Patent ID: 7941289

Claim:
A self-calibrating fuel dispenser comprising: a fuel controller comprising: one or more pumps configured to deliver fuel from one or more fuel reservoirs to a fuel delivery line; and one or more meters configured to measure an amount of fuel delivered to the fuel delivery line; a fuel calibration reservoir separate from the one or more fuel reservoirs and fluidly coupled to the fuel delivery line and at least one of the one or more fuel reservoirs through at least one of the one or more meters, the fuel calibration reservoir sized to contain only a fraction of a fuel volume containable in one of the one or more fuel reservoirs, at least a portion of the fuel calibration reservoir in or adjacent a housing of the self-calibrating fuel dispenser; and a dispenser manager configured to control fuel delivery by the fuel controller, wherein the dispenser manager is further configured to determine whether the fuel delivery measurement should be calibrated based at least in part on a deviation between a measured amount of fuel contained within the calibration reservoir and the amount of fuel delivered to the fuel delivery line measured by the one or more meters.