ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,081, issued on Jan. 27, was assigned to Hangzhou Juxing Intelligent Technology Co. Ltd. (Hangzhou, China).
"Detachable fan" was invented by Hongbing Zheng (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A detachable fan is provided. The fan includes a motor provided with a main shaft extending axially, fan blade assemblies including blade portions circumferentially assembled to enclose a complete circular fan and sleeve portions, and a retaining cap fixed to a top end of the main shaft and in contact with top end surfaces of the sleeve portions to restrict upward movement of the fan blade assemblies along the main shaft. A blocking m...