Tapping system for liquid container or the like

Claim 1

A TAPPING SYSTEM FOR LIQUID CONTAINERS, COMPRISING IN COMBINATION, A LIQUID CONTAINER HAVING AN OPENING THROUGH WHICH SAID CONTAINER MAY BE FILLED, A WELL CHAMBER IN THE SURFACE OF SAID CONTAINER, SAID CHAMBER BEING GENERALLY CUP-SHAPED HAVING AN OUTER PERIPHERAL PORTION JOINED TO THE ADJOINING PORTION OF THE SURFACE OF SAID CONTAINER, A PAIR OF QUICK-CONNECTED AXIAL MOVEMENT COUPLINGS EACH HAVING PARTS RESPECTIVELY COMPRISING A MALE FITTING AND A FEMALE FITTING, EACH OF SAID FITTINGS OF A COUPLING HAVING A SELF-CLOSING VALVE THEREIN AUTOMATICALLY OPERATIVE UPON SEPARATION OF SAID PARTS, ONE OF SAID FITTINGS IN EACH COUPLING BEING MOUNTED IN SAID CHAMBER AND EXTENDING RESPECTIVELY THROUGH THE BOTTOM THEREOF INTO COMMUNICATION WITH THE INTERIOR OF SAID CONTAINER, THE OUTER ENDS OF SAID RESPECTIVE LAST-NAMED FITTINGS BEING WHOLLY WITHIN SAID CHAMBER, A DISCHARGE PIPE WITHIN SAID CONTAINER CONNECTED TO ONE OF SAID LAST-NAMED FITTINGS AND EXTENDING SUBSTANTIALLY TO THE OPPOSITE INSIDE SURFACE OF SAID CONTAINER, SAID DISCHARGE PIPE HAVING SCREEN MEANS THEREIN AND A BEND IN A PLANE NORMAL TO THE AXIS OF SAID OPENING, EACH OF THE OTHER OF SAID FITTINGS IN EACH COUPLING BEING ADAPTED TO BE CONNECTED TO FLEXIBLE HOSE CONDUITS RESPECTIVELY CONNECTED TO A DISPENSER FOR SAID LIQUID AND TO A GAS PRESSURE SOURCE EXTERIORLY OF SAID LIQUID CONTAINER, A SIGHT TUBE CONNECTED AT LEAST TO THE COUPLING ADAPTED TO LEAD TO SAID DISPENSER AT ONE END AND SAID DISCHARGE PIPE AT THE OTHER, AND A CHECK VALVE POSITIONED IN OPERATIVE ASSOCIATION WITH SAID COUPLING LEADING TO SAID GAS PRESSURE SOURCE TO PREVENT FLUID FLOW TOWARD SAID SOURCE.