Patents by Inventor Murray Fisher
Murray Fisher 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).
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Publication number: 20240009788Abstract: The present invention relates to methods and devices for post mould processing of a composite structure, wherein the composite structure extends along a longitudinal direction and comprising a main composite part, and a flange section extending around a perimeter of the main composite part. The flange section comprises an upper surface having a first mating part with a specific shape in a cross-sectional plane perpendicular to the longitudinal direction, the first mating part being located at a fixed position relative to the main composite part. The method may comprise attaching a guiding device to the outer surface of the composite structure and inspecting and/or processing the surface area with a tool fitted to the guiding device.Type: ApplicationFiled: November 26, 2021Publication date: January 11, 2024Inventors: Peter BROOME, John ARSENEAUX, Murray FISHER, Sierra VAN DIJK, Matthew Joseph EMIG
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Patent number: 11781522Abstract: A rotor blade assembly of a wind turbine includes a rotor blade having an aerodynamic body with an inboard region and an outboard region. The inboard and outboard regions define a pressure side, a suction side, a leading edge, and a trailing edge. The inboard region includes a blade root, whereas the outboard region includes a blade tip. The rotor blade also defines a chord and a span. Further, the inboard region includes a transitional region of the rotor blade that includes a maximum chord. Moreover, a unitless first derivative of the chord with respect to the span of the rotor blade in the transitional region ranges from about ?0.10 to about 0.10 from the maximum chord over about 15% of the span of the rotor blade. In addition, the unitless first derivative of the chord with respect to the span a slope of a change in the chord in is greater than about ?0.03 at an inflection point of the chord in the outboard region.Type: GrantFiled: August 17, 2021Date of Patent: October 10, 2023Assignee: General Electric CompanyInventors: Christian Carroll, Murray Fisher, Benoit Philippe Petitjean, Andreas Herrig, Drew Adam Wetzel, Jonathon Paul Baker
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Patent number: 11274650Abstract: The present disclosure is directed to methods for attaching a plurality of surface features to a rotor blade of a wind turbine. Such methods may include direct molding of the surface features to the rotor blade, bonding arrays of connected components to the rotor blade and subsequently removing connections between components, as well as using a flexible template with or without a tinted adhesive.Type: GrantFiled: November 7, 2019Date of Patent: March 15, 2022Assignee: General Electric CompanyInventors: James Robert Tobin, Murray Fisher, Madireddi Vasu Datta, Drew Adam Wetzel
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Publication number: 20210372364Abstract: A rotor blade assembly of a wind turbine includes a rotor blade having an aerodynamic body with an inboard region and an outboard region. The inboard and outboard regions define a pressure side, a suction side, a leading edge, and a trailing edge. The inboard region includes a blade root, whereas the outboard region includes a blade tip. The rotor blade also defines a chord and a span. Further, the inboard region includes a transitional region of the rotor blade that includes a maximum chord. Moreover, a chord slope of the rotor blade in the transitional region ranges from about ?0.10 to about 0.10 from the maximum chord over about 15% of the span of the rotor blade. In addition, a slope of a change in the chord in the outboard region at a peak from concave to convex or vice versa is greater than about ?0.Type: ApplicationFiled: August 17, 2021Publication date: December 2, 2021Inventors: Christian Carroll, Murray Fisher, Benoit Philippe Petitjean, Andreas Herrig, Drew Adam Wetzel, Jonathon Paul Baker
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Patent number: 10865769Abstract: A method for manufacturing a rotor blade panel of a wind turbine includes placing one or more fiber-reinforced outer skins into a mold of the rotor blade panel. The method also includes printing and depositing, via a computer numeric control (CNC) device, a plurality of rib members that form at least one three-dimensional (3-D) reinforcement grid structure onto an inner surface of the one or more fiber-reinforced outer skins. Further, the grid structure bonds to the one or more fiber-reinforced outer skins as the grid structure is deposited. Moreover, the method includes printing at least one additional feature into the grid structure.Type: GrantFiled: November 21, 2017Date of Patent: December 15, 2020Assignee: General Electric CompanyInventors: James Robert Tobin, Norman Arnold Turnquist, Stephen Bertram Johnson, Don Conrad Johnson, Thomas Merzhaeuser, Peggy Lynn Baehmann, Stefan Herr, Murray Fisher, Andrew McCalip, Alan M. Walker, Todd Anderson
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Publication number: 20200088160Abstract: The present disclosure is directed to methods for attaching a plurality of surface features to a rotor blade of a wind turbine. Such methods may include direct molding of the surface features to the rotor blade, bonding arrays of connected components to the rotor blade and subsequently removing connections between components, as well as using a flexible template with or without a tinted adhesive.Type: ApplicationFiled: November 7, 2019Publication date: March 19, 2020Inventors: James Robert Tobin, Murray Fisher, Madireddi Vasu Datta, Drew Adam Wetzel
