Patents by Inventor Dan Bak

Dan Bak 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).

  • Control of power, loads and/or stability of a horizontal axis wind turbine by use of variable blade geometry control
    Publication number: 20070036653
    Abstract: The present invention relates to a design concept by which the power, loads and/or stability of a wind turbine may be controlled by typically fast variation of the geometry of the blades using active geometry control (e.g. smart materials or by embedded mechanical actuators), or using passive geometry control (e.g. changes arising from loading and/or deformation of the blade) or by a combination of the two methods. The invention relates in particular to a wind turbine blade, a wind turbine and a method of controlling a wind turbine.
    Type: Application
    Filed: March 31, 2004
    Publication date: February 15, 2007
    Applicant: FORSKNINGSCENTER RISO
    Inventors: Dan Bak, Thomas Buhl, Peter Fuglsang, Helge Madsen, Flemming Rasmussen