Fuel fill tube assembly

Abstract

A fuel tank fill tube assembly is disclosed for use with a conventional gasoline fill nozzle. The assembly includes a fill tube having a first tubular and cylindrical main body with a predetermined inside diameter. The fill tube further includes an enlarged diameter inlet portion joined at one end to one end of the main body. This inlet portion has a second predetermined diameter which is greater than the diameter of the main body. Both the main body and inlet portions are coaxial with each other. The inlet portion is dimensioned so that the gas fill nozzle is insertable through the inlet portion and, upon insertion, a free end of the gasoline fill nozzle is positioned within the interior of the main body. Additionally, the diameter of the main body is configured so that, upon fuel flow from the gasoline fill nozzle into the interior of the main body, a liquid seal is formed by the fuel flow from the gasoline fill nozzle within the main body.

Dependencies are inferred from the claim text.