US Patent Issued to IMERTECH on Jan. 20 for "Blast lance for gas blowing, its use and method of production" (German Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,521, issued on Jan. 20, was assigned to IMERTECH SAS (Paris).

"Blast lance for gas blowing, its use and method of production" was invented by Kai Hammes (Neuwied, Germany) and Daniel Hollricher (Klingelbach, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to blast lances for gas blowing in metallurgical processes, the blast lance comprising a cylindrical lance core and a refractory casing, wherein the said refractory casing comprises n+1 refractory tubular sections and n or more refractory annular structures, wherein each set of two neighbouring refractory tubular sections is connected via a refractory annular st...