ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,776, issued on Oct. 27.
"Turner apparatus" was invented by Jinyan Duan (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A turner apparatus includes: a frame body and a rotor mechanism. The frame body includes: a first moving member, a second moving member, and a fastening module. The first moving member includes a substantially ring-shape first rolling surface. The second moving member includes a substantially ring-shape second rolling surface disposed opposite to the first rolling surface. The fastening module is arranged on at least one of the first moving member and the second moving member and fastened with the other one of the fi...