Patents by Inventor Lars Christian Bielefedt

Lars Christian Bielefedt 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).

  • Apparatus for the ventilaton of a rotor hub of a wind energy plant
    Patent number: 8128368
    Abstract: Apparatus for the ventilation of a rotor hub of a wind energy plant, with a cup-shaped ventilation cap, which has a circumferential side wall and a base portion, wherein the side wall has at least one bore for draining water and the base portion has at least one bore for ventilation, a pipe-shaped connection piece, which has an air entrance opening which runs out into an interior space of the rotor hub, wherein the ventilation cap is arranged before the air entrance opening and the at least one bore for ventilation is arranged in the ventilation cap outside of the air entrance opening of the pipe-shaped connection piece such that the air entrance opening is covered up by the ventilation cap.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: March 6, 2012
    Assignee: Nordex Energy GmbH
    Inventor: Lars Christian Bielefedt
  • APPARATUS FOR THE VENTILATON OF A ROTOR HUB OF A WIND ENERGY PLANT
    Publication number: 20090108690
    Abstract: Apparatus for the ventilation of a rotor hub of a wind energy plant, with a cup-shaped ventilation cap, which has a circumferential side wall and a base portion, wherein the side wall has at least one bore for draining water and the base portion has at least one bore for ventilation, a pipe-shaped connection piece, which has an air entrance opening which runs out into an interior space of the rotor hub, wherein the ventilation cap is arranged before the air entrance opening and the at least one bore for ventilation is arranged in the ventilation cap outside of the air entrance opening of the pipe-shaped connection piece such that the air entrance opening is covered up by the ventilation cap.
    Type: Application
    Filed: September 5, 2008
    Publication date: April 30, 2009
    Applicant: Nordex Energy GmbH
    Inventor: Lars Christian Bielefedt