Patents by Inventor Woo-Jong Bong

Woo-Jong Bong 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).

  • Electronic gearshift apparatus of sub gearshift for 4 wheel drive vehicle
    Patent number: 7240577
    Abstract: An electronic gearshift device of a transfer case assembly for a four wheel drive vehicle is provided. The electric gearshift device comprises a motor, a camshaft rotatably driven by the motor, a rail member separated from the camshaft by a predetermined distance and positioned parallel to the camshaft; first and second forks installed on the rail member such that they are spaced apart from each other, and a cam fitted around and supported by the camshaft to selectively operate the first or second forks on the rail member to thereby effect gearshift.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: July 10, 2007
    Assignee: Dymos Incorporated
    Inventors: Min-Sik Choi, Young-Soo Kim, Woo-Jong Bong
  • Electronic gearshift apparatus of sub gearshift for 4 wheel drive vehicle
    Publication number: 20060096402
    Abstract: An electronic gearshift device of a transfer case assembly for a four wheel drive vehicle is provided. The electric gearshift device comprises a motor, a camshaft rotatably driven by the motor, a rail member separated from the camshaft by a predetermined distance and positioned parallel to the camshaft; first and second forks installed on the rail member such that they are spaced apart from each other, and a cam fitted around and supported by the camshaft to selectively operate the first or second forks on the rail member to thereby effect gearshift.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 11, 2006
    Inventors: Min-Sik Choi, Young-Soo Kim, Woo-Jong Bong