ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,558, issued on Sept. 9, was assigned to Valmet Technologies Oy (Espoo, Finland).
"Blade segment for refiner" was invented by Marko Loijas (Valkeakoski, Finland), Tomi Iisakkila (Valkeakoski, Finland) and Hakan Sjostrom (Valkeakoski, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A blade segment (4, 8) for a refiner (1) for refining fibrous material has first (20) and second (21) end edges opposite one another in a direction of a longitudinal axis (LA) of the blade segment (4, 4a, 4b, 8, 8a, 8b), and first (22) and second (23) side edges which extend between the first end edge and the second end edge. The blade segment has a refining surface...