ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,493, issued on March 24, was assigned to GD MIDEA ENVIRONMENT APPLIANCES MFG Co. LTD. (Zhongshan, China).
"Fan blade and air supply device" was invented by Lai Wei (Zhongshan, China), Ruixiang Kang (Zhongshan, China), Dan Luo (Zhongshan, China), Wenkang Pan (Zhongshan, China) and Sijin Ye (Zhongshan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fan blade includes a hub and a blade connected to a circumferential side face of the hub. The blade presents a circular shape, the inner annular surface of the blade encloses a hollow area. In the radial direction of the hub, an end of the blade connected to the hub is the root part of the blade. I...