US Patent Issued to Rockwool on May 12 for "Method of preparing a melt for the production of man-made mineral fibres" (Danish Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,943, issued on May 12, was assigned to Rockwool A/S (Hedehusene, Denmark).

"Method of preparing a melt for the production of man-made mineral fibres" was invented by Lars Elmekilde Hansen (Hedehusene, Denmark) and Haosheng Zhou (Hedehusene, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method of preparing a mineral melt in a cupola furnace that uses at least one plasma torch to provide heat energy to the furnace. The plasma torch uses nitrogen, carbon monoxide, carbon dioxide, or a mixture thereof as the carrier gas. The invention also relates to a cupola furnace for the preparation of the mineral melt, and the use...