Patents by Inventor Herbert Bumberger

Herbert Bumberger 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).

  • Closure mechanism with gas seal
    Patent number: 4555050
    Abstract: A closure mechanism includes a conical discharge nozzle and a shielding tube fitted over the exterior of the discharge nozzle. A snug conical joint is formed by closely complementary conical surfaces of the discharge nozzle and the shielding tube. At least one ring-shaped seal is provided in such joint to prevent exterior air from entering between the discharge nozzle and the shielding tube into the interior of the shielding tube. The ring-shaped seal comprises an annular recess formed in one of the conical surfaces, thereby defining an annular chamber, and an inert gas filling such chamber.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: November 26, 1985
    Assignees: Didier-Werke AG, Voest-Alpine AG
    Inventors: Bernhard Schiefer, Herbert Bumberger
  • Continuous steel casting method
    Patent number: 3935895
    Abstract: The present invention relates to a continuous steel casting method for a casting capacity of more than 1.5 metric tons of steel per minute. In this method a vertically arranged, substantially rectangular mold is used, into which at least one steel stream containing inert gas is passed through a casting tube below the surface of the casting level in the mold. The casting tube is provided with lateral downwardly inclined outlet openings, whose axes lie in a vertical plane running through the larger transverse axis of the mold. The axes of the lateral outlet openings run at an angle which depends upon the perpendicular distance of the axes from the narrow side of the mold. The inert gas is supplied in an amount of 1 to 15 Ncm.sup.3 /kg steel, preferably 3 to 8 Ncm.sup.3 /kg steel, to the steel stream over its entire cross section at the place of origin above the mold. The invention is of particular advantage for slabs wider than 800 mm of aluminum-containing steel.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: February 3, 1976
    Assignee: Vereinigte Osterreichische Eisen- und Stahlwerke-Alpine Montan Aktiengesellschaft
    Inventors: Thorwald Fastner, Alois Niedermayr, Ernst Bachner, Herbert Bumberger
  • Closure mechanism with gas seal
    Patent number: RE33036
    Abstract: A closure mechanism includes a conical discharge nozzle and a shielding tube fitted over the exterior of the discharge nozzle. A snug conical joint is formed by closely complementary conical surfaces of the discharge nozzle and the shielding tube. At least one ring-shaped seal is provided in such joint to prevent exterior air from entering between the discharge nozzle and the shielding tube into the interior of the shielding tube. The ring-shaped seal comprises an annular recess formed in one of the conical surfaces, thereby defining an annular chamber, and an inert gas filling such chamber.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: August 29, 1989
    Assignees: Didier-Werke AG, Voest-Alpine AG
    Inventors: Bernhard Schiefer, Herbert Bumberger