Patents by Inventor Jason C. Clifford

Jason C. Clifford 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: 11898373
    Abstract: A motorized latch retraction system for transitioning a latch of an exit device from a latched position to an unlatched position is provided. The motorized latch retraction system includes a lock indicator indicating the latched or unlatched position of the latch and a floating motor.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: February 13, 2024
    Assignee: dormakaba USA Inc.
    Inventors: Jamison D. Woodley, Jason C. Clifford, Xiaohui Yan, Can Zhang
  • Patent number: 11885152
    Abstract: Lock indicators useable to signal the locked or unlocked state of a lock at both sides of a door selectively secured by the lock. Lock indicators include a first cuff for receiving an input causing the first cuff to transition from a first position to a second position associated with the locked state and the unlocked state. The lock indicators include a second cuff for receiving input from the first cuff via a transmission rod causing the second cuff to transition from a first position to a second position associated with the locked state and the unlocked state.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: January 30, 2024
    Assignee: dormakaba USA Inc.
    Inventor: Jason C. Clifford
  • Patent number: 11814873
    Abstract: Lock indicators useable to signal the locked or unlocked state of one side of a cylindrical lock across the door selectively secured by the lock. For example, the present disclosure provides a cylindrical lock having an entry function with an indicator viewable by occupants of an area secured by the cylindrical lock. The lock indicators are magnetically driven.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: November 14, 2023
    Assignee: dormakaba USA Inc.
    Inventor: Jason C. Clifford
  • Patent number: 11702862
    Abstract: A plug assembly including a plug, a sidebar movably mounted on the plug, and a plurality of rack pins seated in the plug. The sidebar is biased to an outer position in which the sidebar extends beyond an outer surface of the plug. Each rack pin includes a key-following leg and a sidebar-engaging leg. The sidebar-engaging leg includes at least one true gate. When a true gate of each rack pin is aligned with the sidebar, the sidebar is free to move radially inward to an inner position.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: July 18, 2023
    Assignee: Schlage Lock Company LLC
    Inventors: Brian E. Walls, Jason C. Clifford, Scott D. Welsby
  • Patent number: 11613910
    Abstract: A system including a lock class having a plurality of lock families, with each lock family including a plurality of lock cylinders. Each of the lock families has a control pin location which is different from the control pin location of another of the lock families within the lock class. Each of the lock cylinders generally includes a shell, a plug rotatably mounted in the shell, and a control ring rotatably mounted on the plug at the control pin location of the lock family of which the lock cylinder is a member, and a control pin operable to selectively couple the plug with the control ring. Each lock family may be associated with a control key family. Each control key family may include a plurality of control keys, each of which may have a control bitting configured to urge control pins of the associated lock family to a coupling position.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: March 28, 2023
    Assignee: Schlage Lock Company LLC
    Inventor: Jason C. Clifford
  • Publication number: 20220003020
    Abstract: Lock indicators useable to signal the locked or unlocked state of a lock at both sides of a door selectively secured by the lock. Lock indicators include a first cuff for receiving an input causing the first cuff to transition from a first position to a second position associated with the locked state and the unlocked state. The lock indicators include a second cuff for receiving input from the first cuff via a transmission rod causing the second cuff to transition from a first position to a second position associated with the locked state and the unlocked state.
    Type: Application
    Filed: June 22, 2021
    Publication date: January 6, 2022
    Inventor: Jason C. Clifford
  • Publication number: 20210372161
    Abstract: Lock indicators useable to signal the locked or unlocked state of one side of a cylindrical lock across the door selectively secured by the lock. For example, the present disclosure provides a cylindrical lock having an entry function with an indicator viewable by occupants of an area secured by the cylindrical lock. The lock indicators are magnetically driven.
    Type: Application
    Filed: February 12, 2021
    Publication date: December 2, 2021
    Inventor: Jason C. Clifford
  • Publication number: 20210372162
    Abstract: Lock indicators useable to signal the locked or unlocked state of a lock where the lock indicator is usable with an adjustable rose for accommodating various door thicknesses.
