Patents by Inventor Cheon-Gi DO

Cheon-Gi DO 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).

  • Damping device for building seismic reinforcement
    Patent number: 8998182
    Abstract: Provided is a damping device including a cylindrical body sealed with an inner cover and an outer cover at both ends, a support rod coupled to one end of the cylindrical body to perform an axial motion, the support rod including a moving plate having a damping orifice in the cylindrical body, the support rod including a nut configured to adjust a length of the support rod at an inner side end received in the cylindrical body, and a buffering device configured to store elastic energy in one of a first spring and a second spring based on a moving direction of the moving plate, the buffering device including the first spring inserted in the inner cover, the second spring inserted in the outer cover, and a lubricant in the cylindrical body.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: April 7, 2015
    Assignees: Kyungpook National University Industry-Academic Cooperation Foundation, Leader's Industrial Co., Ltd.
    Inventors: Cheol-Hwan Kim, Cheon-Gi Do
  • DAMPING DEVICE FOR BUILDING SEISMIC REINFORCEMENT
    Publication number: 20140183802
    Abstract: Provided is a damping device including a cylindrical body sealed with an inner cover and an outer cover at both ends, a support rod coupled to one end of the cylindrical body to perform an axial motion, the support rod including a moving plate having a damping orifice in the cylindrical body, the support rod including a nut configured to adjust a length of the support rod at an inner side end received in the cylindrical body, and a buffering device configured to store elastic energy in one of a first spring and a second spring based on a moving direction of the moving plate, the buffering device including the first spring inserted in the inner cover, the second spring inserted in the outer cover, and a lubricant in the cylindrical body.
    Type: Application
    Filed: December 18, 2013
    Publication date: July 3, 2014
    Applicants: Leader's Industrial Co., Ltd., Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Cheol-Hwan KIM, Cheon-Gi DO