Patents by Inventor Leonardo Cruz Arantes Campos

Leonardo Cruz Arantes Campos has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • LANCE FOR TOP INJECTION IN METALLURGICAL VESSELS AND METHOD FOR THE PRODUCTION OF SAID LANCE
    Publication number: 20150315664
    Abstract: A lance for top injection in metallurgical vessels is used essentially for the refining process of pig iron and steel production. The lance has at least one inner tube and a cover of refractory concrete. The external profile of the cover of refractory concrete is polygonal. Also described is a method for the production of said lance.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 5, 2015
    Applicant: MAGNESITA REFRATARIOS S/A
    Inventors: Rubens Alves Freire, Leonardo Cruz Arantes Campos, Jorge Lima De Siqueira, Victor Guarnier Domiciano
  • COOLED LANCE FOR INJECTING INTO A METALLURGICAL VESSEL
    Publication number: 20140291902
    Abstract: A cooled lance for injection into metallurgical vessels, comprises an inner tube or pipe, with an inlet for gas at the upper part of the injection lance and outlets for the gas at the lower part, and at least one outer tube or pipe that forms a cooling jacket with the inner tube or pipe, wherein the inner tube or pipe is fixed at only one point at said at least one outer tube or pipe and the gas flow takes place only through the cooling jacket formed between the inner tube or pipe and the outer tube or pipe.
    Type: Application
    Filed: May 10, 2012
    Publication date: October 2, 2014
    Applicant: MAGNESITA REFRATARIOS S/A
    Inventors: Rubens Alves Freire, Leonardo Cruz Arantes Campos, Jorge Lima De Siqueira