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Fuel dispensing and vehicle maintenance system

  • US 4,490,798 A
  • Filed: 12/16/1981
  • Issued: 12/25/1984
  • Est. Priority Date: 12/16/1981
  • Status: Expired due to Fees
First Claim
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1. A method of dispensing fuel and indication maintenance for a motor vehicle, comprising in combination:

  • providing with the vehicle a portable memory means for storing, retrieving and updating selected data of the vehicle;

    providing at a fuel dispensing site a remote processing unit having receptacle means for receiving the memory means, and for reading and updating the data in the memory means, and providing with the remote processing unit interface means for controlling a pump to dispense fuel and for monitoring the fuel dispensed;

    inserting the memory means into the receptacle means of the remote processing unit and reading with the remote processing unit from the memory means an identification number and a next service mileage for the vehicle;

    verifying with the remote processing unit that the identification number is a valid number;

    entering into the remote processing unit currentmileage of the vehicle;

    comparing with the remote processing unit the current mileage with the next service mileage and notifying the vehicle operator of service needs if the current mileage exceeds the next service mileage;

    if the identification number is valid, turning on the pump and monitoring with the remote processing unit the amount of fuel dispensed; and

    performing indicated service on the vehicle and updating the next service mileage in the memory means.

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