Patent ID: 8511341
Filing Date: 2013-08-20
Classification: B60K,Y10T

Abstract:
1. A marine fuel backflow preventer and overfill alarm system for preventing the escape of fuel from a marine vessel having a fuel tank, a fuel filling port in communication with the fuel tank, and a vent line running from the fuel tank to an overboard vent fitting, said system comprising: a housing defining an interior volume, said housing including a top and a bottom; said housing top including a fuel fill inlet coupled in fluid communication with the fuel filling port; said housing bottom including a fuel fill outlet coupled in fluid communication with the fuel tank; a pipe having an upper end in fluid communication with said fuel fill inlet and a lower end projecting into said housing interior volume; a generally cylindrical internal baffle disposed within said housing, said baffle having a lower end connected to the bottom of said housing in concentric relation with said fuel fill outlet, and an upper end disposed in generally concentric and radially spaced surrounding relation with the lower end of said fuel fill inlet pipe, said baffle lower end including at least one notch; and said housing top including a first vent port coupled in fluid communication with the fuel tank by a first vent line, and a second vent port coupled in fluid communication with the overboard vent fitting by a second vent line.