Patent ID: 7174926
Filing Date: 2007-02-13
Classification: B67D

Abstract:
1. An ORVR compatibility assembly for use in a fueling system in which fuel from a storage tank is pumped through a hose to a nozzle for discharge into a fuel tank of a vehicle, the fueling system including a vapor recovery system to recover fuel vapors displaced from the fuel tank during fueling, the assembly comprising: a primary vapor passage adapted to be in fluid communication with the vapor recovery system; a valve assembly moveable between first and second positions, the first position permitting the uninterrupted flow of vapors through the primary vapor passage and the second position inhibiting the flow of vapors through the primary vapor passage, the valve assembly being biased toward the first position; an air bleed passage in fluid communication with the primary vapor passage; a stop on the valve assembly and moveable between open and closed positions, the stop in the closed position closing the air bleed passage when the valve assembly is in the first position; and wherein when the air pressure in the primary vapor passage is reduced to a predetermined level, the valve assembly moves from the first position to the second position and thereby inhibits flow through the primary vapor passage and vents the primary vapor passage through the air bleed passage when the stop moves to the open position.