Patents by Inventor Udo Topfer

Udo Topfer 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).

  • Piezoelectric valve
    Patent number: 6811136
    Abstract: A piezoelectric valve whose housing defines a valve chamber wherein at least one piezoelectric flexural transducer is located. The piezoelectric flexural transducer possesses a contact face, which faces a first outer wall of the valve housing. This first outer wall is in the form of a wiring support which possesses a support body consisting of plastic material, which at the outer side opposite to the valve chamber bears a wiring arrangement. The wiring arrangement is in electrical contact by way of a via extending through a cutout in the support body with the piezoelectric flexural transducer, since the via consists of an electrically conductive elastic plug, against which the at least one contact face is thrust at the inner face of the support body.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: November 2, 2004
    Assignee: Festo AG & Co.
    Inventors: Wolfgang Eberhardt, Heinz Kück, Carsten Pein, Frank Pöhlau, Andreas Schmid, Stefan Klump, Michael Riedel, Jürgen Sestak, Udo Töpfer, Hubert Krämer, Martin Maichl, Markus Hoffman, Gebhard Munz, Michael Weinmann
  • Piezoelectric valve
    Publication number: 20030222236
    Abstract: A piezoelectric valve whose housing defines a valve chamber wherein at least one piezoelectric flexural transducer is located. The piezoelectric flexural transducer possesses a contact face, which faces a first outer wall of the valve housing. This first outer wall is in the form of a wiring support which possesses a support body consisting of plastic material, which at the outer side opposite to the valve chamber bears a wiring arrangement. The wiring arrangement is in electrical contact by way of a via extending through a cutout in the support body with the piezoelectric flexural transducer, since the via consists of an electrically conductive elastic plug, against which the at least one contact face is thrust at the inner face of the support body.
    Type: Application
    Filed: May 19, 2003
    Publication date: December 4, 2003
    Applicant: Festo AG & Co.
    Inventors: Wolfgang Eberhardt, Heinz Kuck, Carsten Pein, Frank Pohlau, Andreas Schmid, Stefan Klump, Michael Riedel, Jurgen Sestak, Udo Topfer, Hubert Kramer, Martin Maichl, Markus Hoffmann, Gebhard Munz, Michael Weinmann