Patents by Inventor Hyung Kyou Ryu

Hyung Kyou Ryu 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).

  • Non-directional smoke control damper having chain gear type blade advancing/retreating device
    Patent number: 9452304
    Abstract: A non-directional smoke control damper includes a central blade (11), a plurality of outer blades (12) and a blade advancing/retreating device; an outer edge of the central blade (11) overlaps with an opening edge of the plurality of outer blades (12); a support shaft (110) is disposed to pass through the overlapping portion of the edges; a rear end of the support shaft (110) is coupled through a shaft coupling plate (230); and if the central blade (11) advances forwards, the plurality of outer blades (12) advance forwards in order so that a gap is formed at each edge between the central blade (11) and an adjacent outer blade and between a prior-order outer blade and a posterior outer blade to form a blowing passage, thereby allowing an air current to flow into the vestibule through the blowing passage.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: September 27, 2016
    Assignee: Daelim Industrial Co., Ltd.
    Inventors: Hyung Kyou Ryu, Sang Hwan Bae
  • NON-DIRECTIONAL SMOKE CONTROL DAMPER HAVING CHAIN GEAR TYPE BLADE ADVANCING/RETREATING DEVICE
    Publication number: 20140065941
    Abstract: A non-directional smoke control damper includes a central blade (11), a plurality of outer blades (12) and a blade advancing/retreating device; an outer edge of the central blade (11) overlaps with an opening edge of the plurality of outer blades (12); a support shaft (110) is disposed to pass through the overlapping portion of the edges; a rear end of the support shaft (110) is coupled through a shaft coupling plate (230); and if the central blade (11) advances forwards, the plurality of outer blades (12) advance forwards in order so that a gap is formed at each edge between the central blade (11) and an adjacent outer blade and between a prior-order outer blade and a posterior outer blade to form a blowing passage, thereby allowing an air current to flow into the vestibule through the blowing passage.
    Type: Application
    Filed: February 14, 2013
    Publication date: March 6, 2014
    Applicant: DAELIM INDUSTRIAL CO., LTD.
    Inventors: Hyung Kyou Ryu, Sang Hwan Bae