Patents by Inventor Jean Brancaz

Jean Brancaz 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).

  • Nozzle for an oxygen injection lance for decarburization of pig iron and use for the decarburization of chromium containing pig iron
    Patent number: 4455166
    Abstract: A nozzle is disclosed for use in the decarburization of molten pig iron by means of a jet of oxygen from a lance provided with such nozzle. The nozzle according to the invention is characterized by a divergent portion which, beyond the neck, has a frustoconical part, with an apex angle of between 60.degree. and 70.degree. and preferably between 62.degree. and 66.degree., and wherein an angle of 65.degree. is preferred. The nozzle according to the invention can be used in particular for the decarburization of chromium containing pig iron and makes it possible to achieve very high chromium and iron yields.
    Type: Grant
    Filed: August 14, 1981
    Date of Patent: June 19, 1984
    Assignee: Ugine Aciers
    Inventors: Jean Brancaz, Georges Marizy