Apparatus and method to control excess pressure in fuel storage containment system at fuel dispensing facilities
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United States of America Patent
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Jan 11, 2005
Grant Date -
Dec 18, 2003
app pub date -
Mar 5, 2003
filing date -
Mar 5, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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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