ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,393, issued on Oct. 21.
"Pool table capable of avoiding ball bounce" was invented by Yuanxu Qiao (Qinhuangdao, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pool table capable of avoiding ball bounce, including a playing field and a rail structure mounted along an edge thereof. The rail structure includes a steel rail and a rubber strip mounted at an inner side thereof. A ratio of height difference H between top surfaces of the rubber strip and the playing field to diameter D of a billiard ball is 0.68-0.74. A position of the rubber strip in contact with the billiard ball is configured as a striking point. A coordinate system is established...