Patents by Inventor Chang Heon SONG

Chang Heon SONG 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).

  • Apparatus and method for testing drilling efficiency of drill bit
    Patent number: 10041861
    Abstract: An apparatus and a method for testing drilling efficiency of a drill bit, according to the present invention, calculate an amount of fractured rock according to a button arrangement, thereby obtaining an optimum button arrangement.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: August 7, 2018
    Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Jung-Woo Cho, Dae-Young Shin, Jae-Wook Lee, Joo-Young Oh, Jin-Young Park, Ki-Beom Kwon, Chang-Heon Song
  • Drill bit including button array having different radii extending from center of head section
    Patent number: 10006252
    Abstract: A drill bit including a button array having different radii extending from the center of a head section, and more particularly, to a drill bit in which buttons are arranged so as to have different radii from the center of a drill bit head section, thereby striking bedrock points having different radii and improving the efficiency of a drilling operation.
    Type: Grant
    Filed: May 27, 2013
    Date of Patent: June 26, 2018
    Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Jung Woo Cho, Dae Young Shin, Jin Seok Yang, Kyoung Il Moon, Ki Beom Kwon, Chang Heon Song, Joo Young Oh
  • APPARATUS AND METHOD FOR TESTING DRILLING EFFICIENCY OF DRILL BIT
    Publication number: 20160320267
    Abstract: An apparatus and a method for testing drilling efficiency of a drill bit, according to the present invention, calculate an amount of fractured rock according to a button arrangement, thereby obtaining an optimum button arrangement.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 3, 2016
    Inventors: Jung-Woo CHO, Dae-Young SHIN, Jae-Wook LEE, Joo-Young OH, Jin-Young PARK, Ki-Beom KWON, Chang-Heon SONG
  • DRILL BIT INCLUDING BUTTON ARRAY HAVING DIFFERENT RADII EXTENDING FROM CENTER OF HEAD SECTION
    Publication number: 20150308198
    Abstract: A drill bit including a button array having different radii extending from the center of a head section, and more particularly, to a drill bit in which buttons are arranged so as to have different radii from the center of a drill bit head section, thereby striking bedrock points having different radii and improving the efficiency of a drilling operation.
    Type: Application
    Filed: May 27, 2013
    Publication date: October 29, 2015
    Inventors: Jung Woo CHO, Dae Young SHIN, Jin Seok YANG, Kyoung Il MOON, Ki Beom KWON, Chang Heon SONG, Joo Young OH