Patents by Inventor Hurbert Zwirglmaier

Hurbert Zwirglmaier 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).

  • Selector switch for tap-changing transformers and support arm for a tap selector thereof
    Patent number: 9640340
    Abstract: A load selector for tapped transformers has an oil tank and a preselector having a first preselector contact and a second preselector contact for each phase to be switched by the load selector. The first preselector contact and the second preselector contact are mounted on a wall of the oil tank and extending through the wall of the oil tank. A first zero contact and a second zero contact separate from the first zero contact are provided for each phase to be switched by the preselector. The first zero contact and the second zero contact are each mounted on the wall of the oil tank and extend through the wall of the oil tank.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: May 2, 2017
    Assignee: MASCHINENFABRIK REINHAUSEN GMBH
    Inventors: Hurbert Zwirglmaier, Silke Wrede, Thomas Schuster, Ulli Laubereau, Gerhard Baeuml