Patents by Inventor Chung-Chul Lee

Chung-Chul Lee 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).

  • Publication number: 20220314720
    Abstract: An amphibious caterpillar vehicle includes a central body of a second buoyancy material of a track shoe is disposed between a pair of wheels. An engagement body of the second buoyancy material of the track shoe is inserted into a buoyancy material engagement groove of each of the wheels so that a driving force is transferred from a driving sprocket to a caterpillar track. A coupling force between driving sprockets and track shoes forming a caterpillar track increases so that the caterpillar track is able to stably receive the driving force without slipping from the driving sprockets.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 6, 2022
    Inventor: Chung Chul LEE
  • Patent number: 10183711
    Abstract: The present invention provides an amphibious caterpillar track shoe, which has a novel structure and has greater buoyancy while increasing the durability of the track shoe by means of a foam buoyant member and a fixing frame, and has webbed protruding parts capable of improving the movement speed of a track vehicle on water.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: January 22, 2019
    Inventor: Chung Chul Lee
  • Publication number: 20180170465
    Abstract: The present invention provides an amphibious caterpillar track shoe, which has a novel structure and has greater buoyancy while increasing the durability of the track shoe by means of a foam buoyant member and a fixing frame, and has webbed protruding parts capable of improving the movement speed of a track vehicle on water.
    Type: Application
    Filed: June 1, 2016
    Publication date: June 21, 2018
    Inventor: Chung Chul LEE
  • Publication number: 20040239182
    Abstract: The present invention provides a track-shoe of an amphibious caterpillar vehicle and more particularly, a track-shoe of an amphibious caterpillar vehicle with mobility on land and water, which comprises a space inside the track-shoe for conferring buoyancy to the track-shoe while simultaneously forming an arc-shaped groove for pushing out water at the frontal side of the track-shoe.
    Type: Application
    Filed: July 13, 2004
    Publication date: December 2, 2004
    Inventor: Chung-Chul Lee