ALEXANDRIA, Va., May 1 -- United States Patent no. 11,970,226, issued on April 30.
"Elastic crawler" was invented by Yong Jae Choi (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An elastic crawler capable of effectively preventing an occurrence of vibration, noise and cracks during driving while improving durability is provided. The elastic crawler includes a coupling portion arranged at equal intervals in a circumferential direction at a center in a left and right direction of a crawler body, a steel core arranged in the left and right direction between adjacent coupling portions in the circumferential direction of the crawler body, and two rows of left and right lugs installed on an o...