ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,683, issued on Feb. 24, was assigned to PAUL WURTH S.A. (Luxembourg).
"Coke oven roof repair or replacement" was invented by Marco Del Pia (Genoa, Italy), Cesare Laviosa (Cogoleto, Italy) and Ermanno Poggi (Genoa, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of repairing or replacing a roof of a coke oven battery in operation, said coke oven battery including a number of parallel coking chambers separated by heating walls and delimited on top by a ceiling, itself covered by a roof, the roof having for each coking chamber a number of charging holes or gas transfer holes above the coking chamber, a number of inspection holes above the...