ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,065, issued on Feb. 10, was assigned to SUZHOU TRUERUN ENVVIRONMENT TECHNOLOGY LTD. (Jiangsu, China).
"Surface seamless steel rail" was invented by Shoulian Zhu (Jacksonville, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A surface-seamless steel rail is provided in the present invention. Said surface-seamless steel rail includes a right connecting part located on one side of said steel rail, a left connecting part located on the other side of said steel rail, and a seamless spring piece located on the top side of said steel rail. Both said left connecting part and said right connecting part include a plug portion in embedded engagement with e...