Patents by Inventor Stefan Zech

Stefan Zech 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).

  • Method for producing a multipole electric motor, and a multipole electric motor
    Patent number: 6194797
    Abstract: A multipole electric motor having a plurality of pole laminations (8-11) guided from ends of coils (4, 5) to a permanent magnet (13) of a rotor (14), the pole laminations (8-11) are firstly produced as a coherent sheet-metal part, and is partially injection-coated with a plastic. Subsequently, the pole laminations (8-11) are separated from one another by means of a laser beam, for example. This renders the mounting of the pole laminations (8-11) particularly simple.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: February 27, 2001
    Assignee: Mannesmann VDO AG
    Inventors: Ernst-Ulrich Simon, Hans Kolibius, Stefan Zech