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Publication number: 20200088161Abstract: A rotor blade assembly of a wind turbine includes a rotor blade having an aerodynamic body with an inboard region and an outboard region. The inboard and outboard regions define a pressure side, a suction side, a leading edge, and a trailing edge. The inboard region includes a blade root, whereas the outboard region includes a blade tip. The rotor blade also defines a chord and a span. Further, the inboard region includes a transitional region of the rotor blade that includes a maximum chord. Moreover, a chord slope of the rotor blade in the transitional region ranges from about ?0.10 to about 0.10 from the maximum chord over about 15% of the span of the rotor blade.Type: ApplicationFiled: September 17, 2018Publication date: March 19, 2020Inventors: Christian Carroll, Murray Fisher, Benoit Philippe Petitjean, Andreas Herrig, Drew Adam Wetzel, Jonathon Paul Baker
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Patent number: 10487796Abstract: The present disclosure is directed to methods for attaching a plurality of surface features to a rotor blade of a wind turbine. Such methods may include direct molding of the surface features to the rotor blade, bonding arrays of connected components to the rotor blade and subsequently removing connections between components, as well as using a flexible template with or without a tinted adhesive.Type: GrantFiled: October 13, 2016Date of Patent: November 26, 2019Assignee: General Electric CompanyInventors: James Robert Tobin, Murray Fisher, Madireddi Vasu Datta, Drew Adam Wetzel
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Patent number: 10451036Abstract: The present disclosure is directed to a method for controlling a wind turbine using an adjusted aerodynamic performance map. In one embodiment, the method includes monitoring at least one of an actual wind parameter or operating data of the wind turbine using one or more sensors. Further, the method includes determining an adjustment factor for the aerodynamic performance map based, at least in part, on either or both of the measured actual wind parameter or the wind turbine operating data. Moreover, the method includes applying the adjustment factor to a first aerodynamic performance map to obtain an adjusted aerodynamic performance map. Thus, the method also includes controlling the wind turbine based on the adjusted aerodynamic performance map.Type: GrantFiled: May 5, 2017Date of Patent: October 22, 2019Assignee: General Electric CompanyInventors: Stefan Herr, Murray Fisher, Sara Simonne Delport, Jelmer Cnossen
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Publication number: 20190153994Abstract: A method for manufacturing a rotor blade panel of a wind turbine includes placing one or more fiber-reinforced outer skins into a mold of the rotor blade panel. The method also includes printing and depositing, via a computer numeric control (CNC) device, a plurality of rib members that form at least one three-dimensional (3-D) reinforcement grid structure onto an inner surface of the one or more fiber-reinforced outer skins. Further, the grid structure bonds to the one or more fiber-reinforced outer skins as the grid structure is deposited. Moreover, the method includes printing at least one additional feature into the grid structure.Type: ApplicationFiled: November 21, 2017Publication date: May 23, 2019Inventors: James Robert Tobin, Norman Arnold Turnquist, Stephen Bertram Johnson, Don Conrad Johnson, Thomas Merzhaeuser, Peggy Lynn Baehmann, Stefan Herr, Murray Fisher, Andrew McCalip, Alan M. Walker, Todd Anderson
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Publication number: 20190072068Abstract: A method for mitigating noise during high wind speed conditions of a wind turbine includes providing a backward twist to the outboard region of the rotor blade having an angle of less than 6°. The method may also include reducing a tip chord taper within at least a portion of the outboard region of the rotor blade. Further, the method may include increasing a local tip chord length of the rotor blade. In addition, the method may include increasing a torsional stiffness of the outboard region of the rotor blade. As such, a combination of one or more of the blade properties described above are configured to reduce noise associated with high wind speed conditions.Type: ApplicationFiled: September 7, 2017Publication date: March 7, 2019Inventors: Murray Fisher, Christian A. Carroll, Stefan Herr, Drew Adam Wetzel, Benjamin Patrick Hallissy, Andreas Herrig, Benoit Philippe Armand Petitjean
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Publication number: 20180320660Abstract: The present disclosure is directed to a method for controlling a wind turbine using an adjusted aerodynamic performance map. In one embodiment, the method includes monitoring at least one of an actual wind parameter or operating data of the wind turbine using one or more sensors. Further, the method includes determining an adjustment factor for the aerodynamic performance map based, at least in part, on either or both of the measured actual wind parameter or the wind turbine operating data. Moreover, the method includes applying the adjustment factor to a first aerodynamic performance map to obtain an adjusted aerodynamic performance map. Thus, the method also includes controlling the wind turbine based on the adjusted aerodynamic performance map.Type: ApplicationFiled: May 5, 2017Publication date: November 8, 2018Inventors: Stefan Herr, Murray Fisher, Sara Simonne Delport, Jelmer Cnossen
