ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,484,753, issued on Dec. 2, was assigned to NINGBO FUJIA INDUSTRIAL Co. LTD. (Ningbo, China).
"Liftable and rotatable mop structure and cleaning machine" was invented by Jianqiang Fang (Zhejiang, China) and Xu Wang (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liftable and rotatable mop structure and a cleaning machine are provided. The liftable and rotatable mop structure includes a mop unit which includes a mop, a turntable and a rotatable shaft, wherein the mop is connected with the turntable, and the rotatable shaft is connected with the turntable; the rotatable shaft functions to lift the turntable and drive the turntable to rotat...