Patents by Inventor Young Geun Chun

Young Geun Chun 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).

  • Tip changer for spot welding machine
    Patent number: 10427240
    Abstract: A tip changer for a spot welding machine includes a first rotation body that has an opening capable of accommodating a welding tip and is capable of rotating around the opening; a second rotation body that is disposed concentrically with the first rotation body and is rotated relative to the first rotation body; and a plurality of nail pieces that are disposed at equal angular intervals along an imaginary circle of the rotation bodies, are swingably connected to the first rotation body by a first connection mechanism, are swingably connected to the second rotation body by a second connection mechanism on a more radially inner side of the second rotation body than the first connection mechanism, and include contact portions on a more radially inner side of the second rotation body than a second connection mechanism.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: October 1, 2019
    Assignee: OBARA KOREA CORPORATION
    Inventors: Jae Woo Choi, Young Geun Chun, Kyung Hwa Kwak, Seung Woo Park, Seung Jin Oh, Do Seok Yun
  • TIP CHANGER FOR SPOT WELDING MACHINE
    Publication number: 20180099348
    Abstract: A tip changer for a spot welding machine includes a first rotation body that has an opening capable of accommodating a welding tip and is capable of rotating around the opening; a second rotation body that is disposed concentrically with the first rotation body and is rotated relative to the first rotation body; and a plurality of nail pieces that are disposed at equal angular intervals along an imaginary circle of the rotation bodies, are swingably connected to the first rotation body by a first connection mechanism, are swingably connected to the second rotation body by a second connection mechanism on a more radially inner side of the second rotation body than the first connection mechanism, and include contact portions on a more radially inner side of the second rotation body than a second connection mechanism.
    Type: Application
    Filed: January 19, 2017
    Publication date: April 12, 2018
    Inventors: Jae Woo Choi, Young Geun Chun, Kyung Hwa Kwak, Seung Woo Park, Seung Jin Oh, Do Seok Yun