ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,331, issued on March 11, was assigned to TSUDAKOMA KOGYO K.K. (Ishikawa-Ken, Japan).
"Weft insertion method and weft insertion device for air jet loom" was invented by Keiichi Myogi (Ishikawa-ken, Japan), Kazuya Yama (Ishikawa-ken, Japan) and Toshiya Taima (Ishikawa-ken, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A weft insertion device includes a first main nozzle and a second main nozzle that is arranged upstream from the first main nozzle in a weft insertion direction and is configured to function as an auxiliary main nozzle. The first main nozzle is connectable to a first valve device by a first piping. The second main nozzle is conne...