Patents by Inventor Sven ROY Lofstrom

Sven ROY Lofstrom 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: 11834200
    Abstract: A method of bonding a blade cuff to a rotor blade includes installing the blade cuff to a root end of the rotor blade. The method includes mounting the rotor blade within a plurality of supports. The method includes coupling the blade cuff to a first fixture. The method includes installing a second fixture about the blade cuff. The method further includes applying localized and constant heat and pressure to the blade cuff via the second fixture.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: December 5, 2023
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Scott Oren Smith, David Littlejohn, Sven Roy Lofstrom
  • Patent number: 11584547
    Abstract: A bond fixture includes a support structure and a first assembly coupled to the support structure. The first assembly includes a frame defining a chamber and a first pressure pad and second pressure pad coupled to the frame opposite one another and positioned within the chamber. The second pressure pad is movable to control a pressure applied by the first pressure pad and the second pressure pad.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: February 21, 2023
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: David Littlejohn, Sven Roy Lofstrom, Scott Oren Smith
  • Patent number: 11511499
    Abstract: A bond assembly includes a fixture having a first section movably coupled to a second section. The first section and the second section are disposed opposite one another. A bladder assembly is mounted to at least one of the first section and the second section. The bladder assembly is configured to apply controlled, localized pressure and heat to a component receivable between the first section and the second section.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: November 29, 2022
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Sven Roy Lofstrom, Ryan Lehto
  • Patent number: 11331713
    Abstract: A bond fixture includes a frame that defines a chamber for receiving a component. At least one bladder assembly is mounted to the frame and extends into the chamber to apply a pressure to an adjacent surface of the component. A caul assembly is positionable about the component and receivable within the chamber. The caul assembly heats a localized portion of the component.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: May 17, 2022
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Sven Roy Lofstrom, David Littlejohn, Scott Oren Smith
  • Patent number: 11299293
    Abstract: A bond fixture includes a frame defining a chamber for receiving a component. At least one bladder assembly is connected to the frame. The at least one bladder assembly includes a pad for contacting the component. A position of the pad relative to the component is controlled by a pressure of the bladder assembly. A caul assembly is adapted to thermally couple to the component to heat a localized portion of the component.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: April 12, 2022
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: David Littlejohn, Sven Roy Lofstrom
  • Patent number: 11220331
    Abstract: A bond fixture for bonding a component includes a frame defining a chamber for receiving the component. A first pad and a second pad are mounted to the frame. At least one of the first pad and the second pad is movable relative to the frame to adjust a pressure applied to the component. A caul assembly is adapted to be disposed in thermal communication with the component. The caul assembly heats a localized portion of the component.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: January 11, 2022
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Sven Roy Lofstrom, David Littlejohn, Eric Boyle
  • Patent number: 11161627
    Abstract: A bond fixture includes a first fixture having a heater and a plurality of clamps. Each of the plurality of clamps includes a first member and a second member rotatable between a first position and a second position. A second fixture includes a root end lift translatable vertically between a retracted position and an extended position and a root end clamp translatable along a horizontal axis. The root end clamp is configured to cooperate with the root end.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: November 2, 2021
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Sven Roy Lofstrom, David Littlejohn, Eric Boyle, Scott Oren Smith
  • Publication number: 20210221537
    Abstract: A bond fixture includes a support structure and a first assembly coupled to the support structure. The first assembly includes a frame defining a chamber and a first pressure pad and second pressure pad coupled to the frame opposite one another and positioned within the chamber. The second pressure pad is movable to control a pressure applied by the first pressure pad and the second pressure pad.
    Type: Application
    Filed: April 8, 2021
    Publication date: July 22, 2021
    Applicant: Sikorsky Aircraft Corporation
    Inventors: David Littlejohn, Sven Roy Lofstrom, Scott Oren Smith
  • Patent number: 11046460
    Abstract: A holding fixture includes a first blade support assembly and a second blade support assembly. The second blade support assembly is spaced at a distance from the first blade support assembly and includes a base plate removably mounted to a milling machine, an adjustable conic support connectable to the base plate via a spacer block, and a blade adjustment assembly movable to control a pressure applied by the blade adjustment assembly.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: June 29, 2021
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Sven Roy Lofstrom, David Littlejohn
  • Patent number: 10981673
    Abstract: A bond fixture includes a support structure and a first assembly coupled to the support structure. The first assembly includes a frame defining a chamber and a first pressure pad and second pressure pad coupled to the frame opposite one another and positioned within the chamber. The second pressure pad is movable to control a pressure applied by the first pressure pad and the second pressure pad.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 20, 2021
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: David Littlejohn, Sven Roy Lofstrom, Scott Oren Smith
  • Publication number: 20210094682
    Abstract: A bond fixture includes a first frame defining a chamber configured to receive a leading edge of a rotor blade and a second frame pivotally coupled to the first frame. The second frame is movable between a first position and a second position. In the second position, the second frame restricts movement of the bond fixture relative to the rotor blade. At least one supporting assembly extends from the first frame towards the chamber. The at least one supporting assembly is adjustable to apply a pressure to an adjacent surface of the rotor blade.
