ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,576, issued on Sept. 8, was assigned to FANUC Corp. (Yamanashi, Japan).
"Injection device" was invented by Kyousuke Nakamura (Minamitsuru-gun, Japan) and Akira Oomori (Minamitsuru-gun, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An injection device comprises: a plunger provided inside a barrel and a nozzle; a seal provided rearward of an injection inlet for the nozzle to prevent a molding material from flowing rearward; and a seal case that holds the seal. The seal case is fixed by the barrel and the nozzle, and has a first inner radial surface that forms a first inner radial hollow section for the plunger to penetrate, and a second inner r...