Patent ID: 7225826
Filing Date: 2007-06-05
Classification: B63B,F16K,Y10T

Abstract:
1. A fuel tank vent assembly for marine fuel tanks comprising: an upper portion having a discharge outlet for the discharge of pressure and a lower portion adapted to enter into a marine fuel tank to a predetermined location within the fuel tank, said lower portion having an inlet for the receipt of liquid fuel, said upper and lower portions being operatively connected to form a flow path from said inlet through said outlet for the controlled discharge of pressure; said lower portion having first and second spaced apart openings and a float mounted between said first and second openings, said float having a first position when said first and second openings are in fluid communication allowing pressure to enter said lower tube and enter said upper portion to exit said discharge outlet and a second position wherein said float is between said first and second openings resulting in an increased in back pressure in the tank sufficient to shut off a flow nozzle, and a third position wherein said float seals said lower portion preventing liquid fuel from entering said upper portion, said lower portion has an elongated tube and said lower portion includes spaced apart indentations with one of said indentations being below said first opening and the other indentation being below said second opening, said float being below said first opening such that first opening remains open to allow pressure within the tank to be discharged through said upper portion and out said discharge outlet.