ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,147, issued on June 10, was assigned to NHK SPRING Co. LTD. (Kanagawa, Japan).
"Die set apparatus" was invented by Sosuke Kurebayashi (Yokohama, Japan) and Naoki Iwamoto (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lift mechanism of a die set apparatus includes a guide pin, a linear motion guide member, a first washer, a second washer, a first coil spring, and a second coil spring. A first positioning portion and a second positioning portion control a first end turn portion and a second end turn portion from moving in a radial direction of the guide pin in a state where a first gap is formed between the first coil spring and the...