US Patent Issued to NATIONAL RESEARCH COUNCIL OF CANADA on March 24 for "Refractory lance assembly and refractory lance tube" (Canadian Inventors)

ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,862, issued on March 24, was assigned to NATIONAL RESEARCH COUNCIL OF CANADA (Ottawa).

"Refractory lance assembly and refractory lance tube" was invented by Andre Moreau (Saint-Bruno-de-Montarville, Canada), Andre Hamel (Saint-Hubert, Canada) and Mohamad Sabsabi (Longueuil, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described are various embodiments of a refractory lance assembly and a composite refractory lance. In one embodiment, a refractory lance assembly is provided that comprises: an immersion tube having an immersion tip immersible within a melt and an extension tube coupled at an opposed end thereof to form a longitudinally exten...