Patents Assigned to Hartwell Corporation
  • Patent number: 11866189
    Abstract: A latching system for releasably securing a first structure relative to a second structure. The latching system includes a latch assembly coupled to the first structure and a keeper assembly coupled to the second structure. The latch assembly is selectively engageable with the keeper assembly to hold the first structure against movement relative to the second structure.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: January 9, 2024
    Assignee: Hartwell Corporation
    Inventor: Bo D. Artin
  • Patent number: 11773622
    Abstract: A latch mechanism includes a hook-handle assembly coupled to a first panel and a clevis coupled to a second panel. The hook-handle assembly engages the clevis to secure the first panel relative to the second panel.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: October 3, 2023
    Assignee: Hartwell Corporation
    Inventors: Thomas J. Helsley, Lane Dennis Dalan
  • Patent number: 11530557
    Abstract: A rotary latch mechanism for releasably securing a first structure relative to a second structure. The rotary latch mechanism includes a housing adapted to be attached to the first structure, an actuator assembly coupled to the housing, a linkage coupled to the actuator assembly and arranged for movement along the housing with movement of the actuator assembly, and a bolt coupled to the housing and to the linkage, the bolt arranged for pivotal movement relative to the housing with movement of the linkage. The bolt is adapted to move between a latched position engaged with the second structure to secure the first structure relative to the second structure and an unlatched position spaced apart from the second structure to allow movement of the first structure relative to the second structure.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: December 20, 2022
    Assignee: HARTWELL CORPORATION
    Inventor: John J. Boyer
  • Patent number: 11421459
    Abstract: A hinge is coupled to a first component and a second component. The hinge supports the second component for movement relative to the first component between a closed position covering an opening through the first component and an opened position displaced from the opening. The hinge includes a first bracket coupled to the second component, a second bracket coupled to the first component, a support link coupled to the first and second brackets, and a control link coupled to the first and second brackets. Rotation of the support link relative to the first bracket causes rotation of the first component relative to the second component and relative to the support link.
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: August 23, 2022
    Assignee: Hartwell Corporation
    Inventors: Brandon L. Spoelstra, Michael A. Grande
  • Patent number: 11408210
    Abstract: A latch mechanism includes a handle connected to a pin by a linkage. The linkage converts rotation of the handle relative to a frame into axial movement of the pin between extended and retracted positions relative to the frame. The pin engages with a pre-load adjustment mechanism in the extended position to apply a pre-load through the linkage that biases the pin toward the extended position. The pre-load adjustment mechanism is adjustable to set the pre-load through the linkage to a predetermined value as selected by a user.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: August 9, 2022
    Assignee: Hartwell Corporation
    Inventors: Brody Wayne Collins, Bo D. Artin
  • Patent number: 11358701
    Abstract: A hinge is coupled to a first component and a second component. The hinge supports the second component for movement relative to the first component between a closed position covering an opening through the first component and an opened position displaced from the opening.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: June 14, 2022
    Assignee: Hartwell Corporation
    Inventor: Thomas J. Helsley
  • Patent number: 11193305
    Abstract: A latch mechanism includes a hook-handle assembly coupled to a first panel and a clevis coupled to a second panel. The hook-handle assembly engages the clevis to secure the first panel relative to the second panel.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: December 7, 2021
    Assignee: Hartwell Corporation
    Inventors: Thomas J. Helsley, Lane Dennis Dalan
  • Patent number: 11053717
    Abstract: A hold open rod assembly includes an outer tubular structure and an inner tubular structure positioned for telescoping movement relative to the outer tubular structure. A locking mechanism retains the hold open rod assembly in an extended state to support a panel of an aircraft in an open position at the selection of a user.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: July 6, 2021
    Assignee: Hartwell Corporation
    Inventor: Bo D. Artin
  • Patent number: 11002046
    Abstract: A latch mechanism includes a hook, a displaceable handle, and links connected between the handle and hook for the operation of the latch mechanism. The handle and links cooperate with the hook to hold the latch mechanism in a locked position.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: May 11, 2021
    Assignee: Hartwell Corporation
    Inventors: Simon Jeongwoo Kim, Bo Dumitru Artin
  • Patent number: 10767404
    Abstract: A hinge is coupled to a first component and a second component. The hinge supports the second component for movement relative to the first component between a closed position covering an opening through the first component and an opened position displaced from the opening. The hinge includes a first bracket coupled to the second component, a second bracket coupled to the first component, a support link coupled to the first and second brackets, and a control link coupled to the first and second brackets. Rotation of the support link relative to the first bracket causes rotation of the first component relative to the second component and relative to the support link.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: September 8, 2020
    Assignee: Hartwell Corporation
    Inventors: Brandon L. Spoelstra, Michael A. Grande
  • Patent number: 10670063