    Type: Application
    Filed: December 15, 2020
    Publication date: April 1, 2021
    Applicant: Sikorsky Aircraft Corporation
    Inventors: David Littlejohn, Sven Roy Lofstrom, Scott Oren Smith
  • Patent number: 10875638
    Abstract: A bond fixture includes a first frame defining a chamber configured to receive a leading edge of a rotor blade and a second frame pivotally coupled to the first frame. The second frame is movable between a first position and a second position. In the second position, the second frame restricts movement of the bond fixture relative to the rotor blade. At least one supporting assembly extends from the first frame towards the chamber. The at least one supporting assembly is adjustable to apply a pressure to an adjacent surface of the rotor blade.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: December 29, 2020
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: David Littlejohn, Sven Roy Lofstrom, Scott Oren Smith
  • Publication number: 20200277085
    Abstract: A bond fixture including a plurality of supports mounted about a surface. At least one of the plurality of supports includes a vertical member and a hand crank operable to adjust a position of the vertical member. A first fixture is disposed at an end of the bond fixture and is movable relative to the surface. The first fixture includes a base and a support extending from the base. A second fixture includes a first member and a second member movably coupled. A fastener extending between the first member and the second member controls relative movement of the first member and the second member to define an opening there between. Each of the first member and the second member includes a plate having a heater formed therein.
    Type: Application
    Filed: May 15, 2020
    Publication date: September 3, 2020
    Inventors: Scott Oren Smith, David Littlejohn, Sven Roy Lofstrom
  • Patent number: 10752344
    Abstract: A tool for removing a bushing from a workpiece includes a tool body, a first reference, and a second reference for positioning the tool body on a workpiece. A saw slot is defined through the tool body to provide access to the workpiece for a saw blade. A saw guide is proximate the saw slot, the saw guide arranged to position a saw blade in a cutting plane spaced apart from the workpiece for removing a segment of a bushing fixed to the workpiece relative to the first and second references.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: August 25, 2020
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Ryan Lehto, Sven Roy Lofstrom
  • Patent number: 10703509
    Abstract: A bond fixture including a plurality of supports mounted about a surface. At least one of the plurality of supports includes a vertical member and a hand crank operable to adjust a position of the vertical member. A first fixture is disposed at an end of the bond fixture and is movable relative to the surface. The first fixture includes a base and a support extending from the base. A second fixture includes a first member and a second member movably coupled. A fastener extending between the first member and the second member controls relative movement of the first member and the second member to define an opening there between. Each of the first member and the second member includes a plate having a heater formed therein.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: July 7, 2020
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Scott Oren Smith, David Littlejohn, Sven Roy Lofstrom
  • Publication number: 20200156331
    Abstract: A bond assembly includes a fixture having a first section movably coupled to a second section. The first section and the second section are disposed opposite one another. A bladder assembly is mounted to at least one of the first section and the second section. The bladder assembly is configured to apply controlled, localized pressure and heat to a component receivable between the first section and the second section.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Inventors: Sven Roy Lofstrom, Ryan Lehto
  • Patent number: 10576699
    Abstract: A bond assembly includes a fixture having a first section movably coupled to a second section. The first section and the second section are disposed opposite one another. A bladder assembly is mounted to at least one of the first section and the second section. The bladder assembly is configured to apply controlled, localized pressure and heat to a component receivable between the first section and the second section.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: March 3, 2020
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Sven Roy Lofstrom, Ryan Lehto
  • Patent number: 10569906
    Abstract: A method of making a rotor blade assembly includes receiving a sheath assembly and a blade body at a blade assembly tool. The sheath assembly is spread by applying force to an interior surface of the sheath assembly. The blade body is inserted within the interior of the sheath assembly, registered with the sheath assembly, and the force removed from the interior surface of the sheath assembly such that the sheath assembly collapses on the blade body.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: February 25, 2020
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: David Littlejohn, Sven Roy Lofstrom, Eric C. Boyle
  • Publication number: 20200001347
    Abstract: A bond fixture includes a frame that defines a chamber for receiving a component. At least one bladder assembly is mounted to the frame and extends into the chamber to apply a pressure to an adjacent surface of the component. A caul assembly is positionable about the component and receivable within the chamber. The caul assembly heats a localized portion of the component.
    Type: Application
    Filed: September 11, 2019
    Publication date: January 2, 2020
    Inventors: Sven Roy Lofstrom, David Littlejohn, Scott Oren Smith
  • Publication number: 20190367187
    Abstract: A holding fixture includes a first blade support assembly and a second blade support assembly. The second blade support assembly is spaced at a distance from the first blade support assembly and includes a base plate removably mounted to a milling machine, an adjustable conic support connectable to the base plate via a spacer block, and a blade adjustment assembly movable to control a pressure applied by the blade adjustment assembly.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 5, 2019
    Inventors: Sven Roy Lofstrom, David Littlejohn