Patents by Inventor Gerhard Wolfert

Gerhard Wolfert 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).

  • Electromagnetic actuator mechanism in particular for print hammer drives
    Patent number: 4688012
    Abstract: Upon excitation of the electromagnet, a clapper armature is pulled into an operating gap, being increasingly additionally attracted by the pole of an electromagnet yoke leg.The motional plane of the clapper armature extends perpendicularly to the plane of the magnetic flux of the yoke structure of the electromagnet.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: August 18, 1987
    Assignee: International Business Machines Corporation
    Inventors: Armin Bohg, Ludwig Fischer, Bruno Gantz, Kurt Hartmann, Gerhard Wolfert