Patents by Inventor Paul M. Foster

Paul M. Foster 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).

  • Supplemental fuel vapor system
    Patent number: 4982715
    Abstract: A vapor utilization fuel system directs fuel vapor from a vehicle's fuel tank to an intake manifold on the vehicle's engine. The vapor is combusted in the normal course of engine operation. In one embodiment, a mixing canister combines additional air with the fuel vapor; the mixing canister is located on the fuel tank's fill tube. In a second embodiment, the fuel vapor can flow to either the intake manifold or to a conventional carbon canister when the engine is not running.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: January 8, 1991
    Inventor: Paul M. Foster