ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,008, issued on Feb. 3, was assigned to ZHEJIANG PRULDE ELECTRIC APPLIANCE Co. LTD. (Jinhua, China).
"Bidirectional-spin cleaning structure" was invented by Weiming Yang (Jinhua, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a bidirectional-spin cleaning structure which relates to cleaning equipment, including an inner-race cleaning disc and an outer-race cleaning disc, the inner-race cleaning disc is surrounded by the outer-race cleaning disc, an inner shaft is vertically fixed on the inner-race cleaning disc, an inner-race gear is mounted on the inner shaft, an outer shaft configured like a circular tube and rotatable about a cen...