Patents by Inventor David Littlejohn

David Littlejohn 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: 12071229
    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: December 15, 2020
    Date of Patent: August 27, 2024
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: David Littlejohn, Sven Roy Lofstrom, Scott Oren Smith
  • 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: 11572206
    Abstract: A system for packaging includes a continuous flow wrap machine, a product reader, and a labeling unit. The product reader is configured to sense each product of the series of products transported on the infeed conveyor of the continuous flow wrap machine and to provide detected information for facilitating access to unique product information associated with each sensed product of the series of products. The labeling unit is adapted to apply visual representation of the unique product information to the tube formed in the continuous flow wrap machine while the tube is moving or to the resulting packaged product while the packaged product is moving.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: February 7, 2023
    Assignee: Sealed Air Corporation (US)
    Inventors: Russell T. Christman, David Littlejohn, Gary Wood, James Michaelian, Thomas P. Orsini, Michael A. Kalinowski, John Gilbert
  • Patent number: 11421724
    Abstract: The fastener includes a bolt, a nut, a sleeve, and a drive nut. The drive nut interfaces with the nut. The bolt is disposed through the nut, sleeve, and drive nut. The bolt comprises one or more threaded portions and a non-threaded portion. The fastener breaks-off at the non-threaded portion during installation. The installed fastener comprises a recess-free, flush surface with a workpiece.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: August 23, 2022
    Assignee: MONOGRAM AEROSPACE FASTENERS, INC.
    Inventors: Jerry Quaresma, David Littlejohn
  • 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
  • Patent number: D940731
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: January 11, 2022
    Assignee: Eli Lilly and Company
    Inventors: Christopher Todd Collins, Rebecca Morgan Eley, Kathryn Ann Kollett, Joshua David Littlejohn
  • Patent number: D1028004
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: May 21, 2024
    Assignee: ELI LILLY AND COMPANY
    Inventors: Korey Allen Clements, Christopher Todd Collins, Lela White Feldmeier, K. Shanté Freeman, Jerome Joseph Hodapp, III, Carol Liao, Joshua David Littlejohn
  • Patent number: D1028005
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: May 21, 2024
    Assignee: ELI LILLY AND COMPANY
    Inventors: Korey Allen Clements, Christopher Todd Collins, Lela White Feldmeier, K. Shanté Freeman, Jerome Joseph Hodapp, III, Carol Liao, Joshua David Littlejohn
  • Patent number: D1028006
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: May 21, 2024
    Assignee: ELI LILLY AND COMPANY
    Inventors: Korey Allen Clements, Christopher Todd Collins, Lela White Feldmeier, K. Shanté Freeman, Jerome Joseph Hodapp, III, Carol Liao, Joshua David Littlejohn
  • Patent number: D1028007
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: May 21, 2024
    Assignee: ELI LILLY AND COMPANY
    Inventors: Korey Allen Clements, Christopher Todd Collins, Lela White Feldmeier, K. Shanté Freeman, Jerome Joseph Hodapp, III, Carol Liao, Joshua David Littlejohn
  • Patent number: D1030695
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: June 11, 2024
    Assignee: ELI LILLY AND COMPANY
    Inventors: Korey Allen Clements, Christopher Todd Collins, Lela White Feldmeier, K. Shanté Freeman, Jerome Joseph Hodapp, III, Carol Liao, Joshua David Littlejohn
  • Patent number: D1060381
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: February 4, 2025
    Assignee: ELI LILLY AND COMPANY
    Inventors: Korey Allen Clements, Jerome Joseph Hodapp, III, Carol Liao, Joshua David Littlejohn, Camilla Yvonne Engebretsen Romano, Yuqiao Qin
  • Patent number: D1060382
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: February 4, 2025
    Assignee: ELI LILLY AND COMPANY
    Inventors: Korey Allen Clements, Jerome Joseph Hodapp, III, Carol Liao, Joshua David Littlejohn, Camilla Yvonne Engebretsen Romano, Yuqiao Qin
  • Patent number: D1060417
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: February 4, 2025
    Assignee: ELI LILLY AND COMPANY
    Inventors: Korey Allen Clements, Jerome Joseph Hodapp, III, Carol Liao, Joshua David Littlejohn, Camilla Yvonne Engebretsen Romano, Yuqiao Qin
  • Patent number: D1060420
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: February 4, 2025
    Assignee: ELI LILLY AND COMPANY
    Inventors: Korey Allen Clements, Jerome Joseph Hodapp, III, Carol Liao, Joshua David Littlejohn, Camilla Yvonne Engebretsen Romano, Yuqiao Qin
  • Patent number: D1066399
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: March 11, 2025
    Assignee: ELI LILLY AND COMPANY
    Inventors: Korey Allen Clements, Jerome Joseph Hodapp, III, Carol Liao, Joshua David Littlejohn, Camilla Yvonne Engebretsen Romano, Yuqiao Qin