Patents by Inventor Don Conrad Johnson

Don Conrad Johnson 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).

  • Patent number: 10865769
    Abstract: 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: Grant
    Filed: November 21, 2017
    Date of Patent: December 15, 2020
    Assignee: General Electric Company
    Inventors: 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
  • Patent number: 10598158
    Abstract: A method for detaching or installing a rotor blade from or to a hub of a wind turbine includes positioning the rotor blade toward a ground location between a three o'clock position and a nine o'clock position. The method also includes mounting a mechanical arm to an uptower location of the wind turbine. Further, the mechanical arm includes a torqueing tool at a distal end thereof. Thus, the method also includes removing or installing, via the torqueing tool, each of the plurality of hub fasteners so as to detach or attach the rotor blade from or to the hub.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: March 24, 2020
    Assignee: General Electric Company
    Inventors: Paul Howard Davidson, Stephanie Lohberg Willman, Santiago Murcia, Joshua Adam Klinghagen, Gregory Clarence Thomas, Michael Royce Johnson, Don Conrad Johnson, Ulrich Werner Neumann, Adam Sean Davis, Dean Thomas Roney, Kathleen Lynne Bentzel
  • Patent number: 10508645
    Abstract: A method for suspending a rotor blade uptower includes mounting a first end of a support structure at a first uptower location of the wind turbine. The method also includes securing the rotor blade to a second end of the support structure. Further, the method includes mounting at least one pulley block assembly between a second uptower location and the support structure. Moreover, the method includes routing at least one pulley cable from at least one winch over the at least one pulley block assembly. In addition, the method includes detaching the rotor blade from the hub of the wind turbine. Once the rotor blade is detached, the method includes rotating the support structure about the first end via coordinated winch operation so as to lower the rotor blade a predetermined distance away from the hub. Thus, the method also includes suspending the rotor blade at the predetermined distance away from the hub via the support structure.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: December 17, 2019
    Assignee: General Electric Company
    Inventors: Don Conrad Johnson, Daniel Leroy Olson, Adam Sean Davis
  • Publication number: 20190153994
    Abstract: 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: Application
    Filed: November 21, 2017
    Publication date: May 23, 2019
    Inventors: 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
  • Publication number: 20190024639
    Abstract: A method for detaching or installing a rotor blade from or to a hub of a wind turbine includes positioning the rotor blade toward a ground location between a three o'clock position and a nine o'clock position. The method also includes mounting a mechanical arm to an uptower location of the wind turbine. Further, the mechanical arm includes a torqueing tool at a distal end thereof. Thus, the method also includes removing or installing, via the torqueing tool, each of the plurality of hub fasteners so as to detach or attach the rotor blade from or to the hub.
    Type: Application
    Filed: July 20, 2017
    Publication date: January 24, 2019
    Inventors: Paul Howard Davidson, Stephanie Lohberg Willman, Santiago Murcia, Joshua Adam Klinghagen, Gregory Clarence Thomas, Michael Royce Johnson, Don Conrad Johnson, Ulrich Werner Neumann, Adam Sean Davis, Dean Thomas Roney, Kathleen Lynne Bentzel
  • Publication number: 20190017495
    Abstract: A method for suspending a rotor blade uptower includes mounting a first end of a support structure at a first uptower location of the wind turbine. The method also includes securing the rotor blade to a second end of the support structure. Further, the method includes mounting at least one pulley block assembly between a second uptower location and the support structure. Moreover, the method includes routing at least one pulley cable from at least one winch over the at least one pulley block assembly. In addition, the method includes detaching the rotor blade from the hub of the wind turbine. Once the rotor blade is detached, the method includes rotating the support structure about the first end via coordinated winch operation so as to lower the rotor blade a predetermined distance away from the hub. Thus, the method also includes suspending the rotor blade at the predetermined distance away from the hub via the support structure.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 17, 2019
    Inventors: Don Conrad Johnson, Daniel Leroy Olson, Adam Sean Davis
  • Patent number: 9951754
