ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,322, issued on June 3, was assigned to CRRC QINGDAO SIFANG Co. LTD. (Qingdao, China).
"Bogie framework of rail vehicle and bogie" was invented by Wei Zhao (Qingdao, China), Yuejun Zhang (Qingdao, China), Haitao Hu (Qingdao, China), Shaoshuai Liu (Qingdao, China) and Shuliang Song (Qingdao, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a bogie framework of a rail vehicle and a bogie, wherein the bogie framework of the rail vehicle includes a first end beam (01), a second end beam (02) and a box beam disposed between the first end beam (01) and the second end beam (02). The box beam includes a primary gearbox (1) and a secondary gea...