ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,872, issued on March 3, was assigned to JINWOONG TECHNOLOGY Co. LTD. (Hwaseong-si, South Korea).
"Pocket flange forming device for duct" was invented by Kyu-seok Cha (Seoul, South Korea) and Seok Heo (Goyang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosure is a pocket flange forming device for a duct. When a plate enters a forming molding unit provided at the opposite sides of the forming device while being seated on a transfer unit, pocket flanges serving as duct connecting portion are formed on longitudinal edges on the opposite sides of the plate through the forming-molding method such as bending, folding, and compressing...