Patents by Inventor Clifford H. Pemberton

Clifford H. Pemberton 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).

  • Fuel tank with a recessed fill cap
    Patent number: 5415316
    Abstract: A fuel tank comprises a rotationally molded tank wall having a recessed neck unitarily formed with the tank wall during the rotational molding process. The neck receives a correspondingly threaded cap so that a top surface of the cap remains substantially at the level of the tank wall surface when a stem on the cap is threadedly engaged in the correspondingly threaded neck of the tank. In addition, a process for recessing a fill cap in a fuel tank comprises rotational molding of a plastic powder to form a hollow body within at least two mold parts. An insert carried by the one of the mold parts forms a threaded neck recessed inwardly from the tank wall surface. In addition, the process molds a cap with a handle having a top surface at the level of the tank wall surface.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: May 16, 1995
    Assignee: C&V Leasing, Inc.
    Inventors: Clifford H. Pemberton, Robert M. Farmer