Abstract: A valve assembly disposed in a nozzle of a fuel-dispensing pump that, when in an open, operative position, freely allows fuel to flow therethrough. In a closed position, fuel is prevented from dripping from the end of the fuel-dispensing nozzle. A first embodiment provides a spherical or flat, spring-loaded one-way sealing element or check valve that is forced away from the dispensing end of the nozzle to allow fuel to flow therefrom. When fuel dispensing is complete, the check valve seals the nozzle. In a second embodiment, apertures in a cap are rotated between an open and a closed orientation to allow or block fuel passage depending upon their angular position. The valve assembly is press fitted into a conventional fuel-dispensing nozzle.

Abstract: There is provided a one-way gasoline valve that is functional with conventional gasoline dispensing pumps in the United States today. An outer tubing body is open at both ends. One end is threaded to allow it to be placed into the end of a threaded gasoline dispensing pump nozzle assembly. A crossbar is provided, attached to a spring. This spring runs the length of the outer tubing, and has a large metal ball permanently attached to it at the end of the outer tubing body that is not threaded. This ball rests in position against a curved surface of the outer tubing that conforms to the curvature of the ball.