Patent ID: 7493894

Claim:
A closure device for a tank assembly, the tank assembly including a tank wall defining an interior and an exterior, a liquid being containable in the interior, vapor being produceable from the liquid, the closure device comprising: a closure housing selectively connected to the tank assembly and defining a flow path between the interior and the exterior; adsorption media supported by the closure housing, a flow path being provided from the interior of the tank assembly, through the adsorption media and to the exterior of the tank assembly, vapor being routed along the flow path from the interior of the tank assembly and through the adsorption media, the adsorption media adsorbing the vapor; a media housing connectable to the closure housing and supporting the adsorption media; and a vapor/liquid separator connected to the media housing, the separator being operable to prevent liquid contained in the tank assembly from entering the media housing and contacting the adsorption media.