Patents by Inventor Jonathan Paul Workman

Jonathan Paul Workman 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).

  • Redundant electrohydraulic positioning control system
    Patent number: 11572901
    Abstract: The subject matter of this specification can be embodied in, among other things, an electrohydraulic positioning control system that includes a shuttle valve configured to direct fluid flow between a selectable one of a first fluid port and a second fluid port, and a fluid outlet configured to be fluidically connected to a fluid actuator, a first servo valve controllable to selectably permit and block flow between the first fluid port, a fluid source, and a fluid drain, a second servo valve controllable to selectably permit and block flow between the second fluid port, the fluid source, and the fluid drain, a first servo controller configured to provide a first health signal and control the first servo valve based on a second health signal, and a second servo controller configured to provide the second health signal and control the second servo valve based on the first health signal.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: February 7, 2023
    Assignee: Woodward, Inc.
    Inventors: Jonathan Paul Workman, Gregory A. Molenaar, Marek Kazimierz Redzina, Krzysztof Sutkowski
  • Redundant Electrohydraulic Positioning Control System
    Publication number: 20210285466
    Abstract: The subject matter of this specification can be embodied in, among other things, an electrohydraulic positioning control system that includes a shuttle valve configured to direct fluid flow between a selectable one of a first fluid port and a second fluid port, and a fluid outlet configured to be fluidically connected to a fluid actuator, a first servo valve controllable to selectably permit and block flow between the first fluid port, a fluid source, and a fluid drain, a second servo valve controllable to selectably permit and block flow between the second fluid port, the fluid source, and the fluid drain, a first servo controller configured to provide a first health signal and control the first servo valve based on a second health signal, and a second servo controller configured to provide the second health signal and control the second servo valve based on the first health signal.
    Type: Application
    Filed: March 15, 2021
    Publication date: September 16, 2021
    Inventors: Jonathan Paul Workman, Gregory A. Molenaar, Marek Kazimierz Redzina, Krzysztof Sutkowski