ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,383, issued on Jan. 20, was assigned to JOININ GLOBAL PTE. LTD. (Singapore).
"Bladeless fan" was invented by Hongbing Zheng (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bladeless fan includes a housing body and an axial flow impeller detachably connected within the housing body. Centers of the housing body and axial flow impeller are located on the same central axis. The axial flow impeller includes a fan blade support plate and multiple axial flow fan blades fixed on the fan blade support plate. The axial flow fan blades include at least two different kinds of inner fan blades and outer fan blades. Integrally formed fan blades ...