    Abstract: A hold open rod assembly includes an outer tubular structure and an inner tubular structure positioned for telescoping movement relative to the outer tubular structure. A locking mechanism retains the hold open rod assembly in an extended state to support a panel of an aircraft in an open position at the selection of a user.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: June 2, 2020
    Assignee: Hartwell Corporation
    Inventor: Bo D. Artin
  • Patent number: 10443279
    Abstract: A latch mechanism includes a hook, a displaceable handle, and links connected between the handle and hook for the operation of the latch mechanism. The handle and links cooperate with the hook to hold the latch mechanism in a locked position.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: October 15, 2019
    Assignee: HARTWELL CORPORATION
    Inventors: Simon J. Kim, Bo D. Artin
  • Patent number: 10392830
    Abstract: A latch mechanism includes a hook-handle assembly coupled to a first panel and a clevis coupled to a second panel. The hook-handle assembly engages the clevis to secure the first panel relative to the second panel.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: August 27, 2019
    Assignee: Hartwell Corporation
    Inventors: Thomas J. Helsley, Lane Dennis Dalan
  • Patent number: 9650807
    Abstract: The present disclosure includes a tool operated channel latch used to secure a panel against a structure. The latch includes a bracket which mounts to a movable panel and includes an actuating mechanism to open and close the latch. A bolt is pivotably retained relative to the bracket for engaging against the structure closed by the panel. A lock assembly is carried on the actuator to engage a link which is movably coupled with both the bolt and the actuator. The lock assembly includes extending portions to engage at least one corresponding opening of the link. The link provides an over center toggle condition to retain the latch in a locked position until intentionally actuated by an operator.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: May 16, 2017
    Assignee: Hartwell Corporation
    Inventor: Thomas John Helsley
  • Patent number: 9580945
    Abstract: The present disclosure includes a telescoping hold open rod which is controllably lockable and unlockable for use in holding a panel such as a nacelle open to provide a user access to an opening covered by the panel. The hold open rod is useful in allowing the rod to be unlocked and telescopically collapsed. The rod can be locked into a telescopically extended position to maintain the panel in an open position relative to the opening to facilitate access to the opening without the rod telescoping closed. A retention assembly includes structures and devices to maintain the rod in an open condition although subject to compressive loads.
    Type: Grant
    Filed: November 3, 2013
    Date of Patent: February 28, 2017
    Assignee: Hartwell Corporation
    Inventor: Bo D. Artin
  • Patent number: 9500014
    Abstract: The present disclosure includes a hinge assembly for use in a hinged attachment of a panel relative to a frame and providing movement of the panel relative to the frame. A link which provides an extension or reach motion and positioning of the assembly, shown for purposes of illustration and not limitation in the form of a gooseneck arm, is provided in the hinge assembly to facilitate an extended range of motion of the hinge assembly. A first spherical bearing assembly and a second spherical bearing assembly are operatively associated with a bearing end of the link to provide multiple degrees of motion while securely retaining the panel relative to the frame. The hinge is intended to provide universal application of a single version of a hinge which can be used in multiple locations as facilitated by the multiple degrees of motion provided by the bearing end of the link.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: November 22, 2016
    Assignee: Hartwell Corporation
    Inventors: Douglas Soren Nielsen, Timothy S. Rozema
  • Patent number: 9169678
    Abstract: A latch mechanism for use in attaching portions or panels on an aircraft. The latch mechanism and related method include a detent mechanism for releasably coupling a bolt portion of the latch to a handle portion of the latch. The latch allows the bolt and handle to conjointly pivot with respect to a corresponding mounting bracket. The latch operates to relieve pressure in an excess pressure condition when the forces associated with the detention mechanism are overcome.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: October 27, 2015
    Assignee: Hartwell Corporation
    Inventor: Timothy S. Rozema
  • Patent number: 8925979
    Abstract: A latching system for releasably securing a first member to a second member in a closed position. The latching system includes a command latch assembly comprising a hook latch assembly including a handle selectively moveable from a first handle position toward a second handle position and a hook member adapted to selectively engage a first keeper when the handle is in the first handle position and to disengage from the first keeper when the handle is moved to the second handle position. The latching system also includes a remotely located slave latch assembly comprising a pin latch assembly adapted to secure a second keeper to the pin latch assembly when the handle of the hook latch assembly is in the first handle position and to disengage the second keeper when the handle of the hook latch assembly is moved to the second handle position.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: January 6, 2015
    Assignee: Hartwell Corporation
    Inventors: Manuel Andres Hernandez, Thomas J. Helsley, Timothy S. Rozema
  • Patent number: 8919829
    Abstract: A pressure relief latch for use in securing panels on an air-craft. The latch includes an apparatus and method to retain the latch in a latched condition under certain conditions. The latch includes a detention assembly which includes at least a portion which has a coefficient of thermal expansion which differs from a housing of the latch.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: December 30, 2014
    Assignee: Hartwell Corporation
    Inventor: James R. Hernandez
  • Patent number: D973463
    Type: Grant
    Filed: August 2, 2022
    Date of Patent: December 27, 2022
    Assignee: HARTWELL CORPORATION
    Inventors: Thomas J. Helsley, Lane Dennis Dalan