Container spout

Claim 1

IN COMBINATION WITH A CONTAINER HAVING A ROUND POUR OPENING THEREIN WITH AN INTERNAL ANNULAR FLANGE: A RETRACTABLE SPOUT COMPRISING AN ANNULAR BASE OF RUBBER OR RUBBER-LIKE MATERIAL, A HORIZONTAL EXTERNAL FLANGE AT THE UPPER EDGE OF SAID BASE, SAID EXTERNAL FLANGE BEING UPWARDLY DEFLECTABLE AND HAVING AN ANNULAR DOWNWARDLY FACING SEALING SURFACE FOR SEATING ON THE UPPER SIDE OF SAID FIRST MENTIONED FLANGE, A SEALING BEAD ON SAID SURFACE, AN ANNULAR GROOVE AT THE INNER EDGE OF SAID EXTERNAL FLANGE DISPOSED DIRECTLY ABOVE THE EXTERNAL SURFACE OF SAID BASE, AN ANNULAR SURFACE FACING OUTWARDLY ON SAID BASE DISPOSED BELOW AND INWARDLY FROM SAID SEALING SURFACE, A PLURALITY OF SPACED LUGS ON SAID ANNULAR SURFACE, SAID LUGS TAPERING DOWNWARDLY AND INWARDLY TOWARD THE BOTTOM AND HAVING AN UPPER SUBSTANTIALLY HORIZONTAL INWARDLY EXTENDING SURFACE WHEN ENGAGING SAID CONTAINER FLANGE FOR LOCKING THE SPOUT ON THE CONTAINER, THE DISTANCE BETWEEN HORIZONTAL PLANES AT THE TOP OF THE LUGS AND AT THE LOWER SIDE OF SAID SEALING SURFACE BEING LESS THAN THE DISTANCE BETWEEN THE PARTS OF THE CONTAINER ENGAGED THEREBY AND SAID SEALING SURFACE BEING SUFFICIENTLY FLEXIBLE TO PERMIT SAID LUGS TO SNAP BENEATH THE LOWER SIDE OF SAID FLANGE, A FLEXIBLE CONICAL SECTION JOINED AT ITS LARGE END TO SAID BASE SPACED INWARDLY FROM THE EDGE THEREOF AND BEING ADAPTED TO FOLD DOWNWARDLY INTO SAID BASE, AND A NECK WITH A PASSAGE THERETHROUGH JOINED TO THE SMALL END OF SAID CONICAL SECTION.