Patents by Inventor Hyo Jik Lee

Hyo Jik 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: 8550267
    Abstract: Disclosed herein is an apparatus for cable management synchronized with telescopic motion. The apparatus is configured such that cables for transmitting power or signals to a manipulator provided on a lower end of a telescopic tube and for receiving signals therefrom are wound or unwound in response to expansion or contraction of the telescopic tube. Moreover, the apparatus is configured such that the cables are prevented from being displaced from the correct positions, a noise is prevented from being generated, and the tension of each cable is adjusted even when it is in the clamped state.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: October 8, 2013
    Assignees: Korea Atomic Energy Research Institute, Korea Hydro and Nuclear Power Co., Ltd.
    Inventors: Hyo Jik Lee, Kiho Kim, Jong Kwang Lee, Byung-Suk Park, Ho Dong Kim
  • Patent number: 8231096
    Abstract: A telescopic tube set for a bridge transport system is disclosed. The telescopic tube set includes cylindrical tubes each having an upper end, at which an upper ring is mounted, and a lower end, at which a lower ring is mounted, the cylindrical tubes having different diameters, pulleys mounted to respective inner wall surfaces of a part of the tubes, and extension/retraction lines each having an end connected to the upper ring of a corresponding one of the tubes, and an opposite end connected to the upper ring of another corresponding one of the tubes while extending around the pulley mounted to the tube interposed between the corresponding tubes. A plurality of bearings are installed at the lower ring to guide the tube, at which the lower ring is mounted, such that the tube extends or retracts straight in a longitudinal direction.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: July 31, 2012
    Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., Ltd
    Inventors: Hyo Jik Lee, Byung Suk Park, Jong Kwang Lee, Ki Ho Kim
  • Patent number: 8211372
    Abstract: An apparatus and system for separating remaining powder of hulls includes a first remaining powder separating unit to be supplied with hulls of a spent nuclear fuel subjected to a high-temperature oxidation, and to include a first brush for separating remaining powder of the hulls; a hull alignment unit to be supplied with the hulls from the first remaining powder separating unit, and to align the hulls; a second remaining powder separating unit to be supplied with the aligned hulls from the hull alignment unit, and to include a second brush for separating remaining powder adhered on an inner peripheral surface of the hulls; and a third remaining powder separating unit to be supplied with the hulls from the second remaining powder separating unit, and to separate the remaining powder remaining on the inner/outer peripheral surface of the hulls by using air.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: July 3, 2012
    Assignees: Korea Hydro & Nuclear Power Co., Ltd., Korea Atomic Energy Research Institute
    Inventors: Jae-Hoo Jung, Young-Hwan Kim, Byung-Suk Park, Ki Ho Kim, Ji Sup Yoon, Sung-Hyun Kim, Hyo Jik Lee
  • Publication number: 20120153091
    Abstract: Disclosed herein is an apparatus for cable management synchronized with telescopic motion. The apparatus is configured such that cables for transmitting power or signals to a manipulator provided on a lower end of a telescopic tube and for receiving signals therefrom are wound or unwound in response to expansion or contraction of the telescopic tube. Moreover, the apparatus is configured such that the cables are prevented from being displaced from the correct positions, a noise is prevented from being generated, and the tension of each cable is adjusted even when it is in the clamped state.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 21, 2012
    Applicants: KOREA HYDRO AND NUCLEAR POWER CO., LTD., KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Hyo Jik Lee, Kiho Kim, Jong Kwang Lee, Byung-Suk Park, Ho Dong Kim
  • Patent number: 8083460
    Abstract: The present invention discloses a cable-driven manipulator comprising an operating unit having a drive motor, and a pulley rotated by the drive motor. An upper arm is coupled, through a joint, to one side of the operating unit. A forearm coupled, through a joint, to the other side of the upper arm by the cable. A gripper of an end effector operably coupled to the forearm, a cable compensation device is installed between the upper arm and the forearm so as to maintain constant the length of the cable that transmits the power of the operating unit to the end effector during the pivoting of the forearm. It is thus possible to prevent the variation of tensile force due to the variation of the length of the cable for operating the end effector during the pivoting of the forearm or the unintended malfunction of the end effector.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: December 27, 2011
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Jong Kwang Lee, Chang Hwan Choi, Kwang Ho Yoon, Hyo Jik Lee, Byung Suk Park, Ji Sup Yoon
  • Publication number: 20110240817
    Abstract: A telescopic tube set for a bridge transport system is disclosed. The telescopic tube set includes cylindrical tubes each having an upper end, at which an upper ring is mounted, and a lower end, at which a lower ring is mounted, the cylindrical tubes having different diameters, pulleys mounted to respective inner wall surfaces of a part of the tubes, and extension/retraction lines each having an end connected to the upper ring of a corresponding one of the tubes, and an opposite end connected to the upper ring of another corresponding one of the tubes while extending around the pulley mounted to the tube interposed between the corresponding tubes. A plurality of bearings are installed at the lower ring to guide the tube, at which the lower ring is mounted, such that the tube extends or retracts straight in a longitudinal direction.
