ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,763, issued on Dec. 16, was assigned to Yachiyo Industry Co. Ltd. (Saitama, Japan).

"Blow molding device and manufacturing method of resin liner for pressure vessel using the same" was invented by Kazuhiro Nakamura (Saitama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "To suppress the degradation of sealing property of a pressure vessel and the deterioration of a sealing member, and to reduce the workload and cost of manufacture, a blow molding device includes a pair of molds configured to be clamped to sandwich a parison from both lateral sides, and a blow pin configured to form a neck portion together with the molds. The blow pin includes ...