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A system and method for removing, compressing, and storing excess air and vapors from a fuel dispensing facility fuel storage containment system during periods of over-pressurization without venting or processing the excess air and vapors. The stored air and vapors are subsequently returned back to

A system and method for removing, compressing, and storing excess air and vapors from a fuel dispensing facility fuel storage containment system during periods of over-pressurization without venting or processing the excess air and vapors. The stored air and vapors are subsequently returned back to the containment system during periods of under-pressurization that typically occur diurnally during periods of high fueling activity. The system may be used to compliment an ORVR compatible dispensing system that typically encounters over-pressurization problems when low or no refueling activity is occurring.

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1. A vapor storage system for compressing and air or vapor mixture from a fuel storage containment system to reduce the pressure in the fuel storage containment system when the fuel storage containment system is over-pressurized, comprising:a pressure sensor that measures the pressure level in the f

1. A vapor storage system for compressing and air or vapor mixture from a fuel storage containment system to reduce the pressure in the fuel storage containment system when the fuel storage containment system is over-pressurized, comprising:a pressure sensor that measures the pressure level in the fuel storage containment system; a controller, wherein said controller is electrically coupled to said pressure sensor to receive the pressure level in the fuel storage containment system; and a compressor pump electrically connected to said controller and under control of said controller wherein said compressor pump is fluidly coupled to the fuel storage containment system; a storage vessel fluidly coupled to said compressor pump; said controller activates said compressor pump to draw the air or vapor mixture from the fuel storage containment system when the pressure level from said pressure sensor exceeds a first threshold pressure level and said compressor pump stores the compressed air or vapor mixture in said storage vessel. 2. The system of claim 1, wherein said first threshold pressure level is approximately +0.6 inches of water column.3. The system of claim 1, wherein said compressor pump is fluidly coupled to a component of the fuel storage containment system comprised from the group consisting of the fuel storage tank, the vent pipe, and the vapor return pipe.4. The system of claim 1, further comprising a check valve between said compressor pump and said storage vessel to prevent backflow of the air or vapor mixture from said storage vessel to said compressor pump.5. The system of claim 1, wherein said controller deactivates said compressor pump when the pressure level in the fuel storage containment system drops below a second threshold pressure level.6. The system of claim 1, wherein said second threshold pressure level is approximately +0.2 inches water column.7. The system of claim 5, further comprising a connecting pipe fluidly coupling said storage vessel to the fuel storage containment system and a drain valve that is electrically coupled to said controller and is located in said connecting pipe between said storage vessel and the fuel storage containment system, wherein said controller causes said drain valve to open when the pressure level in the fuel storage containment system falls below a third threshold pressure level to release the air or vapor mixture in said storage vessel back into the fuel storage containment system to raise the pressure level in the fuel storage containment system.8. The system of claim 7, wherein said third threshold pressure level is approximately ?0.6 inches water column.9. The system of claim 7, wherein said controller deactivates said drain valve when the pressure level in the fuel storage containment system exceeds a fourth threshold pressure level.10. The system of claim 9, wherein said fourth threshold pressure level is approximately ?0.2 inches water column.11. The system of claim 7, wherein said controller deactivates said drain valve after a predetermined amount of time.12. The system of claim 7, wherein said controller deactivates said drain valve when said controller determines that said storage vessel is empty.13. The system of claim 12, wherein said controller determines said storage vessel is empty by receiving a pressure signal that reaches a low pressure threshold level from a second pressure sensor located in said storage vessel to measure the pressure level inside said storage vessel.14. The system of claim 7, further comprising a pressure regulator located in said connecting pipe between said drain valve and the fuel storage containment system that regulates and limits the pressure of the air or vapor mixture to prevent excessive pressures in said connecting pipe and the fuel storage containment system when the air or vapor mixture is drained from said storage vessel to the fuel storage containment system.15. The system of claim of claim 1, further comprising a safety shutoff switch coupled to the outlet side of said compressor pump and electrically connected to said compressor pump, wherein said safety shutoff switch deactivates said compressor pump if the pressure in said storage vessel exceeds a predetermined upper pressure level to prevent excessive pressure from building up inside said storage vessel.16. A method of managing the pressure level of the air or vapor mixture in a fuel storage containment system, comprising the steps of:measuring the pressure level in the fuel storage containment system; compressing the air or vapor mixture in the fuel storage containment system when the pressure level of the fuel storage containment system exceeds a first threshold pressure level; and storing the compressed air or vapor mixture in a storage vessel coupled to the fuel storage containment system. 17. The method of claim 16, wherein said compressor pump is fluidly coupled to a component of the fuel storage containment system comprised from the group consisting of the fuel storage tank, the vent pipe, and the vapor return pipe.18. The method of claim 16, further comprising preventing backflow of the air or vapor mixture from said storage vessel to the fuel storage containment system.19. The method of claim 16, further comprising the step of not further performing said compressing step when the pressure level in the fuel storage containment system drops below a second threshold pressure level.20. The method of claim 19, further comprising activating a drain valve between said storage vessel and the fuel storage containment system to release the air or vapor mixture in said storage vessel back to the fuel storage containment system when the pressure level in the fuel storage containment system falls below a third threshold pressure level to raise the pressure level in the fuel storage containment system.21. The method of claim 20, further comprising deactivating said drain valve when the pressure level in the fuel storage containment system exceeds a fourth threshold pressure level.22. The system of claim 20, further comprising deactivating said drain valve after a predetermined amount of time has passed after said step of activating said drain valve has been performed.23. The system of claim 20, further comprising deactivating said drain valve after determining said storage vessel is empty.24. The method of claim 23, wherein said step of determining said storage vessel is empty comprises measuring the pressure level inside said storage vessel.25. The method of claim 20, further comprising regulating and limiting the pressure of the air or vapor mixture that is drained from said storage vessel to the fuel storage containment system.26. The method of claim 16, further comprising deactivating said step of compressing if the pressure in said storage vessel exceeds a predetermined upper pressure level to prevent excessive pressure from building up inside said storage vessel.