Patents by Inventor Herbert Grunbacher

Herbert Grunbacher 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).

  • Method of utilizing dusts produced during the reduction of iron ore
    Patent number: 6287363
    Abstract: In a method of effectively utilizing dusts incurring in the reduction of iron ore by means of a reducing gas and separated on that occasion in a scrubber in the form of sludges, the sludges at first are dehydrated and are used as starting materials for the production of cement (FIG. 1).
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: September 11, 2001
    Assignee: Deutsche Voest-Alpine Industrienalagenbau GmbH
    Inventors: Herbert Grünbacher, Günter Schrey, Franz Zettl, Stefan Zettl
  • Process for producing an iron melt
    Patent number: 5514203
    Abstract: In a process for producing an iron melt, iron ore is reduced to sponge iron in a direct reduction zone. The sponge iron is melted in a meltdown gasifying zone while supplying carbon-containing material under gasification of the carbon-containing material to reducing gas and under formation of a slag. The reducing gas is injected into the direct reduction zone, is reacted there and is drawn off as a top gas. The reducing gas and/or the top gas is subjected to gas scrubbing and the sludges separated during scrubbing are admixed with binder and coal dust and subsequently are agglomerated.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: May 7, 1996
    Assignee: Deutsche Voest Alpine Industrieanlagenbau GmbH
    Inventors: Herbert Grunbacher, Leopold-Werner Kepplinger, Franz Reufer, Gunter Schrey