ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,203, issued on March 4, was assigned to Valmet Technologies Oy (Espoo, Finland).
"Blade segment for refiner" was invented by Marko Loijas (Valkeakoski, Finland) and Matti Kaarineve (Valkeakoski, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A blade segment (4, 4a, 4b, 8, 8a, 8b) for a refiner (1) for refining fibrous material has first (20) and second (21) end edges and first (22) and second (23) side edges, the first (22) and second (23) side edges extending between the first (20) and second (21) end edges. The segment has a refining surface (5, 9) with blade bars (27) and grooves (28) on the segment front surface (25). At least one openin...