Patents by Inventor Peter Pfirrmann

Peter Pfirrmann 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).

  • Patent number: 7579933
    Abstract: The disclosure relates to an electrical installation switching device, having a switching mechanism with a latching point which can be unlatched manually by means of a switching toggle or by means of an electromagnetic or thermal release, having a tripping lever which can be operated by the electromagnetic and thermal release and acts on the latching point, having a latching lever which forms one element of the latching point, and having a movable contact lever, which can pivot, is acted on by the electrical release in the event of a short-circuit and is moved permanently to the disconnected position by the switching mechanism in the event of a short-circuit or overcurrent. The latching lever (which is mounted in the enclosure such that it can rotate) together with the tripping lever forms the latching point. The tripping lever is mounted such that it can rotate on the same rotation axis as the switching toggle.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: August 25, 2009
    Assignee: ABB Patent GmbH
    Inventors: Ralf Weber, Jürgen Christmann, Klaus-Peter Eppe, Peter Pfirrmann
  • Publication number: 20080001687
    Abstract: The disclosure relates to an electrical installation switching device, having a switching mechanism with a latching point which can be unlatched manually by means of a switching toggle or by means of an electromagnetic or thermal release, having a tripping lever which can be operated by the electromagnetic and thermal release and acts on the latching point, having a latching lever which forms one element of the latching point, and having a movable contact lever, which can pivot, is acted on by the electrical release in the event of a short-circuit and is moved permanently to the disconnected position by the switching mechanism in the event of a short-circuit or overcurrent. The latching lever (which is mounted in the enclosure such that it can rotate) together with the tripping lever forms the latching point. The tripping lever is mounted such that it can rotate on the same rotation axis as the switching toggle.
    Type: Application
    Filed: November 8, 2005
    Publication date: January 3, 2008
    Applicant: ABB Patent GmbH
    Inventors: Ralf Weber, Jurgen Christmann, Klaus-Peter Eppe, Peter Pfirrmann