Patents by Inventor David Gerard Wanner, Jr.

David Gerard Wanner, Jr. 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).

  • Methods and apparatus for pitch control power conversion
    Patent number: 7126236
    Abstract: A method for powering a pitch motor drive system for at least one DC pitch motor of a wind turbine includes rectifying a voltage using a bridge circuit to thereby supply a DC link voltage to a bridge comprising active switching devices, and utilizing at least one link capacitor to smooth the DC link voltage and act as an energy sink and source for the DC pitch motor or motors.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: October 24, 2006
    Assignee: General Electric Company
    Inventors: Cyrus David Harbourt, Jeffrey Alan Melius, Amy Marlene Ridenour, David Gerard Wanner, Jr., Howard Ross Edmunds, Andrew Scott Wilkinson