Patents by Inventor Denis R. Gonseth

Denis R. Gonseth 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).

  • Stratified protecting coating for wearing pieces and hard metal cutting tools
    Patent number: 4237184
    Abstract: This invention relates to a hard metal wearing piece, especially for tools, which is covered at least on the places subjected to wear with stratified protecting coating. This stratified protecting coating comprises at least five superimposed layers, at least two of them being of different compositions; furthermore, the internal layer in contact with the substrate is a layer of carbide, the external layer is a layer of boride or carbide, and the intermediary layers are of carbide, nitride, oxide, boride, and/or of mixed compounds thereof.
    Type: Grant
    Filed: June 15, 1979
    Date of Patent: December 2, 1980
    Assignee: Stellram S.A.
    Inventors: Denis R. Gonseth, Charles Hauser