US Patent Issued to ArcelorMittal on Nov. 3 for "Device to inject a reducing gas into a shaft furnace" (French Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,294, issued on Nov. 3, was assigned to ArcelorMittal (Luxembourg).

"Device to inject a reducing gas into a shaft furnace" was invented by Edouard Izard (Saint Julien les Metz, France), Dominique Sert (Montoy Flanville, France) and Jerome Daulmerie (Dunkirk, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device to inject a reducing gas into a shaft furnace includes an external casing whose front face is provided with an outlet for gas injection into the shaft furnace, an internal casing located inside the external casing wherein reducing gas is circulating. The internal casing has an opening matching the gas injection outlet of the front face...