Patents by Inventor Boris Donnay

Boris Donnay 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).

  • STEEL SECTION HAVING A THICKNESS OF AT LEAST 100MM AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20200340073
    Abstract: A steel section has a web central portion connected on each side to a flange portion having a thickness of at least 100 mm. The steel section microstructure includes at least one kind of vanadium precipitates possibly comprising also one or more metal chosen among chromium, manganese and iron, the precipitates being chosen among nitrides, carbides, carbo-nitrides or any combination of them, more than 70% of such precipitates having a mean diameter below 6 nm. It also deals with a manufacturing method thereof.
    Type: Application
    Filed: December 12, 2018
    Publication date: October 29, 2020
    Inventors: Christophe HOUYOUX, Valerie RINALDI, Boris DONNAY, Liudmila WEBBER
  • Method for continuously casting a steel beam blank
    Patent number: 6883584
    Abstract: A method for producing a steel beam blank includes continuously casting a steel beam blank strand and cooling the steel beam blank strand in a secondary cooling zone. The steel beam blank strand is guided in a vertical casting plane along a curved path having its web perpendicular to the vertical casting plane, so that each of the lateral flanges has an intrados flange tip and an extrados flange tip. The method further includes straightening the steel beam blank strand behind the secondary cooling zone. When being straightened, the intrados flange tips are selectively reheated between the secondary cooling and the straightening of the steel beam blank strand via an external energy supply focused on the intrados flange tips. In this manner, transverse cracks in the intrados flange tips may be reliably avoided.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: April 26, 2005
    Assignee: ProfilARBED S.A.
    Inventors: Henri Grober, Boris Donnay, René Creutz, Pierre Michels, Marc Mertens, Charles Prum, Marc Klees, Nicolas Bonifas
  • Method for continuously casting a steel beam blank
    Publication number: 20040194907
    Abstract: A method for producing a steel beam blank includes continuously casting a steel beam blank strand and cooling the steel beam blank strand in a secondary cooling zone. The steel beam blank strand is guided in a vertical casting plane along a curved path having its web perpendicular to the vertical casting plane, so that each of the lateral flanges has an intrados flange tip and an extrados flange tip. The method further includes straightening the steel beam blank strand behind the secondary cooling zone. When being straightened, the intrados flange tips are selectively reheated between the secondary cooling and the straightening of the steel beam blank strand via an external energy supply focused on the intrados flange tips. In this manner, transverse cracks in the intrados flange tips may be reliably avoided.
    Type: Application
    Filed: February 20, 2004
    Publication date: October 7, 2004
    Inventors: Henri Grober, Boris Donnay, Rene Creutz, Pierre Michels, Marc Mertens, Charles Prum, Marc Klees, Nicolas Bonifas