Patent ID: 8622074

Claim:
A venting system for a fuel tank, comprising: a first vent valve through which fuel vapor may be vented from the fuel tank, being responsive to the level of liquid in the fuel tank to prevent fuel vapor in the fuel tank from venting through the first vent valve when the liquid fuel in the fuel tank causes the first vent valve to close, and being located within a first chamber of the fuel tank; a second vent valve through which fuel vapor may be vented from the fuel tank, being responsive to the level of liquid in the fuel tank to prevent fuel vapor in the fuel tank from venting through the second vent valve when the liquid fuel in the fuel tank causes the second vent valve to close, and being located within a second chamber of the fuel tank that is separate from the first chamber of the fuel tank during at least certain fuel level conditions within the fuel tank; and a support having a passage communicated with the first vent valve and the second vent valve that receives vapor that flows through the first vent valve and second vent valve, the support carrying both the first and second vent valves within the fuel tank and the support being movably carried within the fuel tank to vary the height of the first and second valves within the fuel tank.