Patents by Inventor Jacob M. Moore

Jacob M. Moore 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: 12297757
    Abstract: A compact, modular, lost motion variable valve actuation assembly includes a dry start hydraulic circuit to enable quick priming of a lost motion master-slave circuit from a dry start reservoir to the master piston chamber during engine start. Motion of the master piston on engine startup may draw in fluid from the dry start hydraulic circuit. The dry start components may be integrated into a compact modular rocker shaft pedestal package suitable for retrofit on existing engine head assemblies. The master piston may include a push tube interface that includes a deep push tube cavity and lubrication capabilities in the master piston that provides for improved wear, stability, easy installation and alignment. The slave piston may be provided with a valve catch to reduce valve closing velocity during cycles involving lost-motion.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: May 13, 2025
    Assignee: Jacobs Vehicle Systems, Inc.
    Inventors: John A. Schwoerer, G. Michael Gron, Jr., Jacob M. Moore, Thomas P. Howell
  • Patent number: 11230951
    Abstract: A compact, modular, lost motion variable valve actuation assembly includes a dry start hydraulic circuit to enable quick priming of a lost motion master-slave circuit from a dry start reservoir to the master piston chamber during engine start. Motion of the master piston on engine startup may draw in fluid from the dry start hydraulic circuit. The dry start components may be integrated into a compact modular rocker shaft pedestal package suitable for retrofit on existing engine head assemblies. The master piston may include a push tube interface that includes a deep push tube cavity and lubrication capabilities in the master piston that provides for improved wear, stability, easy installation and alignment. The slave piston may be provided with a valve catch to reduce valve closing velocity during cycles involving lost-motion.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: January 25, 2022
    Assignee: JACOBS VEHICLE SYSTEMS, INC.
    Inventors: John A. Schwoerer, G. Michael Gron, Jr., Jacob M. Moore, Thomas P. Howell
  • Patent number: 10329969
    Abstract: A system that provides adjustable actuation timing of one or more valve(s) (16) in a piston engine includes a position sensor (12) and a variable valve actuation assembly (10). The valve(s) (16) can be intake and/or exhaust valves in an internal combustion engine of an automobile. The position sensor (12) takes position readings of the valve(s) (16) as the valve(s) (16) actuate in the piston engine. The variable valve actuation assembly (10) controls actuation timing of the valve(s) (16). Actuation timing of the valve(s) (16) is adjustable based, in part or more, upon one or more position reading(s) of the position sensor (12). The variable valve actuation assembly (10) can be a lost motion assembly (10).
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: June 25, 2019
    Assignee: Jacobs Vehicle Systems, Inc.
    Inventors: Roger T. Simpson, Jacob M. Moore, Alan Steines, John A. Schwoerer
  • Patent number: 7735466
    Abstract: An exhaust brake and method of operating an exhaust brake are disclosed. The exhaust brake may have a housing having a central opening and a boss with a central bore, wherein the central bore intersects the central opening. A butterfly gate may be pivotally mounted in the central opening. The butterfly gate may have a bypass opening provided in an outer edge of the butterfly gate, and an upstream side. A dual-diameter piston may be slide-ably disposed in the central bore. The piston may have a lower end received in the bypass opening and an upper end distal from the bypass opening. One or more passages may extend between the central opening and the central bore at the upstream side of the butterfly gate, and a spring may bias the piston lower end into the bypass opening. The piston lower end may selectively unblock the bypass opening responsive to the application of static exhaust gas pressure to the piston upper end.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: June 15, 2010
    Assignee: Jacobs Vehicle Systems, Inc.
    Inventors: Jacob M. Moore, Zdenek S. Meistrick, Neil E. Fuchs, Steven Botellio, Zhi Qiang Chu