Patents by Inventor John Matthew Gray

John Matthew Gray 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).

  • Hydrocarbon vapor emission control
    Patent number: 8376000
    Abstract: A gasoline vapor treating system includes a single hydrocarbon filter apparatus interconnected to a fuel tank having a range of vapor pressures therein, said filter apparatus receiving hydrocarbon vapors from said tank for one vapor pressure in said fuel tank and said filter apparatus delivering air and hydrocarbon vapor to said tank from said filter responsive to another vapor pressure in said tank lower than said one vapor pressure, said filter operated serially between hydrocarbon loading and hydrocarbon unloading cycles without reference to any other hydrocarbon removal apparatus. A balance nozzle includes a mechanism to mechanically operate a vapor valve therein before the fuel valve is opened.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: February 19, 2013
    Assignee: Delaware Capital Formation, Inc.
    Inventors: John Matthew Gray, Timothy M. Garrison
  • HYDROCARBON VAPOR EMISSION CONTROL
    Publication number: 20070267089
    Abstract: A gasoline vapor treating system includes a single hydrocarbon filter apparatus interconnected to a fuel tank having a range of vapor pressures therein, said filter apparatus receiving hydrocarbon vapors from said tank for one vapor pressure in said fuel tank and said filter apparatus delivering air and hydrocarbon vapor to said tank from said filter responsive to another vapor pressure in said tank lower than said one vapor pressure, said filter operated serially between hydrocarbon loading and hydrocarbon unloading cycles without reference to any other hydrocarbon removal apparatus. A balance nozzle includes a mechanism to mechanically operate a vapor valve therein before the fuel valve is opened.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 22, 2007
    Inventors: John Matthew Gray, Timothy M. Garrison