Patents by Inventor Helwig Vacek

Helwig Vacek 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).

  • Process for the production of iron from iron ores and apparatus for carrying out said process
    Patent number: 4032121
    Abstract: A process and apparatus for the production of iron from iron ores, in which the ore is being heated and reduced in a rotary kiln by a treatment with solid carbon and with flame gas flowing in a countercurrent, the reduced iron is being collected and overheated in a first hearth furnace and is being fed in batches into a second hearth furnace, and is being converted there to pig iron, cast iron or steel, characterized in that the hot exhaust gases formed in the second hearth furnace are passed into the first hearth furnace and then through the rotary kiln together with the hot exhaust gases produced in the first hearth furnace.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: June 28, 1977
    Assignee: Vereinigte Osterreichische Eisen- und Stahlwerek-Alpine Montan Aktiengesellschaft
    Inventors: Kurt Stift, Helwig Vacek
  • Rotary kiln and hearth furnace
    Patent number: 3991987
    Abstract: A joint between a rotary kiln and a tiltable hearth furnace, characterized in that a part of the hearth furnace embraces the discharge end of the rotary kiln and the pivotal axis of the hearth furnace coincides with the axis of rotation of the rotary kiln at the joint between the rotary kiln and the hearth furnace.
    Type: Grant
    Filed: February 19, 1975
    Date of Patent: November 16, 1976
    Assignee: Vereinigte Osterreichische Eisen- und Stahlwerke-Alpine Montan Aktiengesellschaft
    Inventors: Kurt Stift, Helwig Vacek