    Type: Application
    Filed: February 12, 2021
    Publication date: December 2, 2021
    Inventors: Jason C. Clifford, Yang Wei
  • Publication number: 20210363785
    Abstract: A motorized latch retraction system for transitioning a latch of an exit device from a latched position to an unlatched position is provided. The motorized latch retraction system includes a lock indicator indicating the latched or unlatched position of the latch and a floating motor.
    Type: Application
    Filed: May 18, 2021
    Publication date: November 25, 2021
    Inventors: Jamison D. Woodley, Jason C. Clifford, Xiaohui Yan, Can Zhang
  • Publication number: 20210172200
    Abstract: A plug assembly including a plug, a sidebar movably mounted on the plug, and a plurality of rack pins seated in the plug. The sidebar is biased to an outer position in which the sidebar extends beyond an outer surface of the plug. Each rack pin includes a key-following leg and a sidebar-engaging leg. The sidebar-engaging leg includes at least one true gate. When a true gate of each rack pin is aligned with the sidebar, the sidebar is free to move radially inward to an inner position.
    Type: Application
    Filed: August 18, 2020
    Publication date: June 10, 2021
    Inventors: Brian E. Walls, Jason C. Clifford, Scott D. Welsby
  • Patent number: 10745937
    Abstract: A plug assembly including a plug, a sidebar movably mounted on the plug, and a plurality of rack pins seated in the plug. The sidebar is biased to an outer position in which the sidebar extends beyond an outer surface of the plug. Each rack pin includes a key-following leg and a sidebar-engaging leg. The sidebar-engaging leg includes at least one true gate. When a true gate of each rack pin is aligned with the sidebar, the sidebar is free to move radially inward to an inner position.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: August 18, 2020
    Assignee: Schlage Lock Company LLC
    Inventors: Brian E. Walls, Jason C. Clifford, Scott D. Welsby
  • Publication number: 20190257115
    Abstract: A system including a lock class having a plurality of lock families, with each lock family including a plurality of lock cylinders. Each of the lock families has a control pin location which is different from the control pin location of another of the lock families within the lock class. Each of the lock cylinders generally includes a shell, a plug rotatably mounted in the shell, and a control ring rotatably mounted on the plug at the control pin location of the lock family of which the lock cylinder is a member, and a control pin operable to selectively couple the plug with the control ring. Each lock family may be associated with a control key family. Each control key family may include a plurality of control keys, each of which may have a control bitting configured to urge control pins of the associated lock family to a coupling position.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Inventor: Jason C. Clifford
  • Patent number: 10273717
    Abstract: A system including a lock class having a plurality of lock families, with each lock family including a plurality of lock cylinders. Each of the lock families has a control pin location which is different from the control pin location of another of the lock families within the lock class. Each of the lock cylinders generally includes a shell, a plug rotatably mounted in the shell, and a control ring rotatably mounted on the plug at the control pin location of the lock family of which the lock cylinder is a member, and a control pin operable to selectively couple the plug with the control ring. Each lock family may be associated with a control key family. Each control key family may include a plurality of control keys, each of which may have a control bitting configured to urge control pins of the associated lock family to a coupling position.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: April 30, 2019
    Assignee: Schlage Lock Company LLC
    Inventor: Jason C. Clifford
  • Publication number: 20180305954
    Abstract: A plug assembly including a plug, a sidebar movably mounted on the plug, and a plurality of rack pins seated in the plug. The sidebar is biased to an outer position in which the sidebar extends beyond an outer surface of the plug. Each rack pin is a single-piece unitary structure including a key-following leg and a sidebar-engaging leg. The sidebar-engaging leg includes at least one true gate and a plurality of false gates. When a true gate of each rack pin is aligned with the sidebar, the sidebar is free to move radially inward to an inner position.
