US Patent Issued to Yantai University on Sept. 30 for "Adjustable strand threading and lubricating device for prefabricated box girders" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,257, issued on Sept. 30, was assigned to Yantai University (Yantai, China).

"Adjustable strand threading and lubricating device for prefabricated box girders" was invented by Bo Liu (Yantai, China), Ruixi Yuan (Yantai, China), Peizhi Gong (Yantai, China), Zhenyang Huang (Yantai, China), Chunfei Zhang (Yantai, China), Shaohua Lai (Yantai, China) and Jinlong Fu (Yantai, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An adjustable strand threading and lubricating device for prefabricated box girders includes an underframe. Multiple first spline shafts are rotatably installed between left and right side walls of the strand threading boxes. The fi...