Patents by Inventor Mark A. Laduke

Mark A. Laduke 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).

  • Misfueling prevention device
    Patent number: 6966349
    Abstract: A misfueling prevention device is adapted to prevent an undesired fuel nozzle from being used to fill a desired fuel tank and to permit the filling of the tank by a desired fuel nozzle having a diameter larger than a diameter of the undesired fuel nozzle. The device includes an outer filler tube having an inner diameter and an inner filler tube having inner and outer diameters. The inner diameter of the inner filler tube defines a fuel passageway. The inner diameter of the outer filler tube and the outer diameter of the inner filler tube define a space therebetween. The device also includes at least one support which supports the inner filler tube within the outer filler tube.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: November 22, 2005
    Inventor: Mark A. Laduke