ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,924, issued on April 29, was assigned to HYUNJIN Co. LTD (Ansan-si, South Korea).
"Apparatus for manufacturing a double wall paper cup" was invented by Janghyun Park (Ansan-si, South Korea), Jinyang Jung (Ansan-si, South Korea), Hyunsung Jung (Ansan-si, South Korea) and Moonsoo Kim (Ansan-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for manufacturing a double wall paper cup is provided. The apparatus includes: a first rotation table configured to rotate intermittently on a horizontal rotating shaft; a plurality of slots for an outer cup part, each of which is installed at intervals of a first predetermined angular value...