Fuel supply system

Claim 1

A FUEL TANK TRANSFER SYSTEM FOR AN ENGINE COMPRISING IN COMBINATION A PLURALITY OF CONNECTED FUEL STORAGE TANKS, EACH SUCH STORAGE TANK HAVING A FUEL PORT AND FUEL OUTLET THEREIN, AND EACH TANK INCLUDING A FLOAT OPERATED VALVE, EACH SUCH FLOAT OPERATED VALVE COMPRISING A FIRST VALVE SEAT COMMUNICATING BETWEEN THE OUTLET OF ITS TANK AND THE PORT OF ITS TANK, AND A MOVABLE VALVE ELEMENT INCLUDING A FIRST VALVE FACE ADAPTED TO COOPERATE WITH SAID FIRST VALVE SEAT, A SECOND VALVE SEAT COMMUNICATING BETWEEN THE OUTLET OF SAID ITS TANK AND THE INTERIOR OF SAID ITS TANK, A MOVABLE VALVE ELEMENT INCLUDING A SECOND VALVE FACE ADAPTED TO COOPERATE WITH SAID SECOND VALVE SEAT, FLOAT MEANS OPERATIVELY CONNECTED TO THE FIRST SAID MOVABLE VALVE ELEMENT TO MOVE SAID FIRST VALVE FACE INTO CONTACT WITH SAID FIRST VALVE SEAT WHEN SAID FLOAT MEANS IS URGED UPWARDLY BY THE FUEL IN SAID TANK AND OUT OF CONTACT WITH SAID FIRST VALVE SEAT WHEN SAID FLOAT MEANS IS MOVED DOWNWARDLY THEREBY ALLOWING FUEL TO FLOW FROM SAID PORT TO SAID OUTLET WHEN THE LEVEL IN SAID TANK FALLS BELOW THE LEVEL OF SAID FLOAT MEANS, SAID FLOAT MEANS OPERATIVELY CONNECTED TO THE SECOND SAID MOVABLE VALVE ELEMENT ADAPTED TO MOVE SAID SECOND VALVE FACE ONTO SAID SECOND VALVE SEAT WHEN SAID FIRST VALVE FACE IS OUT OF CONTACT WITH SAID FIRST VALVE SEAT AND OUT OF CONTACT WITH SAID SECOND VALVE SEAT WHEN SAID FIRST VALVE FACE IS IN CONTACT WITH SAID FIRST VALVE SEAT AND DUCT MEANS CONNECTING THE OUTLET OF ONE OF SAID TANKS TO SAID ENGINE AND THE PORT THEREOF TO THE OUTLET OF ANOTHER OF SAID TANKS.