Patents by Inventor Kie Chan Kwon

Kie Chan Kwon 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: 8670516
    Abstract: The present invention relates to an irradiation device for material test using a gamma ray radiated from a spent nuclear fuel assembly and provides the irradiation device for material test using a gamma ray radiated from a spent nuclear fuel assembly wherein an irradiation device for material test to achieve a radiation effect evaluation is manufactured to be movable upward, downward and horizontally in order to study the hardening phenomenon of the frail materials to the radiation among the atomic power facilities using a gamma ray radiated from a spent nuclear fuel assembly, thereby it is possible to adjust a position of the spent nuclear fuel used for material test using a gamma ray radiated from a spent nuclear fuel and a test material, identify a distance between the spent nuclear fuel and the test material easily with a scale and evaluate the radiation effects on the materials used at facilities handling a spent nuclear fuel under the same situation as they are really exposed.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: March 11, 2014
    Assignees: Korea Hydro & Nuclear Power Co., Ltd., Korea Atomic Energy Research Institute
    Inventors: Il Je Cho, Eun Pyo Lee, Dong Hak Kook, Kie Chan Kwon, Won Kyung Lee, Jeong Hoe Ku, Won Myung Choung, Gil Sung You, Ji Sup Yoon
  • Patent number: 8251628
    Abstract: A joint tong apparatus for a radiation shielding facility. A spherical ball has a through-hole. An inner spherical socket and an outer spherical socket are installed in a hole formed in a partition between a radiation-shielded room and a control room so as to enclose the spherical ball on inner and outer sides. A bar is inserted and coupled into and to the through-hole of the spherical ball. An inner joint assembly has a first housing coupled to a shielded room-side end of the bar and a first pivot member pivotably mounted on a free end of the first housing. An outer joint assembly having a second housing coupled to a control room-side end of the bar and a second pivot member pivotably mounted on a free end of the second housing. The apparatus further includes a tong assembly, a handle assembly, a tong manipulation cable, and a pair of pivot manipulation cables.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: August 28, 2012
    Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., Ltd.
    Inventors: Eun Pyo Lee, Won Myung Choung, Dong Hee Hong, Jeong Hoe Ku, Won Kyung Lee, Il Je Cho, Dong Hak Kook, Kie Chan Kwon, Gil Sung You, Ji Sup Yoon
  • Patent number: 7995700
    Abstract: A rear door system for transferring hot cell equipment into or out of a hot cell is disclosed. The rear door system of the present invention includes a rear door, which is provided to a rear wall of the hot cell so as to be movable to open or close the rear wall of the hot cell, and a vertical moving table, which is provided at a predetermined position on the lower portion of the front surface of the rear door so as to be movable upwards or downwards. The rear door system further includes a drive unit, which is provided at a predetermined position in the lower end of the rear door to move the rear door, and a stationary working table, which is disposed above the vertical moving table and is fixed in the hot cell in a horizontal orientation. The rear door system further includes a removable table, which is removably coupled at a predetermined position to the stationary working table, and a hot cell crane hook and a service area crane hook, which are respectively provided inside and outside the hot cell.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: August 9, 2011
    Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., Ltd.
    Inventors: Eun Pyo Lee, Gil Sung You, Ji Sup Yoon, Won Myung Choung, Jeong Hoe Ku, Il Je Cho, Dong Hak Kook, Kie Chan Kwon, Won Kyung Lee
  • Publication number: 20100163746
    Abstract: The present invention relates to an irradiation device for material test using a gamma ray radiated from a spent nuclear fuel assembly and provides the irradiation device for material test using a gamma ray radiated from a spent nuclear fuel assembly wherein an irradiation device for material test to achieve a radiation effect evaluation is manufactured to be movable upward, downward and horizontally in order to study the hardening phenomenon of the frail materials to the radiation among the atomic power facilities using a gamma ray radiated from a spent nuclear fuel assembly, thereby it is possible to adjust a position of the spent nuclear fuel used for material test using a gamma ray radiated from a spent nuclear fuel and a test material, identify a distance between the spent nuclear fuel and the test material easily with a scale and evaluate the radiation effects on the materials used at facilities handling a spent nuclear fuel under the same situation as they are really exposed.
    Type: Application
    Filed: May 25, 2007
    Publication date: July 1, 2010
    Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KOREA HYDRO & NUCLEAR POWER CO. LTD.
    Inventors: Il Je CHO, Eun Pyo LEE, Dong Hak KOOK, Kie Chan KWON, Won Kyung LEE, Jeong Hoe KU, Won Myung CHOUNG, Gil Sung YOU, Ji Sup YOON
  • Publication number: 20090116606
    Abstract: A joint tong apparatus for a radiation shielding facility. A spherical ball has a through-hole. An inner spherical socket and an outer spherical socket are installed in a hole formed in a partition between a radiation-shielded room and a control room so as to enclose the spherical ball on inner and outer sides. A bar is inserted and coupled into and to the through-hole of the spherical ball. An inner joint assembly has a first housing coupled to a shielded room-side end of the bar and a first pivot member pivotably mounted on a free end of the first housing. An outer joint assembly having a second housing coupled to a control room-side end of the bar and a second pivot member pivotably mounted on a free end of the second housing. The apparatus further includes a tong assembly, a handle assembly, a tong manipulation cable, and a pair of pivot manipulation cables.
    Type: Application
    Filed: October 28, 2008
    Publication date: May 7, 2009
    Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KOREA HYDRO AND NUCLEAR POWER CO., LTD.
    Inventors: Eun Pyo LEE, Won Myung CHOUNG, Dong Hee HONG, Jeong Hoe KU, Won Kyung LEE, Il Je CHO, Dong Hak Kook, Kie Chan Kwon, Gil Sung You, Ji Sup Yoon
  • Publication number: 20080179551
    Abstract: A rear door system for transferring hot cell equipment into or out of a hot cell is disclosed. The rear door system of the present invention includes a rear door, which is provided to a rear wall of the hot cell so as to be movable to open or close the rear wall of the hot cell, and a vertical moving table, which is provided at a predetermined position on the lower portion of the front surface of the rear door so as to be movable upwards or downwards. The rear door system further includes a drive unit, which is provided at a predetermined position in the lower end of the rear door to move the rear door, and a stationary working table, which is disposed above the vertical moving table and is fixed in the hot cell in a horizontal orientation. The rear door system further includes a removable table, which is removably coupled at a predetermined position to the stationary working table, and a hot cell crane hook and a service area crane hook, which are respectively provided inside and outside the hot cell.
    Type: Application
    Filed: June 27, 2007
    Publication date: July 31, 2008
    Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KOREA HYDRO & NUCLEAR POWER CO., LTD.
    Inventors: Eun Pyo Lee, Gil Sung You, Ji Sup Yoon, Won Myung Choung, Jeong Hoe Ku, Il Je Cho, Dong Hak Kook, Kie Chan Kwon, Won Kyung Lee