Patents by Inventor Maximillian Merkel

Maximillian Merkel 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).

  • Method for operating a variable-speed wind turbine and the wind turbine
    Patent number: 8882460
    Abstract: A method for operating a wind turbine with a variable speed rotor, a control system and a safety system, including the steps of initiating a braking procedure of the rotor of the wind turbine by the control system when the rotational speed of the rotor exceeds a first threshold value (nc1), and activating a safety system for braking the rotor when the rotational speed of the rotor exceeds a second threshold value (ns1) and when the control system has not initiated a braking procedure, the second threshold value (ns1) being greater than the first threshold value (nc1).
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: November 11, 2014
    Assignee: Nordex Energy GmbH
    Inventor: Maximillian Merkel