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Method for preventing fuel spillage

  • US 5,727,603 A
  • Filed: 05/08/1996
  • Issued: 03/17/1998
  • Est. Priority Date: 07/08/1992
  • Status: Expired due to Fees
First Claim
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1. A method for preventing fuel spillage during and after refueling on a marine vessel having a fuel inlet port for receiving a fuel nozzle for supplying fuel, a fuel tank including a fuel chamber coupled in fluid communication with the fuel inlet port, a fuel fill line coupled in fluid communication to the fuel inlet port and to the fuel tank, and a vent port coupled in fluid communication to the fuel tank, comprising the steps of:

  • supplying fuel through the fuel inlet port, and in turn through the fuel fill line and into the fuel chamber of the fuel tank;

    preventing further fuel flow into the fuel chamber upon filling the fuel chamber with fuel and in turn causing the fuel to backup into the fuel fill line;

    draining the fuel from the fuel fill line downwardly into an overfill chamber coupled in fluid communication with the fuel chamber;

    preventing the passage of fuel from the overfill chamber and fuel chamber through the vent port;

    and draining the fuel from the overfill chamber into the fuel chamber in response to removal of fuel from the fuel chamber.

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