ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,472, issued on March 11.
"Mold core structure" was invented by Shun Fu Lin (Tainan, Taiwan) and Yu-Chang Su (Tainan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a mold core structure, which is arranged on a mold. The mold core structure includes a mold core body, which is a solid body made of three-dimensional printing, wherein one side of the mold core body is provided with a molding part, which is combined with an internal structure of the mold to form a cavity, there is a conformal air duct inside the mold core body, the conformal air duct has at least one main air duct and a plurality of secondary air ducts, the main air d...