Patents by Inventor Robert Kasch

Robert Kasch 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 grinding foil
    Patent number: 3985521
    Abstract: A grinding foil which is to be used for grinding a record cutting or playback stylus is manufactured by providing a surface layer of a plastic foil with indentations for accommodating a grinding agent in granular form, filling the indentations with such grinding agent, and thermoplastically deforming the surface layer to smooth the foil surface and to bond the grinding agent into the surface layer.
    Type: Grant
    Filed: March 26, 1974
    Date of Patent: October 12, 1976
    Assignees: TED Bildplatten Aktiengesellschaft, AEG-Telefunken-Teldec
    Inventors: Heinz Borchard, Robert Kasch, Bruno Rybka, Herbert Knothe