Patents by Inventor Yong Jae Choi

Yong Jae Choi 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).

  • Elastic crawler
    Patent number: 6422666
    Abstract: The present invention provides an elastic crawler having an improved flexing properties in which arrangement of lugs are improved so as to prevent deterioration of the flexing properties due to rigidity of a crawler body increased by providing lugs. The crawler includes a crawler body 2, a plurality of core members 3 having right and left wings 3R, 3L, respectively, and provided in the crawler body laterally with respect to the crawler and in parallel to each other with a space therebetween in the longitudinal direction of the crawler, and a plurality of right and left lugs including small lugs provided correspondingly to one of the wings 3R or 3L and large lugs provided correspondingly to two of the wings 3R or 3L adjacent to each other in the longitudinal direction of the crawler.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: July 23, 2002
    Assignee: Taeryuk Rubber Belt Co., Ltd.
    Inventor: Yong Jae Choi
  • Elastic crawler
    Publication number: 20010054845
    Abstract: The present invention provides an elastic crawler having an improved flexing properties in which arrangement of lugs are improved so as to prevent deterioration of the flexing properties due to rigidity of a crawler body increased by providing lugs.
    Type: Application
    Filed: May 15, 2001
    Publication date: December 27, 2001
    Inventor: Yong Jae Choi