US Patent Issued to POLY CHANGDA ENGINEERING on Jan. 13 for "Bridge sliding device and a bridge construction system" (Chinese Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,990, issued on Jan. 13, was assigned to POLY CHANGDA ENGINEERING Co. LTD. (Guangdong, China).

"Bridge sliding device and a bridge construction system" was invented by He Jin (Guangzhou, China), Yuxian Wu (Guangzhou, China), Qicai Zhao (Guangzhou, China), Xudong Wu (Guangzhou, China), Shengquan Yan (Guangzhou, China), Chenghong Liu (Guangzhou, China), Biao Guo (Guangzhou, China), Duo Zou (Guangzhou, China) and Xi Jia (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bridge sliding device includes a slide rail assembly, a first sliding component on the rail, and a second sliding component on the first. The second component locks at th...