installed in the vicinity of the washing unit; a first airflow duct of which one end is connected to the inside of the tub and the other end is connected to the second drum; a blowing fan installed at the first airflow duct for introducing an air inside the tub into the second drum through the first airflow duct; a heating means for heating the air passing through the first airflow duct; and a second airflow duct of which one end is connected to the second drum and the other end is connected to the tub so that the air inside the second drum is introduced into the tub therethrough, thereby improving drying performance thereof and reducing fabrication costs and noise.
    Type: Application
    Filed: October 20, 2003
    Publication date: April 21, 2005
    Applicant: LG ELECTRONICS INC.
    Inventors: Young-Hwan Park, Kyung-Seop Hong, Choon-Myun Chung
  • Patent number: 6832441
    Abstract: Method for controlling a drying process of a washing and drying machine including a preheating step for tightly closing and heating an inner tub for preparing an environment favorable for vaporization of water by elevating a temperature of the inner tub within a short time period, and a drying step for supplying heated air to the inner tub, to make heat exchange between the heated air and laundry, for drying the laundry, whereby improving a drying performance and reducing occurrence of environmental problem.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: December 21, 2004
    Assignee: LG Electronics Inc.
    Inventors: In Chul Jeong, Kyung Chul Woo, Kyeong Hwan Kim, Choon Myun Chung, Mu Yong Choi
  • Publication number: 20040250373
    Abstract: In a vacuum cleaner, by including a casing having a certain internal space; a suction force generating unit installed in the casing to generate a suction force and discharge sucked air; a head unit combined with the casing to suck impurities on the bottom with air by a suction force of the suction force generating unit or discharge air sucked from the outside; a filter unit for filtering off impurities in air sucked through the head unit or ambient air received from the outside; a flow channel switch means connected with the head unit, the filter unit and the suction force generating unit so as to selectively switch a flow channel in order to guide air including impurities sucked through the head unit by the suction force of the suction force generating unit or make ambient air introduced in the flow channel switch means flow to the head unit; and plural pipes for providing passages of air flowing in the head unit, the filter unit, the suction force generating unit and the flow channel switch means, it is pos
    Type: Application
    Filed: December 23, 2003
    Publication date: December 16, 2004
    Inventors: Ho-Seon Rew, Yong-Woo Lee, Hyeon-Sik Nam, Choon-Myun Chung
  • Publication number: 20040231095
    Abstract: A cleaner includes a suction motor mounted in a cleaner main body, and generating a suction force; a filter for collecting dust or filth sucked by the suction force generated at the suction motor; a suction head connected with the filter by a suction tube, and sucking dust and filth on a floor; a brush installed in the suction head so as to ascend/descend in a vertical direction, and sweeping dust and foreign substances into the suction head; and a brush height control apparatus installed in the suction head, and making the brush ascend/descend in a vertical direction. The cleaner having a brush height control apparatus can prevent deterioration of a suction force and improving cleaning performance by constantly maintaining a gap between the suction head and the floor.
    Type: Application
    Filed: November 20, 2003
    Publication date: November 25, 2004
    Applicant: LG Electronics Inc.
    Inventors: Hyeun Sik Nam, Yong Woo Lee, Ho-Seon Rew, Choon Myun Chung
  • Publication number: 20040221418
    Abstract: A cleaner having a brush includes a suction motor mounted in a main body, and generating a suction force; a filter for collecting dust or filth sucked by the suction force generated at the suction motor; a suction head connected with the filter by a suction pipe, and having an inlet through which dust and filth on a floor are sucked; and a brush rotatably mounted at an inside of the suction head. The inlet is partitioned off into a first section and a second section by a belt cover for protecting a belt winding around the brush, and a flow passage unit is formed at the brush so that air can flow between the first and second sections. Accordingly, air can flow smoothly at a portion, which is blocked by the belt cover, and thus cleaning performance can be improved.
    Type: Application
    Filed: November 25, 2003
    Publication date: November 11, 2004
    Applicant: LG ELECTRONICS INC.
    Inventors: Hyeun Sik Nam, Yong Woo Lee, Ho-Seon Rew, Choon Myun Chung
  • Publication number: 20040211030
    Abstract: A suction apparatus of a cleaner includes: a suction motor inserted in a cleaner body and generating a suction force; a filter for collecting dust or filth sucked by a suction force generated fro the suction motor; a suction head connected to the filter by a suction pipe and sucking dust and filth on the floor by the suction force generated from the suction motor; and an auxiliary suction unit installed at the opposite side of a side where the suction pipe of the suction head is connected.
    Type: Application
    Filed: November 6, 2003
    Publication date: October 28, 2004
    Applicant: LG Electronics Inc.
    Inventors: Hyeun Sik Nam, Yong Woo Lee, Ho-Seon Rew, Choon Myun Chung