Patents by Inventor Christoph Hesselmann

Christoph Hesselmann 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).

  • Patent number: 6322608
    Abstract: The invention relates to a process for producing a component from an Al2O3/titanium aluminide composite material. To produce the component, a shaped body is pressed from a starting mix of titanium, in particular as an oxide, carbon and/or its precursors, fillers and binders. At a conversion temperature, the shaped body is subjected to a heat treatment in order to form a pressure-stable sacrificial body. In the process, the filler and, if appropriate, the binder is/are also removed by thermal means. The sacrificial body is filled with aluminum and/or an aluminum alloy under pressure. The filling takes place at a filling temperature which is above the conversion temperature. Then, the temperature is reduced to a transformation temperature, the materials of the filled sacrificial body and the aluminum reacting through a solid-state reaction, below the filling temperature, to form an Al2O3/titanium aluminide composite body.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: November 27, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Tilmann Haug, Christoph Hesselmann, Steffen Rauscher, Michael Scheydecker