Patent ID: 6311739
Filing Date: 2001-11-06
Classification: B67D

Abstract:
An electronically calibrated fuel dispenser that maintains calibration factor integrity, comprising:a processor located on a processor board, the processor board including a calibration factor connector;a fuel pump coupled to a fuel source, the fuel pump including a fuel meter, the fuel pump providing fuel to a fuel recipient;a pulser circuit coupled to the fuel meter, the pulser circuit providing an indication to the processor of the fuel delivered to the fuel recipient; anda memory located on a memory board, the memory board including a memory connector for coupling the memory board to the calibration factor connector of the processor board and thereby coupling the memory to the processor, the memory storing calibration factors independent of the processor board, the memory board further including:a calibration mode entry device for enabling and disabling the writing of the calibration factors into the memory;a blocking device, the blocking device preventing the calibration mode entry device from being actuated when in a blocking position; anda sealing device, the sealing device providing an indication of whether the blocking device has been removed from the blocking position without authorization and thereby providing an indication of whether the calibration mode entry device has been enabled without authorization.