Patents by Inventor Fritz Troeger

Fritz Troeger 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 for the production of ceramics
    Patent number: 7479249
    Abstract: In order to improve a method for the production of structural ceramics and/or functional ceramics consisting of silicon carbide ceramics, with which a porous precursor body is produced from a cellulose-containing material, the porous precursor body is converted into an open-pored carbon body by means of pyrolysis and the open-pored carbon body is converted into silicon-containing carbide ceramics, in particular, silicon carbide ceramics as a result of infiltration of silicon-containing materials, in such a manner that the structural ceramics and/or functional ceramics as well as the components produced therefrom can be produced with properties which are as reproducible as possible it is suggested that at least cellulose-containing powder be used as starting ingredient for the production of the precursor body.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: January 20, 2009
    Assignee: Deutsches Zentrun fuer luft-und Raumfahrt e.V.
    Inventors: Michaela Gahr, Walter Krenkel, Jens Schmidt, Andreas Hofenauer, Olaf Treusch, Fritz Troeger, Gerd Wegener, Joerg Fromm
  • Method for the production of ceramics and component consisting of such ceramics as well as precursor body for the production of such ceramics
    Publication number: 20050037914
    Abstract: In order to improve a method for the production of structural ceramics and/or functional ceramics consisting of silicon carbide ceramics, with which a porous precursor body is produced from a cellulose-containing material, the porous precursor body is converted into an open-pored carbon body by means of pyrolysis and the open-pored carbon body is converted into silicon-containing carbide ceramics, in particular, silicon carbide ceramics as a result of infiltration of silicon-containing materials, in such a manner that the structural ceramics and/or functional ceramics as well as the components produced therefrom can be produced with properties which are as reproducible as possible it is suggested that at least cellulose-containing powder be used as starting ingredient for the production of the precursor body.
    Type: Application
    Filed: June 28, 2004
    Publication date: February 17, 2005
    Applicant: Deutsches Zentrum fuer Luft-und Raumfahrt e.V.
    Inventors: Michaela Gahr, Walter Krenkel, Jens Schmidt, Andreas Hofenauer, Olaf Treusch, Fritz Troeger, Gerd Wegener, Joerg Fromm