Fueling control means

Claim 1

FUEL DELIVERY CONTROL MEANS FOR CONTROLLING DELIVERY OF FUEL TO PLANES OR THE LIKE, SAID MEANS COMPRISING A VALVE HOUSING HAVING AN INLET FOR CONNECTION WITH A COUPLER DEFUEL SUPPLY, AN OUTLET FOR CONNECTION WITH COUPLER DELIVERING TOWARD THE PLANE, A POPPET VALVE SEATABLE IN SAID OUTLET TO PREVENT FUEL DELIVERY AND MOVABLE TO A FULLY OPEN POSITION INCIDENTAL TO A COUPLER CONNECTION FOR DELIVERY OF FUEL THROUGH SAID OUTLET, MEANS IN SAID HOUSING PROVIDING A PRESSURE CHAMBER, A VALVE PISTON MOVABLE IN SAID CHAMBER AND SEATABLE IN SAID INLET SO AS TO BE EXPOSED AT ONE SIDE TO INLET PRESSURE AND AT ITS OHTER SIDE TO PRESSURE WITHIN SAID CHAMBER, SAID PISTON HAVING A BLEED OPENING THEREIN TO COMMUNICATE INLET PRESSURE INTO SAID CHAMBER, A FIRST PILOT VALVE MEANS, A SECOND PILOT VALVE MEANS, CONDUIT MEANS CONNECTING SAID FIRST AND SECOND PILOT VALVE MEANS IN SERIES FOR AT TIMES OPENING COMMUNICATION BETWEEN THE OUTLET AND SAID PRESSURE CHAMBER AND FOR AT TIMES CLOSING OFF SAID LAST NAMED COMMUNICATION, MEANS FOR AUTOMATICALLY OPENING AND HOLDING OPEN THE FIRST PILOT VALVE MEANS COINCIDENT WITH THE OPENING OF THE POPPET VALVE, AND MEANS FOR OPENING THE SECOND PILOT VALVE TO BLEED PRESSURE FROM THE CHAMBER TO THE OUTLET SO THAT INLET PRESSURE WILL BE DOMINANT AND UNSEAT THE VALVE PISTON TOI DELIVER FUEL PAST THE VALVE PISTON AND THROUGH THE OUTLET PAST THE OPEN POPPET VALVE, AND MEANS FOR AUTOMATICALLY CLOSING SAID SECOND PILOT VALVE RESPONSIVE TO A PREDETERMINED PRESSURE DROP DOWNSTREAM OF SAID VALVE PISTON TO DISCONTINUE SAID PRESSURE BLEEDING AND CAUSE PRESSURE BUILD UP IN THE CHAMBER EFFECTIVE TO CLOSE THE VALVE PISTON ON ITS SEAT.