VENT WHISTLE

device installed in the vent line of an in-board fuel tank of a boat, fuel being both gas and diesel; Device is designed to make an audible sound while fueling a boat and catch up to 16 ounces of fuel overspill while fueling; Device operates in this manner-- Once properly installed in the vent line of a boat, person fueling the boat hears an audible sound; As soon as the audible sound ceases, the person fueling immediately stops the fuel nozzle; Any residual fuel spilt is caught in the Vent Whistle's fuel chamber and is automatically and safely returned to the fuel tank; There is no handling of spilt fuel in a separate catch container