Patents by Inventor Ho Cheol Kwon

Ho Cheol Kwon 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: 7543465
    Abstract: A detergent box for a washing machine is provided. The detergent box is slidably coupled to a front portion of the washing machine, and has a structure that prevents release of the detergent box from the washing machine even if the washing machine is tilted or shaken, and that facilitates proper placement of the detergent box. The detergent box may include a stopper, and a rib having an elastic slot formed therein. The detergent box holds washing agents, and the dispenser is mounted in the washing machine so as to receive the detergent box therein. The dispenser has a recess for seating the stopper therein as the detergent box is placed in the dispenser. The rib may include an elastic slot to provide an elastic force to the stopper.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: June 9, 2009
    Assignee: LG Electronics Inc.
    Inventors: Ho Cheol Kwon, Beom Jun Kim, Il Hyeok Yim, Kang Mo Choi, Hack Chai Song
  • Patent number: 7490489
    Abstract: A drum type washing machine includes a tub for holding water. A motor is secured to one side of the tub, and the motor has a stator and a rotor. A stator fastening part is disposed between an inner surface and an outer surface of the tub to secure the stator of the motor thereto.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: February 17, 2009
    Assignee: LG Electronics, Inc.
    Inventors: Gon Kim, Chi Wan Hur, Yu Beom Kang, Sang Man Je, Kang Mo Choi, Jae Kyum Kim, Ho Cheol Kwon
  • Publication number: 20090039216
    Abstract: An automatic level controlling apparatus for supporting an appliance includes a hollow leg body, a piston inserted in the hollow leg body, a spring seated on an upper portion of the piston, a cap disposed on an upper portion of the piston to support an upper portion of the spring, a frictional member disposed around the piston, and a piston rod coupled to the piston and supported on a floor.
    Type: Application
    Filed: October 6, 2005
    Publication date: February 12, 2009
    Inventors: Ho Cheol Kwon, Hack Jai Song, Beom Jun Kim, Il Jyeok Yim, Kang Mo Choi
  • Patent number: 7478546
    Abstract: Drum type washing machine including a tub of plastic having a wall for holding washing water therein and mounting a driving part thereon, a drum rotatably arranged inside of the tub, a shaft passed through the tub and connected to the drum for transmission of a driving power from a motor to the drum, at least one bearing for supporting the shaft, a bearing housing having a sleeve form of bearing supporting part, and a stator fastening part extended in a radial direction from the bearing supporting part, wherein both of the bearing supporting part and the stator fastening part are inserted in a tub rear wall, while stator fastening holes in the stator fastening part are exposed, a rotor engaged to a rear end part of the shaft to form the motor together with the stator, and the stator mounted on the stator fastening part of the bearing housing with fastening members on an inner side of the rotor to form the motor together with the rotor, wherein the stator includes an annular helical type core having multiple l
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: January 20, 2009
    Assignee: LG Electronics, Inc.
    Inventors: Gon Kim, Chi Wan Hur, Yu Beom Kang, Sang Man Je, Kang Mo Choi, Jae Kyum Kim, Ho Cheol Kwon
  • Patent number: 7475444
    Abstract: A washing machine and a method of controlling the same that is capable of determining whether laundry is a single load or a multiple load based on detected value of eccentricity or detected laundry amount and changing revolutions per minute of a motor or the number of eccentricity detections based on the determined load amount such that different spin-drying actions are performed. The washing machine comprises an eccentricity detecting unit for detecting eccentricity of laundry received in a drum, a motor driving unit for driving a motor such that the drum is rotated, and a microprocessor for determining whether the laundry is a single load or a multiple load based on the value of eccentricity detected by the eccentricity detecting unit and changing revolutions per minute of the motor or the number of eccentricity detections of the eccentricity detecting unit based on the initially determined load amount.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: January 13, 2009
    Assignee: LG Electronics Inc.
