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: 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
  • Patent number: 7114355
    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: August 30, 2002
    Date of Patent: October 3, 2006
    Assignee: LG Electronics, Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Jong A Park, Kang Mo Choi
  • Publication number: 20060101866
    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: Application
    Filed: December 21, 2005
    Publication date: May 18, 2006
    Inventors: Gon Kim, Chi Wan Hur, Yu Beom Kang, Sang Je, Kang Choi, Jae Kim, Ho Cheol Kwon
  • Patent number: 6914363
    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: July 5, 2005
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Jong A Park, Kang Mo Choi
  • Patent number: 6842929
    Abstract: The present invention discloses a method for washing in a washing machine, which can measure an accurate washing load before actual washing is carried out. To do this, the present invention provides a method for controlling washing in a washing machine, including (a) introducing laundry into a drum of the washing machine, (b) measuring an initial washing load caused by the introduced laundry, (c) repeating water supply to the drum for a fixed time period for maintaining a minimum water level determined by the initial washing load, taking water absorbed to the laundry into account, (d) after the preset water supply time period, determining a final washing load in the drum based on a number of water resupply times for an elapsed time from the initial water supply, and (e) washing the laundry by a washing method preset according to the determined final washing load.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: January 18, 2005
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon
  • Publication number: 20040163428
    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: Application
    Filed: December 9, 2003
    Publication date: August 26, 2004
    Applicant: 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: 20040107738
    Abstract: Disclosed is a washing machine and cabinet thereof, which prevents a stress from being concentrated on the cabinet while the washing machine operates. The present invention includes a washing tub having an inner tub rotatably installed to hold a laundry for washing and an outer tub holding the inner tub, a drive means for rotating the inner tub, a body holding the washing tub and the drive means inside, and a front panel in front of the body to have a plurality of notch recesses for preventing stress concentration to improve a rigidity. And, the body includes a base plate at a bottom of the body, a pair of side panels on both sides of the base plate, a rear panel in rear of the base plate and the side panels, and a top panel on the side panels and the rear panel.
    Type: Application
    Filed: November 28, 2003
    Publication date: June 10, 2004
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Kang Mo Choi
  • Publication number: 20040107742
    Abstract: Disclosed is a drum type washing machine having a gasket for preventing leakage of water in the tub and the laundry from being stuck in a laundry opening part.
    Type: Application
    Filed: November 28, 2003
    Publication date: June 10, 2004
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Kang Mo Choi
  • Publication number: 20040107739
    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: Application
    Filed: November 25, 2003
    Publication date: June 10, 2004
    Applicant: LG Electronics, Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Kang Mo Choi
  • Publication number: 20040103693
    Abstract: Disclosed is a gasket and drum type washing machine using the same. The present invention includes a cabinet having a first opening through which a laundry is put in at a cabinet front side wherein a door is installed to open/close the first opening, a tub installed in the cabinet to have a second opening at a tub front side corresponding to the first opening, a drum installed in the tub to have a third opening at a drum front side corresponding to the second opening, a rotation mans having a rotational shaft penetrating a rear side of the tub to be connected to the drum, and a gasket for preventing leakage of water.
    Type: Application
    Filed: November 28, 2003
    Publication date: June 3, 2004
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Kang Mo Choi
  • Publication number: 20040103696
    Abstract: Disclosed is an assembly of supplying a detergent in a washing machine, by which a detergent box can be correctly installed in the washing machine. The present invention includes a receiving part provided in an upper space of the washing machine to have an opening at a front side, a detergent box detachably received in the receiving part via the opening, a drawer panel installed at a front side of the detergent box to form an exterior of the washing machine, and a location correction means for correction a reception location of the detergent box.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 3, 2004
    Applicant: LG Electronics, Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Kang Mo Choi
  • Publication number: 20040055143
    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: Application
    Filed: September 25, 2003
    Publication date: March 25, 2004
    Applicant: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Jon A. Park, Kang Mo Choi
  • Publication number: 20040037640
    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: Application
    Filed: May 30, 2003
    Publication date: February 26, 2004
    Inventors: Jea Kyum Kim, Ho-Cheol Kwon
  • Publication number: 20040019979
    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: Application
    Filed: May 30, 2003
    Publication date: February 5, 2004
    Inventors: Jea-Kyum Kim, Ho-Cheol Kwon, Jong-A Park, Kang-Mo Choi, Kweon Son
  • Publication number: 20030132675
    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 (20) comprising a stator (30) fitted at a rear surface of a tub (3) and having a plurality of slots (33) on which a coil (33a) is wound; a rotor (40) provided at an outer side of the stator (30) with a permanent magnet (41) and connected to a washing drum (9) inside the tub (3) by a driving shaft (17); and isolating means (50, 60, 70, 80) for isolating a gap (21) between the stator (30) and the rotor (40) not to be communicated with the stator (30) and the rotor (40).
    Type: Application
    Filed: December 2, 2002
    Publication date: July 17, 2003
    Inventors: Ho Cheol Kwon, Jae Kyum Kim
  • Publication number: 20030041390
    Abstract: The present invention discloses a method for washing in a washing machine, which can measure an accurate washing load before actual washing is carried out. To do this, the present invention provides a method for controlling washing in a washing machine, including (a) introducing laundry into a drum of the washing machine, (b) measuring an initial washing load caused by the introduced laundry, (c) repeating water supply to the drum for a fixed time period for maintaining a minimum water level determined by the initial washing load, taking water absorbed to the laundry into account, (d) after the preset water supply time period, determining a final washing load in the drum based on a number of water resupply times for an elapsed time from the initial water supply, and (e) washing the laundry by a washing method preset according to the determined final washing load.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 6, 2003
    Inventors: Jae Kyum Kim, Ho Cheol Kwon
  • Publication number: 20030006665
    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: Application
    Filed: August 30, 2002
    Publication date: January 9, 2003
    Applicant: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Jong A. Park, Kang Mo Choi
  • Patent number: 6460382
    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: July 21, 2000
    Date of Patent: October 8, 2002
    Assignee: LG Electronics Inc.
    Inventors: Jae Kyum Kim, Ho Cheol Kwon, Jong A Park, Kang Mo Choi