Patents by Inventor Yun-Hyuk Kwon

Yun-Hyuk 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).

  • Breaker for providing successive trip mechanism based on PTC current-limiting device
    Patent number: 7141751
    Abstract: Disclosed is a breaker for providing successive trip mechanism based on PTC current-limiting device, which includes a first switch having first fixed/movable contact points; a second switch having second fixed/movable contact and connected to the first switch in parallel; PTC current-limiting device connected to the first and second switches in parallel or series and allowing a change of current flow direction from the first switch to the second switch at a fault current; a movable arm to which the movable contact points are installed at an interval therebetween and opening/closing the switches by operating the movable contact points; a fixed arm including first and second fixed arm conductors for guiding current flow toward the first fixed contact point in a normal load current mode and guiding current flow toward the second fixed contact point via the PTC current-limiting device in a fault current mode; and a successive trip means for elastically biasing the second switch by operation of the movable arm in
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: November 28, 2006
    Assignee: LS Cable Ltd.
    Inventors: Jong-Sung Kang, Yun-Hyuk Kwon, Seok-Hyun Nam, Bang-Wook Lee, Won-Joon Choi
  • Breaker for providing successive trip mechanism based on PTC current-limiting device
    Publication number: 20060186090
    Abstract: Disclosed is a breaker for providing successive trip mechanism based on PTC current-limiting device, which includes a first switch having first fixed/movable contact points; a second switch having second fixed/movable contact and connected to the first switch in parallel; PTC current-limiting device connected to the first and second switches in parallel or series and allowing a change of current flow direction from the first switch to the second switch at a fault current; a movable arm to which the movable contact points are installed at an interval therebetween and opening/closing the switches by operating the movable contact points; a fixed arm including first and second fixed arm conductors for guiding current flow toward the first fixed contact point in a normal load current mode and guiding current flow toward the second fixed contact point via the PTC current-limiting device in a fault current mode; and a successive trip means for elastically biasing the second switch by operation of the movable arm in
    Type: Application
    Filed: February 17, 2006
    Publication date: August 24, 2006
    Inventors: Jong-Sung Kang, Yun-Hyuk Kwon, Seok-Hyun Nam, Bang-Wook Lee, Won-Joon Choi