ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,891, issued on Oct. 14, was assigned to Refractory Intellectual Property GmbH & Co. KG (Vienna).
"Refractory casting nozzle for a changing device arranged at the outlet of a metallurgical vessel" was invented by Rubens Alves Freire (Belo Horizonte, Brazil), Fabricio Junior Silva (Contagem, Brazil), Danilo Cunha Martins (Belo Horizonte, Brazil) and Rodrigo Donizete Turqueti Pedrozo (Belo Horizonte, Brazil).
According to the abstract* released by the U.S. Patent & Trademark Office: "Refractory casting nozzle for a changing device arranged at the outlet of a metallurgical vessel is provided with a top side refractory plate, which is provided with an abutting surface at each of two o...