Patents by Inventor Thomas Edwin Pearson, Jr.

Thomas Edwin Pearson, Jr. 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).

  • Evaporative emission control system
    Patent number: 6367457
    Abstract: An evaporative emission control system for an internal combustion engine isolates the fuel tank from the engine during purging of a carbon canister used to store fuel vapor drawn from the fuel tank during refueling. The flow of vapor from the tank to the canister is controlled by a main vapor control valve, and the flow of vapor from the canister to the engine is controlled by a purge valve. Pressure transducers are used to independently sense vapor pressure in the tank and in the canister. An electronic controller operates the valves based in part on the pressure information generated by the pressure transducers.
    Type: Grant
    Filed: May 13, 2000
    Date of Patent: April 9, 2002
    Assignee: Ford Global Technologies, Inc
    Inventors: Douglas Joseph Mancini, Thomas C. Crowley, Thomas Edwin Pearson, Jr.