Gas feed to pressure pour apparatus

Claim 1

PRESSURE POUR APPARATUS FOR DISPENSING OF LIQUID COMPRISING, A SEALABLE RECEPTACLE FOR HOLDING LIQUID AND PROVIDING A CHAMBER IN ASSOCIATION WITH SUCH LIQUID, A DISCHARGE PASSAGEWAY EXTENDING UPWARDLY FROM SAID RECEPTACLE WITH ITS LOWER END BELOW NORMAL LIQUID LEVELS IN SAID RECEPTACLE AND HAVING AT ITS UPPER END, A DISCHARGE LIP, MEANS FOR INTRODUCING GAS AT A READY-TO-POUR GAS PRESSURE INTO SAID RECEPTACLE AT A POINT BELOW NORMAL LIQUID LEVEL, AND OF A VALUE SUFFICIENT TO ESTABLISH A LIQUID LEVEL IN SAID DISCHARGE PASSAGEWAY BELOW SAID LIP, SAID READY-TO-POUR PRESSURE BEING EQUAL TO THE SUM OF THE RESULTING GAS CUSHION PRESSURE PER SQUARE INCH ON THE SURFACE OF LIQUID IN SAID RECEPTACLE AND THE PRESSURE OF LIQUID PER SQUARE INCH AT SAID BELOW LEVEL POINT, MEANS FOR INCREASING SAID GAS CUSHION PRESSURE BY A MORE DIRECT ROUTE WHILE SIMULTANEOUSLY INCREASING THE GAS PRESSURE AT SAID BELOW LEVEL POINT UNTIL SAID LATTER GAS PRESSURE REACHES A POUR PRESSURE SUFFICIENT TO CAUSE DISCHARGE OF LIQUID FROM SAID DISCHARGE PASSAGEWAY. AND MEANS RESPONSIVE TO SUCH INCREASE IN PRESSURE, FROM SAID READY-TO-POUR PRESSURE TO SAID POUR PRESSURE AT SAID BELOW LEVEL POINT, FOR SUBSTANTIALLY HALTING FURTHER INCREASE IN GAS CUSHION PRESSURE VIA SAID MORE DIRECT ROUTE.