Liquid filling pipe

Claim 1

A LIQUID FILLING PIPE PERMANENTLY ATTACHED TO AND IN COMMUNICATION WITH A RESERVOIR ADAPTED TO RECEIVE LIQUID THROUGH SAID PIPE, SAID PIPE HAVING AN OPEN FREE END DEFINING A FREE EDGE DISPOSED IN A PLANE SUBSTANTIALLY PERPENDICULAR TO THE LONG AXIS OF SAID PIPE, A TUBULAR NIPPLE OF AN EXTERNAL DIAMETER SMALLER THAN THE INTERNAL DIAMETER OF SAID PIPE, DISPOSED WITHIN SAID PIPE AND PROTRUDING THEREFROM WITH THE LONG AXIS OF SAID NIPPLE PARALLEL TO AND SPACED FROM THE AXIS OF SAID PIPE, SAID NIPPLE BEING RIGIDLY SECURED TO SAID PIPE ALONG A RESTRICTED LONGITUDINAL ZONE OF THE CYLINDRICAL WALLS OF SAID NIPPLE AND OF SAID PIPE, THE PIPE PROTRUDING PORTION OF SAID NIPPLE FORMING A CUTTER OPERABLE TO CUT AN OPENING IN A WALL OF A CONTAINER PUSHED THEREAGAINST UNTIL SAID CONTAINER ENGAGES SAID PIPE FREE EDGE, SAID PIPE FREE EDGE HAVING TWO ANGULARLY SPACED NOTCHES AND A TONGUE INTEGRAL WITH THE CYLINDRICL WALL OF SAID PIPE AND PROTRUDING FROM SAID PIPE FREE EDGE INTERMEDIATE SAID NOTCHES AND ADJACENT THERETO, SAID NOTCHES AND TONGUE BEING LOCATED IN THE ZONE OF SAID PIPE WALL FARTHEST FROM SAID NIPPLE CYLINDRICAL WALL.