Patent ID: 7793682

Claim:
A valve assembly able to be mounted with a liquid container, the valve assembly comprising: a housing having a passageway that extends through the housing, and having openings for liquid in the container to pass in and out of the passageway; a liquid inlet, forming part of the housing, the liquid inlet allowing fluid to pass into the passageway of the housing; an inlet float valve mounted within the housing, the inlet float valve movable between an open position that permits the flow of liquid through the liquid inlet and into the passageway and a closed position that does not permit the flow of liquid through the liquid inlet and into the passageway; and a breather float valve mounted within the housing, the breather float valve movable with liquid level in the housing between an open position to allow gas to pass through the passageway and out of the housing, and a closed position that prevents liquid from passing through the passageway and out of the housing; the valve assembly characterized in that it includes a relief valve that is movable between an open position and a closed position to allow pressure to be relieved from the container.