Patents by Inventor Wolf-Dieter Franz

Wolf-Dieter Franz 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).

  • Production of satin metal surfaces
    Patent number: 8105473
    Abstract: The invention relates to a galvanic metal coating with an adjustable satin gloss in which a matte Ni layer is deposited on a brilliant surface and is coated with a sulfamate Ni layer.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: January 31, 2012
    Inventor: Wolf-Dieter Franz
  • Production of Silky Material of metal surfaces
    Publication number: 20090211913
    Abstract: The invention relates to a galvanic metal coating with an adjustable satin gloss in which a matt Ni layer is deposited on a brilliant surface and is coated with a sulfamate Ni layer.
    Type: Application
    Filed: October 20, 2006
    Publication date: August 27, 2009
    Inventor: Wolf-Dieter Franz
  • Production of a surface area with metallic conductivity on oxidised al-mg alloys
    Publication number: 20040244880
    Abstract: The invention relates to a method for the remetallisation of surface areas on Al— and/or Mg alloys by means of laser bombardment and then by sealing using a free-flowing and electroconductive substance.
    Type: Application
    Filed: April 9, 2004
    Publication date: December 9, 2004
    Inventor: Wolf-Dieter Franz
  • Coated method for light metal alloys
    Publication number: 20040238371
    Abstract: A new coating method for light metal alloys in which an electrophoretic lacquering and a galvanic coating are combined. Thus, corrosion resistant surfaces having very good optical properties can be achieved, wherein an advantageous flexibility in view of material selection and layer thickness is preserved.
    Type: Application
    Filed: April 9, 2004
    Publication date: December 2, 2004
    Inventor: Wolf-Dieter Franz
  • Graphite metal coating
    Publication number: 20040094424
    Abstract: A method for applying a metal coating to graphite structural members, in which a galvanic metal layer is deposited after said graphite structural members have been anodically etched in an alkaline etchant. The metal coating can serve as a basis for solder connections and can be employed for creating electrical contacts or for mechanically fixing the graphite structural member or it can fulfil other demands on the surface (e.g. abrasion resistance).
    Type: Application
    Filed: November 13, 2003
    Publication date: May 20, 2004
    Applicant: Franz Oberflachentechnik GmbH & Co KG
    Inventor: Wolf-Dieter Franz
  • Method for coating metal surfaces
    Publication number: 20030079997
    Abstract: A method for coating a light metal alloy component to form a protective layer comprising Sn. First, a surface of the light metal alloy component is cleaned and passivated. A layer comprising Zn is formed on the surface, and a layer comprising Sn is deposited. An intermediate layer is preferably deposited between the Zn-containing layer and the Sn containing layer. The Sn-containing layer may additionally be varnished.
    Type: Application
    Filed: October 11, 2002
    Publication date: May 1, 2003
    Applicant: Enthone Inc.
    Inventor: Wolf-Dieter Franz
  • Method for cleaning and passivating a metal surface
    Publication number: 20030056807
    Abstract: A surface of a light-metal alloy is anodically polarized in a cleaning process. The surface is cleaned with a solution containing phosphoric acid, alcohol, and optionally fluoride. Additionally, the surface is passivated in an oxidizing process using, for example, fluoride ions or an aqueous oxidizing agent. Preferably, the light-metal alloy has a relatively high Al or Mg content. This method is suitable for preparing the surface for a subsequent coating operation.
    Type: Application
    Filed: June 20, 2002
    Publication date: March 27, 2003
    Inventor: Wolf-Dieter Franz