ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,653, issued on March 11, was assigned to GUANGDONG ZHAOQING L&V Co. LTD. (Guangdong, China).
"Transmission gear box" was invented by Yuan Jiang (Guangdong, China), Huoming Li (Guangdong, China) and Xianghuai Qiu (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transmission gear box includes a cylindrical box body defining a cavity for gears and an end cover fixed on at least one axially opened end of the cavity of the box body. A fitting structure includes an inner fitting surface located on a surface of one of the box body and the end cover and an outer fitting surface located on a surface of the other one of the box body and the...