Patents by Inventor Ui Jea LEE

Ui Jea LEE 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).

  • Patent number: 9659675
    Abstract: Disclosed is a fuel rod auto-loading apparatus for a nuclear fuel assembly, which disposes fuel rods in a fuel rod case in a bundle to assemble the fuel rods into the nuclear fuel assembly. The fuel rod auto-loading apparatus includes a fuel rod storage unit having a plurality of stacked racks for fuel rods, a fuel rod loading unit raised/lowered to the racks and transferring the fuel rods, a feeding unit placing the fuel rods in rows and loading the fuel rods into the fuel rod case, a fuel rod unloading unit selectively unloading some of the fuel rods stored in the fuel rod storage unit and transferring the fuel rods to the feeding unit, a fuel rod assembly lifter which is disposed parallel to the feeding unit, and a controller controlling driving of the fuel rod loading unit, the feeding unit, and the fuel rod unloading unit.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: May 23, 2017
    Assignee: KEPCO NUCLEAR FUEL CO., LTD.
    Inventors: Ju Young Lee, Chang Hwan Hwang, Hung Soon Chang, Soon Ki Guk, Yeon Doo Jung, Ui Jea Lee
  • Patent number: 9412475
    Abstract: Disclosed is a fuel rod testing apparatus for a nuclear fuel assembly. The fuel rod testing apparatus includes a helium leakage testing chamber having a gate so that a fuel rod is horizontally loaded/unloaded and testing whether or not helium leaks from the fuel rod, a fuel rod upward/downward transfer unit that has first and second transfer sections located in front of the gate and horizontally installed apart from each other in order to guide the fuel rod loaded into or unloaded from the helium leakage testing chamber, and that vertically drives the first and second transfer sections, and a main frame that has a upper transfer section disposed in parallel in a lengthwise direction of the fuel rod upward/downward transfer unit and having an inclined face and a lower transfer section installed at a lower portion of the upper transfer section and having an inclined face.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: August 9, 2016
    Assignee: KEPCO NUCLEAR FUEL CO., LTD.
    Inventors: Ju Young Lee, Chang Hwan Hwang, Hung Soon Chang, Soon Ki Guk, Tae Hyung Na, Ui Jea Lee
  • Publication number: 20140192945
    Abstract: Disclosed is a fuel rod auto-loading apparatus for a nuclear fuel assembly, which disposes fuel rods in a fuel rod case in a bundle to assemble the fuel rods into the nuclear fuel assembly. The fuel rod auto-loading apparatus includes a fuel rod storage unit having a plurality of stacked racks for fuel rods, a fuel rod loading unit raised/lowered to the racks and transferring the fuel rods, a feeding unit placing the fuel rods in rows and loading the fuel rods into the fuel rod case, a fuel rod unloading unit selectively unloading some of the fuel rods stored in the fuel rod storage unit and transferring the fuel rods to the feeding unit, a fuel rod assembly lifter which is disposed parallel to the feeding unit, and a controller controlling driving of the fuel rod loading unit, the feeding unit, and the fuel rod unloading unit.
    Type: Application
    Filed: January 8, 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, Yeon Doo JUNG, Ui Jea LEE
  • Publication number: 20140192943
    Abstract: Disclosed is a fuel rod testing apparatus for a nuclear fuel assembly. The fuel rod testing apparatus includes a helium leakage testing chamber having a gate so that a fuel rod is horizontally loaded/unloaded and testing whether or not helium leaks from the fuel rod, a fuel rod upward/downward transfer unit that has first and second transfer sections located in front of the gate and horizontally installed apart from each other in order to guide the fuel rod loaded into or unloaded from the helium leakage testing chamber, and that vertically drives the first and second transfer sections, and a main frame that has a upper transfer section disposed in parallel in a lengthwise direction of the fuel rod upward/downward transfer unit and having an inclined face and a lower transfer section installed at a lower portion of the upper transfer section and having an inclined face.
    Type: Application
    Filed: January 8, 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, Ui Jea LEE