Patents by Inventor Ralf Förtsch

Ralf Förtsch 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).

  • Rotary transformer for transmission of electrical energy or information
    Patent number: 7304559
    Abstract: A device for efficient transmission of electrical energy and/or information is built in the manner of a rotary transformer. The cores of this device are made of ferromagnetic rings of a U-shaped cross section of soft iron, or of soft iron core stacks of annular or hollow cylindrical shape, the ring-shaped or hollow cylindrical sheets typically being unslotted. There can be several coil sets within such a device; in this way several channels can be made available for parallel transmission of electrical energy and/or information.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: December 4, 2007
    Assignee: Prueftechnik Dieter Busch AG
    Inventors: Ralf Förtsch, Werner Mühleisen, Roland Hölzl