Patents by Inventor Robert Sigl

Robert Sigl 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 of manufacturing a metallic component or substrate with bonded coating
    Patent number: 5660320
    Abstract: A metallic alloy part having a bonded coating that includes dispersed hard-material particles embedded in a metal matrix, composed of a eutectic solder whose alloy elements include at least the base metal of the metallic alloy part. The solder is formed by fusion bonding on the metallic alloy part, a precoating composed of sequential layers of the elemental components of the solder applied on the metal part or on the hard-material particles. The composition and disposition of the various layers are graduated such that the melting points of the elemental solder components increase towards the outermost layer.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: August 26, 1997
    Assignee: MTU Motoren-Und Turbinen-Union Munchen GmbH
    Inventors: Wilhelm Hoffmuller, Josef Eichner, Robert Sigl, Thomas Uihlein