Patents by Inventor Cheol-Soo Maeng

Cheol-Soo Maeng 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).

  • Secondary shutdown structure of nuclear reactor by using sliding doors
    Patent number: 11488732
    Abstract: Provided is a secondary shutdown structure of a nuclear reactor, which uses sliding doors, and more particularly, to a secondary shutdown structure of a nuclear reactor, which uses sliding doors and is capable of shutting down a nuclear reactor reliably with a simple structure without using a boric acid solution.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: November 1, 2022
    Assignee: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventors: Jin Seok Park, Myoung Goo Lee, Yeon Ho Cho, Hyunmin Kim, Cheol Soo Maeng, Hyeong Heon Kim, Byung Jin Lee, Chang Kyu Chung
  • Apparatus for detecting position of control rod
    Patent number: 10580538
    Abstract: An apparatus for detecting a position of a control rod includes a control rod driving shaft having an outer circumferential surface on which position information is marked, a mirror configured to reflect the position information, and a detector configured to detect a position of the control rod driving shaft from the position information reflected from the mirror, when the control rod driving shaft moves vertically.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 3, 2020
    Assignees: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC., KNU-INDUSTRY COOPERATION FOUNDATION
    Inventors: In Bae Chang, Dae Hee Lee, Sang Gyoon Jang, Myoung Goo Lee, Jin Seok Park, Yong Tae Jang, Chang Kyu Chung, Cheol Soo Maeng
  • SECONDARY SHUTDOWN STRUCTURE OF NUCLEAR REACTOR BY USING SLIDING DOORS
    Publication number: 20180277262
    Abstract: Provided is a secondary shutdown structure of a nuclear reactor, which uses sliding doors, and more particularly, to a secondary shutdown structure of a nuclear reactor, which uses sliding doors and is capable of shutting down a nuclear reactor reliably with a simple structure without using a boric acid solution.
    Type: Application
    Filed: March 23, 2018
    Publication date: September 27, 2018
    Inventors: Jin Seok PARK, Myoung Goo LEE, Yeon Ho CHO, Hyunmin KIM, Cheol Soo MAENG, Hyeong Heon KIM, Byung Jin LEE, Chang Kyu CHUNG
  • APPARATUS FOR DETECTING POSITION OF CONTROL ROD
    Publication number: 20170004893
    Abstract: An apparatus for detecting a position of a control rod includes a control rod driving shaft having an outer circumferential surface on which position information is marked, a mirror configured to reflect the position information, and a detector configured to detect a position of the control rod driving shaft from the position information reflected from the mirror, when the control rod driving shaft moves vertically.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 5, 2017
    Applicants: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC., KNU-INDUSTRY COOPERATION FOUNDATION
    Inventors: In Bae CHANG, Dae Hee LEE, Sang Gyoon JANG, Myoung Goo LEE, Jin Seok PARK, Yong Tae JANG, Chang Kyu CHUNG, Cheol Soo MAENG
  • Upper guide structure for simplification of refueling procedure in nuclear power plant
    Publication number: 20030012327
    Abstract: An upper guide structure for simplification of a refueling procedure in a nuclear power plant includes an upper guide cylinder inserted in an upper end portion of a core support barrel installed inside a nuclear reactor vessel to guide a control rod assembly, a support plate installed at a lower end of the upper guide cylinder and having a plurality of first control rod insertion holes formed therein, hollow control rod assembly upper guide tubes respectively installed in the first control rod insertion holes, and a nuclear fuel alignment plate installed at lower ends of the control rod assembly upper guide tubes and including a plurality of second control rod insertion holes formed at positions corresponding to the control rod assembly upper guide tubes, each of the second control rod insertion holes having an inner diameter which increases to an lower end thereof so that the nuclear fuel assembly guide rod is inserted even when a position alignment error of the nuclear fuel assembly is great, and first cool
    Type: Application
    Filed: July 10, 2002
    Publication date: January 16, 2003
    Inventors: Jeong-Ki Hwang, Dae-Heon Lim, Cheol-Soo Maeng, Min-Gyu Kim, Heuy-Gap Song, Jae-Hyun Bae, Sang-Gyoon Chang