Patents by Inventor Sergej Riazantsev

Sergej Riazantsev 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 producing a cast part, model mold, and ceramic insert for use in this method
    Patent number: 6695036
    Abstract: The invention relates to a method for producing a cast part of a thermal turbo-machine by way of a known casting process. Between a model mold and a ceramic insert, projections are located on the ceramic insert, whereby the projections have an angle (&agr;, &bgr;) between the center line and the outer edge of the projections of less than 30°, and whereby the projections are used both for the fixation of the insert during the casting process and for the reduction of the notch factor inside the recesses created in the cast part.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: February 24, 2004
    Assignee: Alstom (Switzerland) Ltd
    Inventors: Herbert Brandl, Alexander Hoffs, Roland Muecke, Sergej Riazantsev, Alexander Beeck
  • Method for producing a cast part, model mold, and ceramic insert for use in this method
    Publication number: 20020129924
    Abstract: The invention relates to a method for producing a cast part of a thermal turbo-machine by way of a known casting process. Between a model mold and a ceramic insert, projections are located on the ceramic insert, whereby the projections have an angle (&agr;, &bgr;) between the center line and the outer edge of the projections of less than 30°, and whereby the projections are used both for the fixation of the insert during the casting process and for the reduction of the notch factor inside the recesses created in the cast part.
    Type: Application
    Filed: November 26, 2001
    Publication date: September 19, 2002
    Inventors: Herbert Brandl, Alexander Hoffs, Roland Muecke, Sergej Riazantsev, Alexander Beeck