    Type: Application
    Filed: May 29, 2018
    Publication date: October 25, 2018
    Inventors: Brian E. Walls, Jason C. Clifford, Scott D. Welsby
  • Patent number: 10024079
    Abstract: A plug assembly including a plug, a sidebar movably mounted on the plug, and a plurality rack pins seated in the plug. The sidebar is biased to an outer position in which the sidebar extends beyond an outer surface, of the plug. Each rack pin is a single-piece unitary structure including a key-following leg and a sidebar-engaging leg. The sidebar engaging leg includes at least one true, gate and a plurality of false gates. When a true gate of each rack pin is aligned with the sidebar, the sidebar is free to move radially inward to an inner position.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: July 17, 2018
    Assignee: Schlage Lock Company LLC
    Inventors: Brian E. Walls, Jason C. Clifford, Scott D. Welsby
  • Publication number: 20170152678
    Abstract: A system including a lock class having a plurality of lock families, with each lock family including a plurality of lock cylinders. Each of the lock families has a control pin location which is different from the control pin location of another of the lock families within the lock class. Each of the lock cylinders generally includes a shell, a plug rotatably mounted in the shell, and a control ring rotatably mounted on the plug at the control pin location of the lock family of which the lock cylinder is a member, and a control pin operable to selectively couple the plug with the control ring. Each lock family may be associated with a control key family. Each control key family may include a plurality of control keys, each of which may have a control bitting configured to urge control pins of the associated lock family to a coupling position.
    Type: Application
    Filed: December 1, 2016
    Publication date: June 1, 2017
    Inventor: Jason C. Clifford
  • Publication number: 20160376814
    Abstract: A plug assembly including a plug, a sidebar movably mounted on the plug, and a plurality rack pins seated in the plug. The sidebar is biased to an outer position in which the sidebar extends beyond an outer surface, of the plug. Each rack pin is a single-piece unitary structure including a key-following leg and a sidebar-engaging leg. The sidebar engaging leg includes at least one true, gate and a plurality of Use gates. When a true gate of each rack pin is aligned with the sidebar, the sidebar is free to move radially inward to an inner position.
    Type: Application
    Filed: September 6, 2016
    Publication date: December 29, 2016
    Inventors: Brian E. Walls, Jason C. Clifford, Scott D. Welsby
  • Patent number: 9523217
    Abstract: A key and lock are provided. The key is provided with a blade having a longitudinal axis. The blade is provided with a channel extending along at least a portion of the blade and along the longitudinal axis. One or more section members is disposed within the channel and coupled to the blade. The section member is capable of movement relative to the blade in the channel. A lock having a keyway and an associated tortuous path to receive the section members as the blade is inserted in the keyway is also provided.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: December 20, 2016
    Assignee: Schlage Lock Company LLC
    Inventor: Jason C. Clifford
  • Patent number: 9441397
    Abstract: Systems, methods and devices relating to lock assemblies for doors are disclosed. The lock assemblies include an end cap that couples a tail piece, cam or other latch operating mechanism to the plug of the lock assembly so that the latch operating mechanism rotates with rotation of the plug to operate a latch. The end cap includes a plug engaging portion that is configured to interfit with an end cap receiving portion of the plug to axially and rotatably fix the end cap to the plug.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: September 13, 2016
    Assignee: Schlage Lock Company LLC
    Inventors: Jason C. Clifford, Skyler K. Biek, Kenneth M. Curtis, Dale B. Shillington, II, David K. Matteucci
  • Patent number: 9103139
    Abstract: An illustrative key includes first and second substantially vertical blades being connected by a substantially horizontal connecting member such that an axial channel is formed between the two blades. Members may be slidingly coupled to the connecting member such that the members are moveable into the channel.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: August 11, 2015
    Assignee: Schlage Lock Company LLC
    Inventor: Jason C. Clifford