Patents by Inventor Stefan Richl

Stefan Richl 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).

  • FAN AND METHOD FOR OPERATING A FAN
    Publication number: 20110058946
    Abstract: The invention relates to a fan, particularly a radial fan, having a fan hub with a rotational axis. A plurality of fan blades is disposed about the rotational axis for deflecting an air flow. The invention provides that an adjustment device is provided at the fan blades for the rotational speed-dependant adjustment of an air flow.
    Type: Application
    Filed: January 8, 2009
    Publication date: March 10, 2011
    Inventors: Adamo Sadikovic, Stefan Richl, Bernd Altvater