Patents by Inventor Chorng Rong Shyr

Chorng Rong Shyr 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).

  • Caterpillar track shoe
    Patent number: 5730241
    Abstract: A caterpillar track shoe including a shoe having a plurality of screw holes in the sole; a caterpillar track type driving mechanism fastened to the screw holes of the shoe and controlled to move the shoe on a piece of land through a toe-controlled switch in the shoe and a selector switch on the base frame of the driving mechanism, the driving mechanism including a DC motor, a battery power supply, a caterpillar track assembly, and a gear box coupled between the DC motor and the drive wheel of the caterpillar track assembly.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: March 24, 1998
    Assignee: Chorng Rong Shyr
    Inventors: Chorng Rong Shyr, Ming Chon Cheng