Patents by Inventor Gary D. Dawson

Gary D. Dawson 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).

  • Inletting device for fuel tank
    Patent number: 4741369
    Abstract: In a fill tube of a vehicle fuel tank, an inlet forming device for receiving the nozzle of an associated fuel pump for filling the fuel tank and including an apertured seal member adapted to encircle the fuel nozzle to prevent fuel vapors from escaping therebetween. The device includes at least one vent opening which is normally blocked by an overlying edge portion of the seal member, but which is movable from its overlying position outward to vent fuel tank pressure. The overlying portion of the seal is normally biased to a closed position by the natural resiliency of an adjacent open celled foamed plastic material which also acts as a filter when the overlying edge portion of the seal is moved to a more open vent position.
    Type: Grant
    Filed: February 12, 1987
    Date of Patent: May 3, 1988
    Assignee: Chrysler Motors Corporation
    Inventor: Gary D. Dawson
  • Vacuum controls for internal combustion engines
    Patent number: 3996905
    Abstract: A vacuum control system sourced by engine manifold vacuum particularly for exhaust gas recirculation (EGR) systems and carburetor idle enrichment systems wherein a timer means delays system operation for a predetermined period following engine start-up.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: December 14, 1976
    Assignee: Chrysler Corporation
    Inventor: Gary D. Dawson