    Abstract: In one aspect, a method for assembling a tower section of a lattice tower structure for a wind turbine on a tower assembly fixture may generally include installing a first trolley onto a first fixture arm of the fixture and installing a second trolley onto a second fixture arm of the fixture. In addition, the method may include securing a first support leg of the tower section to the first trolley, securing a second support leg of the tower section to the second trolley and coupling at least one secondary support member between the first and seconds support legs.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: April 24, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Don Conrad Johnson, Cyler Barclay Beard, Todd D. Andersen, David D. Oliphant, Caroline Christine Williams, Jose Luis Virgen
  • Patent number: 9845612
    Abstract: A system for assembling a tower section of a lattice tower structure for a wind turbine may generally include a tower assembly fixture having a plurality of radially extending fixture arms, wherein each fixture arm extends between a first end and a second end. In addition, the system may include a plurality of trolleys. Each trolley may include a base frame configured to be coupled to one of the fixture arms between its first and second ends and a leg mount pivotally coupled to the base frame. The leg mount may be configured to be coupled to a bottom end of a support leg of the tower section such that, when each of the support legs is coupled to its respective leg mount, the support legs are supported above the tower assembly fixture at a substantially vertical orientation.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: December 19, 2017
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Don Conrad Johnson, Cyler Barclay Beard, Todd D. Andersen, David D. Oliphant, Caroline Christine Williams, Jose Luis Virgen
  • Publication number: 20170009747
    Abstract: In one aspect, a method for assembling a tower section of a lattice tower structure for a wind turbine on a tower assembly fixture may generally include installing a first trolley onto a first fixture arm of the fixture and installing a second trolley onto a second fixture arm of the fixture. In addition, the method may include securing a first support leg of the tower section to the first trolley, securing a second support leg of the tower section to the second trolley and coupling at least one secondary support member between the first and seconds support legs.
    Type: Application
    Filed: June 26, 2015
    Publication date: January 12, 2017
    Inventors: Don Conrad Johnson, Cyler Barclay Beard, Todd D. Andersen, David D. Oliphant, Caroline Christine Williams, Jose Luis Virgen
  • Publication number: 20160376807
    Abstract: A system for assembling a tower section of a lattice tower structure for a wind turbine may generally include a tower assembly fixture having a plurality of radially extending fixture arms, wherein each fixture arm extends between a first end and a second end. In addition, the system may include a plurality of trolleys. Each trolley may include a base frame configured to be coupled to one of the fixture arms between its first and second ends and a leg mount pivotally coupled to the base frame. The leg mount may be configured to be coupled to a bottom end of a support leg of the tower section such that, when each of the support legs is coupled to its respective leg mount, the support legs are supported above the tower assembly fixture at a substantially vertical orientation.
    Type: Application
    Filed: June 26, 2015
    Publication date: December 29, 2016
    Inventors: Don Conrad Johnson, Cyler Barclay Beard, Todd D. Andersen, David D. Oliphant, Caroline Christine Williams, Jose Luis Virgen
  • Publication number: 20130283814
    Abstract: A system includes a turbine. The turbine includes a rotor, a stator, and a cooling insert. The rotor includes multiple turbine blades. The stator surrounds the rotor and includes an inner wall surrounding the multiple turbine blades, an outer wall surrounding the inner wall, and a cooling chamber between the inner wall and the outer wall. The cooling insert extends through an opening in the outer wall into the cooling chamber. The insert includes a side wall extending around an axis, an end wall crosswise to the axis, a set of lateral ports extending through the side wall, and end ports extending through the end wall. The cooling insert is configured to direct a cooling fluid through the set of lateral ports and end ports into the cooling chamber.
    Type: Application
    Filed: April 25, 2012
    Publication date: October 31, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: David Richard Johns, Don Conrad Johnson
  • Publication number: 20110189000
    Abstract: Embodiments of the present invention provide a system for regulating a cooling fluid within a turbomachine. The system may include a plurality of bypass chambers, wherein each of the plurality of bypass chambers allows for the cooling fluid to pass from the compressor section to a wheelspace area. The system includes a plurality of angular passages that aid in the mixing of a cooling fluid with a working fluid in the wheelspace area.
    Type: Application
    Filed: March 22, 2011
    Publication date: August 4, 2011
    Inventors: Sivaraman Vedhagiri, Don Conrad Johnson