Patents by Inventor Denis Donner

Denis Donner 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).

  • Contact for a vacuum interrupter and production method for such a contact
    Patent number: 12633469
    Abstract: A contact for a vacuum interrupter of a low, medium or high-voltage switchgear includes a contact rod composed of a first electrically conductive material and extending along a longitudinal axis of the contact, and a contact piece composed of a second electrically conductive material and fastened to an end face of the contact rod. The contact rod and the contact piece are materially bonded to one another at a connecting face. At least one of the contact rod or the contact piece has a wall which delimits the connecting face, rises perpendicularly to the longitudinal axis and is disposed such that the contact piece and the contact rod are also force-lockingly connected to one another by a force acting transversely to the longitudinal axis between the contact piece and the contact rod. A production method for such a contact is also provided.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: May 19, 2026
    Assignee: Siemens Aktiengesellschaft
    Inventors: Frank Graskowski, Uwe Jahnke, Denis Donner, Thomas Brauner, Klaus Oberndörfer
  • CONTACT FOR A VACUUM INTERRUPTER AND PRODUCTION METHOD FOR SUCH A CONTACT
    Publication number: 20230368986
    Abstract: A contact for a vacuum interrupter of a low, medium or high-voltage switchgear includes a contact rod composed of a first electrically conductive material and extending along a longitudinal axis of the contact, and a contact piece composed of a second electrically conductive material and fastened to an end face of the contact rod. The contact rod and the contact piece are materially bonded to one another at a connecting face. At least one of the contact rod or the contact piece has a wall which delimits the connecting face, rises perpendicularly to the longitudinal axis and is disposed such that the contact piece and the contact rod are also force-lockingly connected to one another by a force acting transversely to the longitudinal axis between the contact piece and the contact rod. A production method for such a contact is also provided.
    Type: Application
    Filed: September 17, 2021
    Publication date: November 16, 2023
    Inventors: Frank Graskowski, Uwe Jahnke, Denis Donner, Thomas Brauner, Klaus Oberndörfer