Patent ID: 7422027
Filing Date: 2008-09-09
Classification: B63J,F16K,Y10T

Abstract:
1. A fuel tank having an exterior and interior comprising: an inlet for receipt of fuel; a vent assembly for venting pressure within said tank, said vent assembly including an upper portion having a discharge outlet for the discharge of pressure, said upper portion extending from said exterior and a lower portion extending within said interior of said fuel tank to a predetermined location within the fuel tank, said lower portion having an inlet for the receipt of liquid fuel, said inlet being positioned within said interior of said fuel tank, 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 a first and second spaced apart openings and a float mounted between said first and second openings, said first and second opening and said float being positioned within said interior of said fuel tank, 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 increase 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.