Patents by Inventor Anders Wickstrom

Anders Wickstrom 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: 20220251823
    Abstract: Wood connection for large wooden constructions comprising a first wood module, a second wood module and a perforated steel plate comprising a plurality of holes, where the first wood module and the second wood module comprises a plurality of laminated wood layers, where each wood layer comprises a plurality of laminated veneer plies, where a first part of the perforated steel plate is mounted in the first wood module with glue, and where a second part of the perforated steel plate is mounted in the second wood module with glue, with a centreline of the perforated steel plate aligned with a split line between the first wood module and the second wood module, and where the perforated steel plate has a tensile strength exceeding 700 MPa and that a wood module is at least 6 cm thick and has a tensile strength exceeding 20 MPa.
    Type: Application
    Filed: May 7, 2020
    Publication date: August 11, 2022
    Inventors: Erik DÖLERUD, Anders WICKSTRÖM
  • Patent number: 9605654
    Abstract: A method of operating at least one wind turbine is described, comprising: determining a plurality of stress events of at least one component of the at least one wind turbine; determining at least one accumulated stress from at least two of the plurality of stress events; determining at least one residual lifetime based at least partially on the at least one accumulated stress.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: March 28, 2017
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Anders Wickström
  • Patent number: 9273668
    Abstract: The present invention relates to a yaw system 5 for a windmill 1, the windmill comprising a tower 2 and a nacelle 3, the tower and the nacelle being joined by the yaw system and the yaw system further comprising a bearing fixed to the tower, on which bearing the nacelle rests and slides in a yawing movement, and at least one yaw motor arranged to allow the nacelle to perform a rotary motion along the bearing, wherein the yaw system 5 further comprises control means 8 for continuously operating the at least one yaw motor in such a way that the yaw motor strives to maneuver the nacelle according to a setpoint.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: March 1, 2016
    Assignee: General Electric Company
    Inventors: Mikael Bjork, Anders Wickstrom, Christian Haag
  • Publication number: 20140030089
    Abstract: A method of operating at least one wind turbine is described, comprising: determining a plurality of stress events of at least one component of the at least one wind turbine; determining at least one accumulated stress from at least two of the plurality of stress events; determining at least one residual lifetime based at least partially on the at least one accumulated stress.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 30, 2014
    Inventor: Anders WICKSTRÖM
  • Publication number: 20120175878
    Abstract: A method for operating a wind power plant having turbine blades is provided. The method includes performing a monitoring operation to determine whether ice has formed on the turbine blades and, if there is ice on the turbine blades, removing the ice. To remove the ice, the turbine blades are driven alternatingly in opposite directions such that vibrations in the turbine blades are generated. A wind power plant designed to carry out the method is also provided.
    Type: Application
    Filed: June 3, 2010
    Publication date: July 12, 2012
    Inventor: Anders Wickstrom
  • Publication number: 20110311359
    Abstract: The present invention relates to a yaw system 5 for a windmill 1, the windmill comprising a tower 2 and a nacelle 3, the tower and the nacelle being joined by the yaw system and the yaw system further comprising a bearing fixed to the tower, on which bearing the nacelle rests and slides in a yawing movement, and at least one yaw motor arranged to allow the nacelle to perform a rotary motion along the bearing, wherein the yaw system 5 further comprises control means 8 for continuously operating the at least one yaw motor in such a way that the yaw motor strives to manoeuvre the nacelle according to a setpoint.
    Type: Application
    Filed: March 5, 2010
    Publication date: December 22, 2011
    Inventors: Mikael Bjork, Anders Wickstrom, Christian Haag
  • Patent number: 6911741
    Abstract: Wind power plant with a wind turbine with a turbine shaft with which a generator shaft, which can be an extension of the turbine shaft, is connected to the rotor (12) of an electric generator. The rotor is radially surrounded by a stator, the turbine shaft is journalled in two bearing housings with bearings arranged on a base at the top of a tower, the base is pivotable around a vertical axis, and a motor is provided to effect the pivoting. The generator shaft is integrated with or rigidly connected to a flexing turbine shaft, the stator and rotor are carried by the generator shaft, to allow the generator to follow the flexing movement of the turbine shaft and the stator is locked against turning by a non-rotatable coupling which transfers substantially no bending moment or axial force acting against the flexing of the turbine shaft due to the bending moment acting on the turbine shaft from its hub, the bearings being provided to allow flexing of the turbine shaft.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: June 28, 2005
    Assignee: Scan Wind Group AG
    Inventors: Torolf Pettersen, Anders Wickstrom, Mikael Lindberg
  • Publication number: 20040041407
    Abstract: Wind power plant with a wind turbine with a turbine shaft (8) which with a generator shaft (22), which can be an extension of the turbine shaft, is connected to the rotor (12) of an electric generator (11). The turbine shaft (8) is journalled in two bearing housings (6, 7) with bearings (9, 10) arranged on a base (4) at the top of a tower (1). The generator shaft (22) is integrated with or rigidly connected to flexing turbine shaft (8). The stator (19) and rotor (12) are carried by the generator shaft (22), to allow the generator (11) to follow the flexing movement of the turbine shaft (8), the stator (19) is locked against turning by a non-rotatable coupling (20) which transfers substantially no bending movement or axial force acting against the flexing of the turbine shaft (8) due to the bending movement acting on the turbine shaft (8) from its hub, the bearings (9 and 10) being provided to allow flexing of the turbine shaft.
    Type: Application
    Filed: July 25, 2003
    Publication date: March 4, 2004
    Inventors: Torolf Pettersen, Anders Wickstrom, Mikael Lindberg