Patent ID: 6082392
Filing Date: 2000-07-04
Classification: B67D,G01M,Y10T

Abstract:
A system for transmitting liquid fuel from a transport truck tank to an airport refueler, comprising:a hose assembly for transmitting fuel from the transport truck tank to the airport refueler, including:an inner hose and an outer hose, the inner hose being adapted for transmitting liquid fuel,sealing means coupled to the inner hose and outer hose for forming a sealed passage therebetween, andmeans for connecting one end of the hose assembly to a fuel port of the transport truck tank and another end of the hose assembly to a refueler tank within the airport refueler,said assembly including at least two sensor ports;leakage sensing means coupled to the sensor ports for detecting leakage of fuel from the inner hose to the passage and for generating sensor signals, including:pressure sending means for detecting a change in pressure within the passage, andliquid sensing means for detecting the presence of liquid within the passage;control means responsive to the sensor signals for terminating transmission of the fuel when fuel leakage is detected by either one of the group consisting of the pressure sensing means and the liquid sensing means;fuel level detection means within the refueler tank for detecting when a fuel level within the refueler tank is equal to or greater than a threshold level and generating alarm signals therefrom;wherein the control means are responsive to the alarm signals for terminating transmission of the fuel when the fuel level in the refueler tank reaches the threshold level,the fuel level detection means include refueler liquid sensing means for detecting fuel at the threshold level within the refueler tank,the refueler tank has an atmospheric vent,the fuel level detection means further include vent liquid sensing means for detecting fuel at a level of the atmospheric vent, and for generating and transmitting vent alarm signals based on said detection, andsaid control means are responsive to the vent alarm signals for terminating transmission of the fuel when the fuel level in the refueler tank reaches the level of the atmospheric vent.