Patents by Inventor Clarence Edward Choi

Clarence Edward Choi 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).

  • Bi-linear energy dissipating and shock absorbing device for cable subjected to tension
    Patent number: 11448280
    Abstract: A device (1) comprises: a cylindrical shell (4); a first spring (5) encased inside the cylindrical shell (4); a second spring (6) encased inside the cylindrical shell (4); a separator (13) in the cylindrical shell (4) separating the first and second springs (5, 6); a first end plate (12) on a first side (13a) of the separator (13) and a second end plate (11) on a second side (13b) of the separator (13); a first rod (2) and a second rod (3) passing openings (20a, 20b) provided at each end of the cylindrical shell (4), with the first rod (2) connected to the first end plate (12) and the second rod (3) connected to the second end plate (11); and a spacer (14) inserted between the first end plate (12) and the first spring (5).
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: September 20, 2022
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Charles Wang Wai Ng, Clarence Edward Choi, Dongri Song
  • BI-LINEAR ENERGY DISSIPATING AND SHOCK ABSORBING DEVICE FOR CABLE SUBJECTED TO TENSION
    Publication number: 20180274618
    Abstract: A device (1) comprises: a cylindrical shell (4); a first spring (5) encased inside the cylindrical shell (4); a second spring (6) encased inside the cylindrical shell (4); a separator (13) in the cylindrical shell (4) separating the first and second springs (5, 6); a first end plate (12) on a first side (13a) of the separator (13) and a second end plate (11) on a second side (13b) of the separator (13); a first rod (2) and a second rod (3) passing openings (20a, 20b) provided at each end of the cylindrical shell (4), with the first rod (2) connected to the first end plate (12) and the second rod (3) connected to the second end plate (11); and a spacer (14) inserted between the first end plate (12) and the first spring (5).
    Type: Application
    Filed: January 4, 2017
    Publication date: September 27, 2018
    Applicant: The Hong Kong University of Science and Technology
    Inventors: Charles Wang Wai Ng, Clarence Edward Choi, Dongri Song