Patents by Inventor Michael Chowanietz

Michael Chowanietz 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).

  • Fibre composite material and method of manufacture
    Patent number: 5948706
    Abstract: The invention relates to a fiber composite with a fibrous material for reinforcement and a matrix material consisting essentially of shellac. The invention also relates to a process for producing a fiber composite with the steps:dissolving the shellac in a solvent,impregnating the fibrous material,heating the impregnated fibrous material andcompressing the impregnated fibrous material and simultaneously curing the matrix material.The production process is alternatively characterized by the steps:dissolving the shellac in a solvent,obtaining a solid by removing the solvent,pulverizing the solid,working the pulverized solid into the fibrous material,heating the fibrous material mixed with the pulverized solid, in the process of which the solid softens and permeates the fibrous material, andcompressing the permeated fibrous material and simultaneously curing the matrix material.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: September 7, 1999
    Assignee: Deutsches Zentrum fur Luft-und Raumfahrt e.V.
    Inventors: Ulrich Riedel, Michael Chowanietz