Patents by Inventor Eberhard Blank

Eberhard Blank 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).

  • Surface coating made from an aluminum-based alloy
    Patent number: 5143557
    Abstract: A substrate based on aluminum (Al) is given a surface coating of aluminum (Al) and silicon (Si) and of at least one element X from the group iron (Fe), nickel (Ni), cobalt (Co), manganese (Mn and chromium (Cr), the total proportion of elements X being 1 to 35 wt.%. Depending on the concentration (C) of elements X in wt.%, the minimum hardness over at least 50% of the coated surface, measured in HV 0.05, can be calculated from the formula;HV 0.05=134+2.6 . C+0.44. C.sup.2The surface coating with the required minimum hardness greatly improves the mechanical and/or chemical properties of the substrate.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: September 1, 1992
    Assignee: Sulzer Brothers Limited
    Inventors: Michel Pierantoni, Eberhard Blank, Michel Carrard, Jean-Daniel Wagniere