ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,983, issued on March 11, was assigned to SUMITOMO SHI FW ENERGIA OY (Espoo, Fla.).
"Arrangement for recycling mineral wool waste to mineral wool production" was invented by Martin Slotte (Espoo, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of and an arrangement for recycling mineral wool waste to mineral wool production includes at least one melting furnace for melting virgin mineral wool raw material, the melting furnace including an inlet for virgin mineral wool raw material and an outlet for molten mineral wool material, a production line connected to the outlet for molten mineral wool material for producing a mineral wool pro...