Patents by Inventor Johnny L. Wall

Johnny L. Wall 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).

  • Publication number: 20220413523
    Abstract: A system includes a source that provides air, a first compressor stage that receives the air from the source and is configured to compress the air to a first pressure, and a second compressor stage that receives the air from the first compressor stage and is configured to compress the air to a second pressure. The system also includes a first component, a second component, valves that control flow of the air, and a controller that is configured to control the valves according to a first control mode, in which the air is supplied to the first component by the first compressor stage, and a second control mode, in which the air is supplied to the second component by the second compressor stage.
    Type: Application
    Filed: June 2, 2022
    Publication date: December 29, 2022
    Inventors: Shi Yan, Peter L. Bielawski, Jia Tao, Johnny L. Wall, Islam M. Shawki, Jonathan L. Hall, Zheng Li
  • Patent number: 10759246
    Abstract: A stability control system that detects a change in a vehicle operating characteristic and sends a stabilizing command to an actuator system based on identifying the change is described. The actuator system applies a first magnetic field having a predetermined strength to an electropermanent magnet for a predetermined duration based on receiving the stabilizing command. The first magnetic field transitions the electropermanent magnet from a first state to a second state. The electropermanent magnet generates a second magnetic field in the second state. The second magnetic field modifies at least one of a spring constant or a mechanical resistance of a suspension component within a suspension system of the vehicle, and the electropermanent magnet retains the second state after the predetermined duration in absence of the first magnetic field.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: September 1, 2020
    Assignee: Apple Inc.
    Inventors: Jack Erdozain, Jr., Jeffrey A. Sewell, Johnny L. Wall, Colin Szechy