    Inventors: Il Hyeok Yim, Ho Cheol Kwon, Hack Chai Song, Beon Jun Kim
  • Patent number: 7444841
    Abstract: Drum type washing machine including a tub of plastic having a wall for holding washing water therein and mounting a driving part thereon, a drum rotatably arranged inside of the tub, a shaft passed through the tub and connected to the drum for transmission of a driving power from a motor to the drum, at least one bearing for supporting the shaft, a bearing housing having a sleeve form of bearing supporting part, and a stator fastening part extended in a radial direction from the bearing supporting part, wherein both of the bearing supporting part and the stator fastening part are inserted in a tub rear wall, while stator fastening holes in the stator fastening part are exposed, a rotor engaged to a rear end part of the shaft to form the motor together with the stator, and the stator mounted on the stator fastening part of the bearing housing with fastening members on an inner side of the rotor to form the motor together with the rotor, wherein the stator includes an annular helical type core having multiple l
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: November 4, 2008
    Assignee: LG Electronics Inc.
    Inventors: Gon Kim, Chi Wan Hur, Yu Beom Kang, Sang Man Je, Kang Mo Choi, Jae Kyum Kim, Ho Cheol Kwon
  • Patent number: 7441423
    Abstract: Structure of driving unit in a drum type washing machine including a tub mounted inside of a cabinet, a drum mounted inside of the tub, a shaft connected to the drum mounted inside of the tub for transmission of a driving force from a motor to the drum, a front bearing and a rear bearing mounted on an outer circumference of the shaft at opposite end portions thereof respectively, a bearing housing built in a central portion of a rear wall of the tub for supporting the front bearing, a rotor composing the motor together with the rotor, and coupled to the rear end portion of the shaft, a stator fixed to the tub rear wall inward of the rotor to compose the motor together with the rotor, a connector serration coupled to the outer circumference of the shaft in front of the rear bearing and fixed to the rotor, for transmission of a rotating power from the rotor to the shaft, and a bearing bracket fixed to the rear wall of the tub to cover an outside of the rotor and support the rear bearing, thereby reducing noise,
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: October 28, 2008
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Jong A Park, Kang Mo Choi
  • Patent number: 7441420
    Abstract: A device for fastening a tub to move a drum type washing machine is disclosed, in which a main body of a fastening bolt having no thread is located in an inlet of a fastening boss formed in a tub so that the intensity of the fastening bolt is improved. Thus, the fastening bolt can bear stress generated by vibration of the tub and external impact when the drum type washing machine moves.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: October 28, 2008
    Assignee: LG Electronics Inc.
    Inventors: Jea-Kyum Kim, Ho-Cheol Kwon
  • Patent number: 7441742
    Abstract: A horizon control structure for a washing machine is provided. The structure includes: a stopper base having a base body having a predetermined diameter, a sleeve mount hollow depressed inside of the base body and having a predetermined diameter, at least one protrusion insertion through-hole being at a distance and provided inside of the base body, and a slip preventing part provided on a bottom surface of the base body; and a leg stopper layered on the stopper base, and having a stopper body having a predetermined diameter, an insertion sleeve extended from a rear surface of the stopper body and having a predetermined diameter and length, and an insertion protrusion protruded from a rear surface of the stopper body and having a predetermined length.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: October 28, 2008
    Assignee: LG Electronics Inc.
    Inventors: Ho Cheol Kwon, Il Hyeok Yim, Youn Su Jung, Hack Jai Song, Beom Jun Kim
  • Patent number: 7441421
    Abstract: A motor for a washing machine has a stator secured to one side of a tub which holds washing water and a rotor disposed on an outer side of the stator. The stator includes a core and an insulator that holds the core, and the insulator has a fastening part with a fastening hole formed on the insulator. A fastener fastens the stator to the one side of the tub using the fastening hole formed on the insulator.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: October 28, 2008
    Assignee: LG Electronics Inc.
