Patents by Inventor Yeong Seon Oh

Yeong Seon Oh 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).

  • Plasma welding apparatus for guide thimble and guide thimble end plug of nuclear fuel assembly
    Patent number: 9646728
    Abstract: Disclosed is a plasma welding apparatus for a guide thimble and guide thimble end plug of a nuclear fuel assembly, which includes: a welding chamber (100) includes an end-plug inserting part (110) into which the end plug (10) is inserted, a guide-thimble inserting part (120) which is provided on the same axis as the end-plug inserting part (110) and into which the guide thimble (20) is inserted and fixed, a torch assembling part (130) to which a plasma welding torch (131) is assembled so as to make a right angle with the end-plug inserting part (110) and the guide-thimble inserting part (120), and argon inflow and outflow ports (141, 142) through which argon is supplied or discharged; an end-plug transfer unit (210) supplying the end plug (10) to the end-plug inserting part (110); and an guide-thimble transfer unit (220) transferring the guide thimble (20) to the guide-thimble inserting part (120).
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: May 9, 2017
    Assignee: KEPCO NUCLEAR FUEL CO., LTD.
    Inventors: Ju Young Lee, Chang Hwan Hwang, Hung Soon Chang, Soon Ki Guk, Tae Hyung Na, Yeong Seon Oh
  • PLASMA WELDING APPARATUS FOR GUIDE THIMBLE AND GUIDE THIMBLE END PLUG OF NUCLEAR FUEL ASSEMBLY
    Publication number: 20140190945
    Abstract: Disclosed is a plasma welding apparatus for a guide thimble and guide thimble end plug of a nuclear fuel assembly, which includes: a welding chamber (100) includes an end-plug inserting part (110) into which the end plug (10) is inserted, a guide-thimble inserting part (120) which is provided on the same axis as the end-plug inserting part (110) and into which the guide thimble (20) is inserted and fixed, a torch assembling part (130) to which a plasma welding torch (131) is assembled so as to make a right angle with the end-plug inserting part (110) and the guide-thimble inserting part (120), and argon inflow and outflow ports (141, 142) through which argon is supplied or discharged; an end-plug transfer unit (210) supplying the end plug (10) to the end-plug inserting part (110); and an guide-thimble transfer unit (220) transferring the guide thimble (20) to the guide-thimble inserting part (120).
    Type: Application
    Filed: January 7, 2014
    Publication date: July 10, 2014
    Applicant: KEPCO NUCLEAR FUEL CO., LTD.
    Inventors: Ju Young LEE, Chang Hwan Hwang, Hung Soon Chang, Soon Ki Guk, Tae Hyung Na, Yeong Seon Oh