    Type: Application
    Filed: January 31, 2011
    Publication date: October 6, 2011
    Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KOREA HYDRO & NUCLEAR POWER CO., LTD
    Inventors: Hyo Jik LEE, Byung Suk PARK, Jong Kwang LEE, Ki Ho KIM
  • Patent number: 7794171
    Abstract: A system applicable to a bridge transporter telescopic servomanipulator, is provided. The bridge transporter telescopic servomanipulator is used for performing operation and maintenance of process equipments in a working environment having a possibility of radiation exposure. The system can be coupled/decoupled by including a coupling device in a telescopic transfer device and a servomanipulator, and can manipulate an ascending/descending device of the servomanipulator in a remote area without direct access by a worker. The coupling/decoupling device includes a first coupling plate and a second coupling plate, the first coupling plate being provided on a lower portion of the telescopic transfer device, and the second coupling plate being provided on an upper portion of the servomanipulator.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: September 14, 2010
    Assignees: Korea Atomic Energy Research Institute, Korea Hydo & Nuclear Power Co., Ltd.
    Inventors: Byung Suk Park, Jong Kwang Lee, Hyo Jik Lee, Dong Hee Hong, Ji Sup Yoon
  • Publication number: 20090148263
    Abstract: The present invention discloses a cable-driven manipulator comprising an operating unit having a drive motor, and a pulley rotated by the drive motor. An upper arm is coupled, through a joint, to one side of the operating unit. A forearm coupled, through a joint, to the other side of the upper arm by the cable. A gripper of an end effector operably coupled to the forearm, a cable compensation device is installed between the upper arm and the forearm so as to maintain constant the length of the cable that transmits the power of the operating unit to the end effector during the pivoting of the forearm. It is thus possible to prevent the variation of tensile force due to the variation of the length of the cable for operating the end effector during the pivoting of the forearm or the unintended malfunction of the end effector.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 11, 2009
    Applicant: Korea Atomic Energy Research Institute
    Inventors: Jong Kwang Lee, Chang Hwan Choi, Kwang Ho Yoon, Hyo Jik Lee, Byung Suk Park, Ji Sup Yoon
  • Publication number: 20080042432
    Abstract: A system applicable to a bridge transporter telescopic servomanipulator, is provided. The bridge transporter telescopic servomanipulator is used for performing operation and maintenance of process equipments in a working environment having a possibility of radiation exposure. The system can be coupled/decoupled by including a coupling device in a telescopic transfer device and a servomanipulator, and can manipulate an ascending/descending device of the servomanipulator in a remote area without direct access by a worker. The coupling/decoupling device includes a first coupling plate and a second coupling plate, the first coupling plate being provided on a lower portion of the telescopic transfer device, and the second coupling plate being provided on an upper portion of the servomanipulator.
    Type: Application
    Filed: June 28, 2007
    Publication date: February 21, 2008
    Applicants: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co. Ltd
    Inventors: Byung Suk Park, Jong Kwang Lee, Hyo Jik Lee, Dong Hee Hong, Ji Sup Yoon