    Inventors: Gon Kim, Chi Wan Hur, Yu Beom Kang, Sang Man Je, Kang Mo Choi, Jae Kyum Kim, Ho Cheol Kwon
  • Patent number: 7418843
    Abstract: A washing machine has a tub that may be made of plastic. A drum is rotatably installed in the tub. A shaft may pass through the tub and connect to the drum for transmission of a driving power from a motor to the drum. The washing machine has a bearing supporting part and a stator fastening part extended in a radial direction from the bearing supporting part, where the tub has an inner surface and an outer surface, and the bearing supporting part and the stator fastening part are disposed between the inner surface and the outer surface of the tub.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: September 2, 2008
    Assignee: LG Electronics Inc.
    Inventors: Gon Kim, Chi Wan Hur, Yu Beom Kang, Sang Man Je, Kang Mo Choi, Jae Kyum Kim, Ho Cheol Kwon
  • Patent number: 7398662
    Abstract: A gasket and drum washing machine using the same. The washing machine includes a cabinet having a first opening through which a laundry is put in the cabinet, a tub installed in the cabinet to have a second opening corresponding to the first opening, a drum installed in the tub to have a third opening corresponding to the second opening, and a gasket for preventing leakage of water. The gasket includes a leakage preventing part having one end connected to a rim of the first opening and the other end connected to a rim of the second opening to prevent water leakage, a deformation preventing part connected to the leakage preventing part, and a laundry-stuck preventing part provided on an inner circumference of the leakage preventing part to prevent the laundry from being stuck between the second and third openings.
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: July 15, 2008
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Kang Mo Choi
  • Patent number: 7380422
    Abstract: Disclosed is a drum type washing machine, by which washing performance is increased as well as laundry damage and water pollution are reduced. The present invention includes a tub provided in a cabinet to hold water, a drum rotatably installed in the tub, at least one or more ceramics, and at least one or more ceramic receivers provided on an inside of the drum to hold the ceramic therein.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: June 3, 2008
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Kang Mo Choi
  • Patent number: 7380424
    Abstract: Drum type washing machine including a tub of plastic having a wall for holding washing water therein and mounting a driving part thereon, a drum rotatably arranged inside of the tub, a shaft passed through the tub and connected to the drum for transmission of a driving power from a motor to the drum, at least one bearing for supporting the shaft, a bearing housing having a sleeve form of bearing supporting part, and a stator fastening part extended in a radial direction from the bearing supporting part, wherein both of the bearing supporting part and the stator fastening part are inserted in a tub rear wall, while stator fastening holes in the stator fastening part are exposed, a rotor engaged to a rear end part of the shaft to form the motor together with the stator, and the stator mounted on the stator fastening part of the bearing housing with fastening members on an inner side of the rotor to form the motor together with the rotor, wherein the stator includes an annular helical type core having multiple l
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: June 3, 2008
    Assignee: LG Electronics Inc.
    Inventors: Gon Kim, Chi Wan Hur, Yu Beom Kang, Sang Man Je, Kang Mo Choi, Jae Kyum Kim, Ho Cheol Kwon
  • Patent number: 7305857
    Abstract: Structure of driving unit in a drum type washing machine including a tub mounted inside of a cabinet, a drum mounted inside of the tub, a shaft connected to the drum mounted inside of the tub for transmission of a driving force from a motor to the drum, a front bearing and a rear bearing mounted on an outer circumference of the shaft at opposite end portions thereof respectively, a bearing housing built in a central portion of a rear wall of the tub for supporting the front bearing, a rotor composing the motor together with the rotor, and coupled to the rear end portion of the shaft, a stator fixed to the tub rear wall inward of the rotor to compose the motor together with the rotor, a connector serration coupled to the outer circumference of the shaft in front of the rear bearing and fixed to the rotor, for transmission of a rotating power from the rotor to the shaft, and a bearing bracket fixed to the rear wall of the tub to cover an outside of the rotor and support the rear bearing, thereby reducing noise,
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: December 11, 2007
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Jong A Park, Kang Mo Choi
  • Patent number: 7293437
    Abstract: A drum washing machine having a gasket to prevent leakage of water in the tub and the laundry from being stuck in a laundry opening part. The washing machine including a cabinet having a first opening through which a laundry is put in the cabinet, a tub installed in the cabinet to have a second opening corresponding to the first opening, a drum installed in the tub to have a third opening corresponding to the second opening, and a gasket including a leakage preventing part having one end connected to a rim of the first opening and the other end connected to a rim of the second opening to prevent water leakage and a laundry-stuck preventing part provided on an inner circumference of the leakage preventing part to prevent the laundry from being stuck in a space between the first and third openings.
