ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,824, issued on Dec. 30, was assigned to ANDRITZ (China) Ltd. (Guangdong, China).
"Pulp screening machine" was invented by Alexander Gscheider (Hohentauern, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pulp screening machine has screen extending upward from the bottom of the pulp screening machine and a rotor which rotates around the outside of the screen. An accept outlet is provided inside the screen and a pulp outlet and reject outlet are provided outside of the screen. The rotor vanes of the rotor are cantilevered from the rotor base on top of the screen into the region of the screen, with the rotor vanes not being connected to each o...