ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,652, issued on Nov. 25, was assigned to HEBE EVEREST INSTRUMENT EQUIPMENT Co. LTD (Handan, China).

"Storage tank inner wall and floating disc totally enclosed apparatus" was invented by Botao Li (Handan, China), Jingyan Li (Handan, China) and Zhixue Wang (Handan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A storage tank inner wall and floating disc totally enclosed apparatus includes a tank body, floating disc, pressure relief balance structure and a flexible sealing body structure, wherein the floating disc is arranged in the tank body, the edge of the floating disc is provided with an outer frame, the outer frame is provided with a plura...