ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,671, issued on Sept. 8, was assigned to UNIK WORLD INDUSTRIAL Co. LTD. (Tainan City, Taiwan).
"Air compressor structure" was invented by Wen San Chou (Tainan City, Taiwan) and Cheng Hsien Chou (Tainan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an air compressor structure, including a cylinder, a piston, a cover, and an anti-return piece. The cylinder has multiple air holes. The piston is reciprocally coupled in the cylinder. The cover is assembled to the cylinder and has a column. Internal spaces of the cylinder and the cover are connected through the air holes. The anti-return piece is movably disposed between the cyli...