Patents by Inventor Evan Nielsen

Evan Nielsen 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).

  • Publication number: 20100021296
    Abstract: A method and an arrangement for adjusting a pitch of blades being used by a wind-turbine are described. Pressure is measured at a pressure-side and at a suction side of a blade. The measured pressures are used to determine an actual angle-of-attack of a wind acting on the blade. The angle-of-attack is used to adjust the pitch of the blade of the wind-turbine.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 28, 2010
    Inventor: Daniel Evan Nielsen
  • Patent number: 7418347
    Abstract: The invention relates to a method and an apparatus for determining the risk of ice deposition due to precipitation. According to the invention the measurements of precipitation known so far are combined with measurements of the actual amount of ice deposited from the precipitation. Said measurements are combined in a combination unit that is able to receive further parameter information, eg the amount and type of anti-icing liquid. Compared to previously a considerably more reliable determination of the risk of ice deposition is accomplished, eg on the wing of an aeroplane applied with anti-icing liquid, and so is reliable determination of the holdover time, HOT, during which one can be sure that the aeroplane is free from ice in the current weather conditions.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: August 26, 2008
    Assignee: Dalsgaard Nielsen ApS
    Inventor: Evan Nielsen
  • Publication number: 20050251341
    Abstract: The invention relates to a method and an apparatus for determining the risk of ice deposition due to precipitation. According to the invention the measurements of precipitation known so far are combined with measurements of the actual amount of ice deposited from the precipitation. Said measurements are combined in a combination unit that is able to receive further parameter information, eg the amount and type of anti-icing liquid. Compared to previously a considerably more reliable determination of the risk of ice deposition is accomplished, eg on the wing of an aeroplane applied with anti-icing liquid, and so is reliable determination of the holdover time, HOT, during which one can be sure that the aeroplane is free from ice in the current weather conditions.
    Type: Application
    Filed: August 26, 2003
    Publication date: November 10, 2005
    Inventor: Evan Nielsen
  • Patent number: 6758091
    Abstract: An apparatus and a method for local measurement of an icing factor for atmospheric air containing supercooled water, and wherein the apparatus comprises at least one surface element made of a material suitable for ice in atmospheric air to freeze on, and said surface element having a predetermined surface area, and wherein the apparats further comprises means that are configured for moving the surface element through the atmospheric air at a predetermined rate and for a predetermined period of time, and wherein means am also provided that are configured for measuring the thickness or mass of the ice frozen fast onto the surface element after the predetermined time interval during which the element is moved through the atmospheric air.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: July 6, 2004
    Assignee: Dalsgaard Nielsen ApS
    Inventor: Evan Nielsen