ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,179, issued on Oct. 27, was assigned to Techwin Co. Ltd. (Cheongju-si, South Korea).
"Powder material measuring rotary valve device" was invented by Sang Hong Lee (Cheongju-si, South Korea), In Seok Jung (Cheongju-si, South Korea), Eui Jip Choi (Cheongju-si, South Korea), Tai Yeon Kwon (Cheongju-si, South Korea) and Kyung Seob Lim (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a powder material measuring rotary valve device for quantitatively measuring and sequentially discharging a powder material in the form of powder mechanically. The powder material measuring rotary valve device comprises: a...