Patents by Inventor Stephen D. Heath

Stephen D. Heath 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).

  • Method and apparatus for controlling displaced vapor emissions in motor vehicles
    Patent number: 3957025
    Abstract: A vapor emission control system adapted to accommodate displaced vapors generated during the filling of a motor vehicle storage tank, wherein a first storage tank is adapted to communicate sequentially with an intermediate vacuum accumulator and ultimately with the intake manifold of an internal combustion engine.In the preferred embodiment a dispensing nozzle is inserted into vapor sealing engagement with a first liquid storage tank wherein said liquid storage tank is equipped with a unidirectional self venting gas cap. Upon insertion of the dispensing nozzle a unidirectional bypass line normally closed is opened via an entry port flap actuator.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: May 18, 1976
    Assignee: Rohr Industries, Inc.
    Inventors: Stephen D. Heath, Lorenzo Borbolla, Jr.