ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,529, issued on Nov. 25, was assigned to Guangdong Qbill Industrial Co. Ltd. (Foshan, China).
"Rotary locking structure and foldable fan" was invented by Shengquan Liang (Foshan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a rotary locking structure and a foldable fan. The rotary locking structure, comprising a rotating seat, a fixed seat, a fixed lining ring, an elastic lining ring and a rotating rod, wherein one end of the rotating seat is provided with a first socket cylinder, the fixed seat is provided with a sleeve, and one end of the sleeve is fixedly connected to a second socket cylinder; the rotating rod comprises a rod ...