Patents by Inventor Robert Hammelmann

Robert Hammelmann 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).

  • Valve seat ring
    Patent number: 11311936
    Abstract: The invention relates to a highly heat conductive valve seat ring (1) comprising a carrier layer (2) and a functional layer (3), wherein the carrier layer (2) consists of a solidified copper matrix containing 0.10 to 20% w/w of a solidifying component and the functional layer (3) consists of a solidified copper matrix which further contains, based on the copper matrix, 5 to 35% w/w of one or more hard phases.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 26, 2022
    Assignee: Bleistahl-Produktions GmbH & Co KG
    Inventors: Ekkehard Kohler, Dirk Emde, Ingwar Hunsche, Robert Hammelmann, Christian Blecking, Anna Seyfarth
  • VALVE SEAT RING
    Publication number: 20190143415
    Abstract: The invention relates to a highly heat conductive valve seat ring (1) comprising a carrier layer (2) and a functional layer (3), wherein the carrier layer (2) consists of a solidified copper matrix containing 0.10 to 20% w/w of a solidifying component s and the functional layer (3) consists of a solidified copper matrix which further contains, based on the copper matrix, 5 to 35% w/w of one or more hard phases.
    Type: Application
    Filed: May 24, 2017
    Publication date: May 16, 2019
    Applicant: Bleistahl-Produktions GmbH &Co KG
    Inventors: Ekkehard Kohler, Dirk Emde, Ingwar Hunsche, Robert Hammelmann, Christian Blecking, Anna Seyfarth