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Publication number: 20180106237Abstract: The present disclosure is directed to methods for attaching a plurality of surface features to a rotor blade of a wind turbine. Such methods may include direct molding of the surface features to the rotor blade, bonding arrays of connected components to the rotor blade and subsequently removing connections between components, as well as using a flexible template with or without a tinted adhesive.Type: ApplicationFiled: October 13, 2016Publication date: April 19, 2018Inventors: James Robert Tobin, Murray Fisher, Madireddi Vasu Datta, Drew Adam Wetzel
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Patent number: 8523515Abstract: A rotor blade assembly for a wind turbine is disclosed. The rotor blade assembly includes a rotor blade having surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root. The rotor blade further includes a noise reducer configured on a surface of the rotor blade, the noise reducer comprising a plurality of serrations, each of the plurality of serrations defining a centerline. The centerline of each of the plurality of serrations defines a individual tailored angle dependent on at least one of span-wise location, local chord, width, length, bend angle, and thickness.Type: GrantFiled: November 15, 2010Date of Patent: September 3, 2013Assignee: General Electric CompanyInventors: Roger Drobietz, Klaus Ulrich Koegler, Kevin Wayne Kinzie, Murray Fisher, Jamie Livingston
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Patent number: 8011887Abstract: A rotor blade assembly is disclosed. The rotor blade assembly includes a main rotor blade, the main rotor blade including a pressure side and a suction side extending between a leading edge and a trailing edge, and an auxiliary rotor blade associated with the main rotor blade, the auxiliary rotor blade including a pressure side and a suction side extending between a leading edge and a trailing edge. The rotor blade assembly further includes a support member connecting the auxiliary rotor blade to the main rotor blade. The auxiliary rotor blade is configured to modify a lift force associated with the rotor blade assembly.Type: GrantFiled: July 21, 2010Date of Patent: September 6, 2011Assignee: General Electric CompanyInventors: Murray Fisher, Stefan Herr, David Cole Magnuson
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Publication number: 20110142666Abstract: A rotor blade assembly for a wind turbine is disclosed. The rotor blade assembly includes a rotor blade having surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root. The rotor blade further includes a noise reducer configured on a surface of the rotor blade, the noise reducer comprising a plurality of serrations, each of the plurality of serrations defining a centerline.Type: ApplicationFiled: November 15, 2010Publication date: June 16, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Roger Drobietz, Klaus Ulrich Koegler, Kevin Wayne Kinzie, Murray Fisher, Jamie Livingston
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Publication number: 20110142681Abstract: A rotor blade assembly is disclosed. The rotor blade assembly includes a main rotor blade, the main rotor blade including a pressure side and a suction side extending between a leading edge and a trailing edge, and an auxiliary rotor blade associated with the main rotor blade, the auxiliary rotor blade including a pressure side and a suction side extending between a leading edge and a trailing edge. The rotor blade assembly further includes a support member connecting the auxiliary rotor blade to the main rotor blade. The auxiliary rotor blade is configured to modify a lift force associated with the rotor blade assembly.Type: ApplicationFiled: July 21, 2010Publication date: June 16, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Murray Fisher, Stefan Herr, David Cole Magnuson
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Patent number: 7896614Abstract: A wind turbine includes an electrical stall sensor configured on a pressure surface of at least one turbine blade at a location to detect backflow in a stall condition. The stall sensor includes a flap pivotally configured on the respective pressure surface so as to be moved from a first position towards a second position by backflow over the pressure surface during a stall condition. A sensor circuit responds to movement of the flap between the first and second positions and generates a corresponding electrical signal that indicates the stall condition.Type: GrantFiled: April 30, 2009Date of Patent: March 1, 2011Assignee: General Electric CompanyInventor: Murray Fisher
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Publication number: 20100143129Abstract: A wind turbine includes an electrical stall sensor configured on a pressure surface of at least one turbine blade at a location to detect backflow in a stall condition. The stall sensor includes a flap pivotally configured on the respective pressure surface so as to be moved from a first position towards a second position by backflow over the pressure surface during a stall condition. A sensor circuit responds to movement of the flap between the first and second positions and generates a corresponding electrical signal that indicates the stall condition.Type: ApplicationFiled: April 30, 2009Publication date: June 10, 2010Applicant: GENERAL ELECTRIC COMPANYInventor: Murray Fisher
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Publication number: 20090074585Abstract: A wind generator and turbine blade includes a trailing edge having several serrations, a length of the serrations in each of a plurality of sections of the trailing edge is between approximately 10% and 40% of a mean chord for the corresponding section; and a length to width ratio of each of the serrations is between approximately 1:1 to 4:1.Type: ApplicationFiled: September 19, 2007Publication date: March 19, 2009Inventors: Klaus U. Koegler, Stefan Herr, Murray Fisher