Patents Assigned to Oesterreichisch-Amerikanische Magnesit Aktiengesellschaft
  • Sliding shutters of basic refractory material
    Patent number: 4175974
    Abstract: Thermal stress-resistant sliding shutters for discharging molten metal from vessels are formed by chemically bonding basic refractory materials having an MgO content of 55-98.5%.
    Type: Grant
    Filed: July 19, 1977
    Date of Patent: November 27, 1979
    Assignee: Oesterreichisch-Amerikanische Magnesit Aktiengesellschaft
    Inventors: Bernd E. Grabner, Mario G. Heinricher
  • Brickmaking press
    Patent number: 4137026
    Abstract: A brickmaking press comprises a segmental ring, a brick shaping mold supported by the segmental ring in the mold cavity defined thereby, a clamping ring surrounding and enclosing the segmental ring, and the clamping and segmental rings defining an annular chamber maintained under fluid pressure.
    Type: Grant
    Filed: July 27, 1977
    Date of Patent: January 30, 1979
    Assignees: Veitscher Magnesitwerke-Actien-Gesellschaft, Oesterreichisch-Amerikanische Magnesit Aktiengesellschaft
    Inventor: Rudolf Gerstl