Patents by Inventor John A. Walworth

John A. Walworth 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).

  • Switching type driver circuit for fuel injector
    Patent number: 4479161
    Abstract: A switching type control unit (20) for activating fuel injectors (50) of an internal combustion engine. The control unit (20) including a plurality of switching circuits (60) for turning on and off associated hybrid power circuits (80). The hybrid power circuits (80) communicate the increased level of voltage generated by a single boost voltage generator (70) to particular injectors (50).
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: October 23, 1984
    Assignee: The Bendix Corporation
    Inventors: Robert S. Henrich, John A. Walworth