| 摘要 |
<p>A system for use with a fluid dispensing apparatus having a fluid flow metering mechanism and a nozzle including an automatic pressure differential-actuated full tank shutoff. The system comprises a holding tank, means for maintaining the pressure in the tank at a differential with respect to atmospheric pressure and for connecting the holding tank to the nozzle to actuate the shutoff, and a mechanical selector operatively linked to the metering sustem and to the first mentioned means for actuating those means when substantially a predetermined amount of fluid has been dispensed through the nozzle.</p> |
