Spout-type container closure

Claim 1

IN A SPOUT-TYPE CONTAINER CLOSURE, GENERALLY TUBULAR POURING SPOUT OF RESILIENTLY FLEXIBLE MATERIAL FORMED WITH A BORE TERMINATING IN A MOUTH OPENING THROUGH THE OUTER END OF THE SPOUT, A CLOSURE DIAPHRAGM SPACED INWARDLY OF THE SPOUT FROM SAID MOUTH OPENING AND EXTENDING IN A RADIAL PLANE ACROSS SAID BORE, SAID DIAPHRAGM BEING INTEGRAL WITH AND CONSTITUTING A HOMOGENEOUS PORTION OF THE MATERIAL FORMING THE SPOUT, SAID DIAPHRAGM BEING PERIPHERALLY CONNECTED WITH THE INNER WALL OF SAID BORE ALONG A WEAKENED TEAR LINE SPACED INWARDLY OF THE SPOUT FROM ITS MOUTH, A RESILIENTLY FLEXIBLE PULL TAB HAVING A ROOT PORTION CONNECTED WITH SAID DIAPHRAGM CLOSELY ADJACENT SAID WALL AND SAID WEAKENED TEAR LINE, SAID TAB, EXCEPT FOR ITS ROOT PORTION, BEING DISCONNECTED FROM SAID WALL AND SAID DIAPHRAGM, AND HAVING A FREE END NORMALLY PROJECTING OUTWARDLY THROUGH AND BEYOND THE MOUTH OF THE SPOUT, AND BEING NORMALLY DISPOSED AT AN ANGLE TO SAID DIAPHRAGM AND BEING DISPOSED FOR RESILIENT FLEXING TOWARD SAID RADIAL PLANE OF SAID DIAPHRAGM INTO THE MOUTH OF THE SPOUT, SAID ANGLE BEING AN ACUTE ANGLE MATERIALLY LESS THAN 90 DEGREES AND SAID TAB EXTENDING OVER THE MEDIAL PORTION OF SAID DIAPHRAGM WITH THE FREE END OF SAID TAB EXTENDING BEYOND THE AXIAL CENTER OF THE SPOUT TO FACILITATE AND ASSURE THE MOVEMENT OF SAID TAB TOWARDS THE INTERIOR OF SAID SPOUT WHEN SAID TAB IS DEFLECTED TOWARDS THE PLANE OF SAID DIAPHRAGM, THE RESILIENCY OF THE TAB, UPON BEING RELEASED, CAUSING IT TO RESUME ITS NORMAL POSITION WITH ITS FREE END OUTWARD OF AND BEYOND THE MOUTH OF THE SPOUT.