ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,466, issued on Dec. 2, was assigned to Harbin Institute of Technology (Harbin, China).
"Apparatus and method for deep drawing of large-sized thin-wall curved surface parts with servo reverse bulging" was invented by Shijian Yuan (Harbin, China) and Wei Liu (Harbin, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an apparatus and a method for deep drawing of large-sized thin-wall curved surface parts with servo reverse bulging, which pertain to the technical field of drawing of a thin-wall curved surface part. The apparatus includes a forming die, a jacking unit, and a power unit, wherein the forming die includes an upper die, a low...