Patents by Inventor Flemming Rasmussen

Flemming Rasmussen 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: 20210329906
    Abstract: An apparatus for dispensing an insecticide across an area of land; the apparatus comprising a vehicle configured to travel along a travelling path across the area of land, the vehicle defining a direction of travel, the vehicle comprising an insecticide dispensing device configured to dispense an insecticide along said traveling path when the vehicle travels along the travelling path; a dispensing control system configured to control an amount of insecticide to be dispensed when the vehicle travels along the travelling path; an insect sensor configured to detect insects in a detection volume; wherein the detection volume is located in front of the vehicle relative to the direction of travel; wherein the dispensing control system is configured to receive sensor data from the insect sensor, the sensor data being indicative of detected insects in the detection volume, and to control the amount of dispensed insecticide responsive to the received sensor data.
    Type: Application
    Filed: August 29, 2019
    Publication date: October 28, 2021
    Inventors: Frederik Taarnhøj, Klas Rydhmer, Alfred Gösta Victor Strand, Flemming Rasmussen, Michael Stanley Pedersen, Thomas Nikolajsen
  • Patent number: 8419363
    Abstract: A deformable trailing edge section (3) of a wind turbine blade (1), at least part of said section (3) being formed in a deformable material. The blade section (3) comprises one or more cavities (5) being in connection with or connectable to a fluid source in a way that allows fluid to stream from the fluid source to the cavity or cavities (5), so that the shape of the deformable trailing edge section (3) and thereby the camber of the blade cross-section (3) is changeable by the pressure of fluid in the cavity or cavities (5) with insignificant changes of the thickness and chord wise length of the deformable trailing edge section. Furthermore a wind turbine blade (1) is described, having at least one of such trailing edge section (s) (3) and to a system (11) for mounting a blade section (3) on a main blade (2) of a wind turbine. In addition a method of manufacturing a deformable trailing edge section (3) of a wind turbine blade (1) is disclosed.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: April 16, 2013
    Assignee: Danmarks Tekniske Universitet
    Inventors: Helge Aagaard Madsen, Flemming Rasmussen, Thomas Buhl, Morten Hartvig Hansen, Dan Christian Bak, Mac Gaunaa, Peter Bjørn Andersen
  • Patent number: 7632068
    Abstract: The present invention relates to a design concept by which the power, loads and/or stability of a wind turbine may be controlled by typically fast variation of the geometry of the blades using active geometry control (e.g. smart materials or by embedded mechanical actuators), or using passive geometry control (e.g. changes arising from loading and/or deformation of the blade) or by a combination of the two methods. The invention relates in particular to a wind turbine blade, a wind turbine and a method of controlling a wind turbine.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: December 15, 2009
    Assignee: Technical University of Denmark
    Inventors: Dan Christian Bak, Thomas Buhl, Peter Fuglsang, Helge Aagaard Madsen, Flemming Rasmussen
  • Publication number: 20090290982
    Abstract: A deformable trailing edge section (3) of a wind turbine blade (1), at least part of said section (3) being formed in a deformable material. The blade section (3) comprises one or more cavities (5) being in connection with or connectable to a fluid source in a way that allows fluid to stream from the fluid source to the cavity or cavities (5), so that the shape of the deformable trailing edge section (3) and thereby the camber of the blade cross-section (3) is changeable by the pressure of fluid in the cavity or cavities (5) with insignificant changes of the thickness and chord wise length of the deformable trailing edge section. Furthermore a wind turbine blade (1) is described, having at least one of such trailing edge section (s) (3) and to a system (11) for mounting a blade section (3) on a main blade (2) of a wind turbine. In addition a method of manufacturing a deformable trailing edge section (3) of a wind turbine blade (1) is disclosed.
    Type: Application
    Filed: July 6, 2007
    Publication date: November 26, 2009
    Inventors: Helge Aagaard Madsen, Flemming Rasmussen, Thomas Buhl, Morten Hartvig Hansen, Dan Christian Bak, Mac Gaunaa, Peter Bjørn Andersen
  • Publication number: 20070036653
    Abstract: The present invention relates to a design concept by which the power, loads and/or stability of a wind turbine may be controlled by typically fast variation of the geometry of the blades using active geometry control (e.g. smart materials or by embedded mechanical actuators), or using passive geometry control (e.g. changes arising from loading and/or deformation of the blade) or by a combination of the two methods. The invention relates in particular to a wind turbine blade, a wind turbine and a method of controlling a wind turbine.
    Type: Application
    Filed: March 31, 2004
    Publication date: February 15, 2007
    Applicant: FORSKNINGSCENTER RISO
    Inventors: Dan Bak, Thomas Buhl, Peter Fuglsang, Helge Madsen, Flemming Rasmussen
  • Patent number: 6672837
    Abstract: The present invention relates to a wind turbine with oscillation damping means provided at the nacelle and being designed for damping edgewise oscillations of the rotor blades in the rotational plane of the rotor. In particular, the invention relates to a wind turbine in which the oscillation damping means are provided at the end of the nacelle being opposite to the end from which the rotor extends and are designed for damping oscillations of the first eigenfrequency of the rotor blades in the rotational plane, especially oscillations being perpendicular to the rotational axis of the rotor. The damping means are advantageously designed to dampen oscillations of a frequency being substantially equal to the first eigenfrequency in the rotational plane of the at least one blade minus the frequency of rotation of the rotor. The oscillation damping means of the present invention are preferably capable of damping oscillations being substantially horizontal and substantially perpendicular to the rotation axis.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: January 6, 2004
    Assignee: NEG Micon A/S
    Inventors: Herman F. Veldkamp, Lars Risager, Flemming Rasmussen
  • Patent number: 6514043
    Abstract: The present invention relates to a hub assembly of a rotor for holding at least one wing, wherein the at least one wing is connected/mounted to the hub assembly in at least two suspension points. The hub assembly may be applied to any kind of either energy extracting devices such as wind turbines or the like or lift producing devices such as helicopter rotors or propellers. The invention is suited for rotors in general and is able to enable coning movement of wings connected/mounted to the hub assembly, enable teetering movement of the rotor and enable alteration of the pitch angle of the wings connected/mounted to the hub assembly. The hub assembly according to the present invention provides a hub where the pitching of the wings can occur synchronously/simultaneously due to an interconnection of the wings attached/mounted to the hub assembly and where coning of the wings may be applied at the same time with pitching of the wings and teetering of the rotor.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: February 4, 2003
    Assignee: Forskningscenter Risø
    Inventors: Flemming Rasmussen, Per Vølund, Jørgen Thirstrup Petersen, Bjørn Johansen, Preben Ellebæk