Patents by Inventor Earl Clapper

Earl Clapper 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).

  • Patent number: 4746089
    Abstract: A flat magnet is secured to the interior surface of the access door for an automotive vehicle fuel tank filling inlet. When the vehicle is to be refueled the fuel tank cap is removed from the filling inlet and placed against the magnet on the interior surface of the access door. The fuel tank cap is thereupon releasably held by the force of magnetism against the inside surface of the access door until it is removed therefrom and replaced on the filling inlet. The fuel tank cap is thereby safeguarded and loss of the cap is prevented.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: May 24, 1988
    Inventor: Earl Clapper