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: November 13, 2007
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Kang Mo Choi
  • Patent number: 7168118
    Abstract: Object of the present invention lies on improving a system stability by reducing an allowable eccentricity of laundry below a preset value when a spinning speed reaches to a maximum even if a voltage higher than a rated voltage is applied, by varying a maximum limit of a lead angle with a voltage applied to a drum type washing machine. For achieving the object of the present invention, in a method for controlling a spinning speed of the present invention, a maximum value of a lead angle is set to vary with an applied voltage after detection of the applied voltage.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: January 30, 2007
    Assignee: LG Electronics Inc.
    Inventors: Jea-Kyum Kim, Ho-Cheol Kwon, Jong-A Park, Kang-Mo Choi, Kweon Son
  • Patent number: 7166950
    Abstract: Structure of driving unit in a drum type washing machine including a tub mounted inside of a cabinet, a drum mounted inside of the tub, a shaft connected to the drum mounted inside of the tub for transmission of a driving force from a motor to the drum, a front bearing and a rear bearing mounted on an outer circumference of the shaft at opposite end portions thereof respectively, a bearing housing built in a central portion of a rear wall of the tub for supporting the front bearing, a rotor composing the motor together with the rotor, and coupled to the rear end portion of the shaft, a stator fixed to the tub rear wall inward of the rotor to compose the motor together with the rotor, a connector serration coupled to the outer circumference of the shaft in front of the rear bearing and fixed to the rotor, for transmission of a rotating power from the rotor to the shaft, and a bearing bracket fixed to the rear wall of the tub to cover an outside of the rotor and support the rear bearing, thereby reducing noise,
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: January 23, 2007
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Jong A Park, Kang Mo Choi
  • Patent number: 7132771
    Abstract: A motor for a drum type washing machine is disclosed, wherein noise is reduced. To this end, the drum type washing machine is provided with a washing motor having a stator fitted at a rear surface of a tub and having a plurality of slots on which a coil is wound; a rotor provided at an outer side of the stator with a permanent magnet and connected to a washing drum inside the tub by a driving shaft; and isolating means for isolating a gap between the stator and the rotor not to be communicated with the stator and the rotor.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: November 7, 2006
    Assignee: LG Electronics Inc.
    Inventors: Ho Cheol Kwon, Jae Kyum Kim
  • Patent number: 7131178
    Abstract: Structure of driving unit in a drum type washing machine including a tub mounted inside of a cabinet, a drum mounted inside of the tub, a shaft connected to the drum mounted inside of the tub for transmission of a driving force from a motor to the drum, a front bearing and a rear bearing mounted on an outer circumference of the shaft at opposite end portions thereof respectively, a bearing housing built in a central portion of a rear wall of the tub for supporting the front bearing, a rotor composing the motor together with the rotor, and coupled to the rear end portion of the shaft, a stator fixed to the tub rear wall inward of the rotor to compose the motor together with the rotor, a connector serration coupled to the outer circumference of the shaft in front of the rear bearing and fixed to the rotor, for transmission of a rotating power from the rotor to the shaft, and a bearing bracket fixed to the rear wall of the tub to cover an outside of the rotor and support the rear bearing, thereby reducing noise,
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: November 7, 2006
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Jong A. Park, Kang Mo Choi