Patents by Inventor Paul Luft

Paul Luft 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).

  • Publication number: 20080142111
    Abstract: This invention provides a fuel tank venting system for regulating the discharge of fuel vapors and of liquid fuel from a fuel tank. The fuel tank venting system includes fuel vapor vent tubes that are fully enclosed within the system and exit the fuel tank at a common location. Because the fuel vapor vent tubes are fully enclosed within the system, vent valves are not required at each vent point and permeation resistant tubing is not required. In this fuel tank venting system fuel is prevented from reaching the fuel vapor recovery canister under normal operating conditions and the fuel filler pipe serves as a liquid/vapor discriminator. In another embodiment the vent vapor tube does not extend beyond the highest fuel level in the fuel filler pipe because the fuel filler pipe pressure is lower than the fuel tank pressure due to the fuel filler pipe connectivity to the canister.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 19, 2008
    Inventors: Mark Osterbrink, Paul Luft