Patents by Inventor Peter Hirzinger

Peter Hirzinger 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).

  • Wire print head having piezoelectric drive elements
    Patent number: 4523866
    Abstract: A wire print head is provided with piezoelectric drive elements in the form of strips which are bonded to flexible tabs directed radially inward from a support ring. The ring is secured between a wire guide structure and a cover and the curved surface of the wire guide structure opposite the flexible tabs is grooved whereby contact of the piezoelectric elements on the flexed tabs and the risk of breakage thereof is avoided. The drive ends of the print wires supported in the wire guide structure are directly driven by the ends of the flexible tabs and have no contact with the piezoelectric elements. Further the cover is provided with electrode guards having slots to dissipate heat generated in the flexible tabs.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: June 18, 1985
    Assignee: Triumph-Adler A.G. fur Buro- und Informationstechnik
    Inventors: Peter Hirzinger, Karl-Heinz Vatterott