Patents by Inventor Helmut Girg

Helmut Girg 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).

  • Link chain with improved wear resistance and method of manufacturing same
    Patent number: 7490715
    Abstract: Link chain with improved wear resistance as well as method of manufacturing such a link chain. For manufacturing of a link chain, several chain links (39; 40) comprising link pins (41) or plates provided with coatings being applied by means of a PVD process are assembled. The coatings consist of hard material layers and/or slide material layers. It is possible that no PVD coating is provided on a transition zone (1a; 4) of elements (41; 42) used for the manufacturing of the chain links predetermined for connection with another element (42; 41).
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: February 17, 2009
    Assignee: Joh. Winklhofer & Soehne GmbH & Co. KG
    Inventors: Helmut Girg, Martin Kohn, Stefan Pintoiu, Stephan Schmitt, Gerald Jörgensen, Bernhard Schachtner
  • Link chain with improved wear resistance and method of manufacturing same
    Publication number: 20060217224
    Abstract: Link chain with improved wear resistance as well as method of manufacturing such a link chain. For manufacturing of a link chain, several chain links (39; 40) comprising link pins (41) or plates provided with coatings being applied by means of a PVD process are assembled. The coatings consist of hard material layers and/or slide material layers. It is possible that no PVD coating is provided on a transition zone (1a; 4) of elements (41; 42) used for the manufacturing of the chain links predetermined for connection with another element (42; 41).
    Type: Application
    Filed: March 10, 2006
    Publication date: September 28, 2006
    Inventors: Helmut Girg, Martin Kohn, Stefan Pintoiu, Stephan Schmitt, Gerald Jorgensen, Bernhard Schachtner