Patents by Inventor Hak Guym Kim

Hak Guym Kim 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).

  • Hybrid ventilation apparatus capable of both natural and forced ventilation
    Patent number: 9551502
    Abstract: Disclosed herein is a hybrid ventilation apparatus capable of both natural and forced ventilation. In the case of a natural ventilation mode, a worm gear is rotated in a normal direction by drive force of a drive unit under control of a control unit so that a pressing member engages with a rotation guide protrusion and rotates a damper, thus opening a flow passage, and then the worm gear is reversely rotated by drive force of the drive unit to return the pressing member to its original position, thus allowing a user to rotate a roller upwards and downwards and rotate the damper so that the degree of opening of the flow passage can be adjusted. Thereby, rapid inflow of outdoor air can be blocked, and a cold graft phenomenon, in which the temperature of indoor air rapidly drops, can be prevented.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: January 24, 2017
    Assignees: KOREA INSTITUTE OF CONSTRUCTION TECHNOLOGY, PEOPLUS CO., LTD, HUTECO CO., LTD.
    Inventors: Hak Sung Kim, Hak Guym Kim, Yun Gyu Lee
  • HYBRID VENTILATION APPARATUS CAPABLE OF BOTH NATURAL AND FORCED VENTILATION
    Publication number: 20140248831
    Abstract: Disclosed herein is a hybrid ventilation apparatus capable of both natural and forced ventilation. In the case of a natural ventilation mode, a worm gear is rotated in a normal direction by drive force of a drive unit under control of a control unit so that a pressing member engages with a rotation guide protrusion and rotates a damper, thus opening a flow passage, and then the worm gear is reversely rotated by drive force of the drive unit to return the pressing member to its original position, thus allowing a user to rotate a roller upwards and downwards and rotate the damper so that the degree of opening of the flow passage can be adjusted. Thereby, rapid inflow of outdoor air can be blocked, and a cold graft phenomenon, in which the temperature of indoor air rapidly drops, can be prevented.
    Type: Application
    Filed: March 20, 2012
    Publication date: September 4, 2014
    Applicants: KOREA INSTITUTE OF CONSTRUCTION TECHNOLOGY, HUTECO CO., LTD., PEOPLUS CO., LTD.
    Inventors: Hak Sung Kim, Hak Guym Kim, Yun Gyu Lee