Patents Assigned to Osterreichisch-Amerikanische Magnesit Aktiengessellschaft
  • Apparatus for introducing gas to molten metal within a vessel
    Patent number: 4657226
    Abstract: The invention relates to apparatus including a gas purge brick for metallurgical furnaces and vessels, which is connected with a gas supply pipe on its cold end remote from the interior of the furnace or vessel. Within the gas supply pipe there is centrally arranged a solid metal core which is surrounded by a helix. Optionally, at least the part of the gas supply pipe adjoining the cold brick end is surrounded by a protecting tube filled with a refractory material.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: April 14, 1987
    Assignee: Osterreichisch-Amerikanische Magnesit Aktiengessellschaft
    Inventors: Heinrich Illemann, Gustav M. Heinricher