Container closure with removable section

Claim 1

A CLOSURE ARRANGEMENT, COMPRISING THE COMBINATION OF: (A) A CONTAINER NECK WITH A CENTRAL DISCHARGE OPENING AND AN OUTER SHOULDER PRESENTING AN ANNULAR ABUTMENT SURFACE FACING AWAY FROM THE FREE END OF THE NECK; (B) A RESILIENT STOPPER HAVING A CYLINDRICAL BODY PORTION DISPOSED WITHIN THE DISCHARGE OPENING OF THE NECK AND AN ENLARGED, ANNULAR, END PORTION SEATED ON THE FREE END OF THE NECK; AND (C) A ONE-PIECE CAP HAVING A GENERALLY FLAT END WALL, AND AN OUTWARDLY FLARED SIDE WALL PROJECTING THEREFROM AND DEFINING THEREWITH A CAVITY FOR RECEIVING END PORTIONS OF THE STOPPER AND CONTAINER NECK; (D) SAID CAP SIDE WALL HAVING AN INNER SHOULDER PRESENTING AN ANNULAR ABUTMENT SURFACE FACING THE CAP END WALL AND DISPOSED FOR ENGAGEMENT WITH THE NECK ABUTMENT SURFACE TO RETAIN THE CAP ON THE NECK; (E) SAID CAP INCLUDING A UNITARY, REMOVABLE SECTION FORMED IN THE END AND SIDE WALLS THEREOF AND ADAPTED TO BE READILY SEPARATED FROM THE REMAINDER OF THE CAP TO PROVIDE ACCESS TO THE CONTAINER; (F) SAID REMOVABLE SECTION INCLUDING: (I) AN END PORTION FORMED IN THE CAP END WALL BY A GENERALLY HORSESHOE SHAPED V-GROOVE HAVING A PAIR OF ENDS EXTENDING TO THE EDGE OF THE CAP A PAIR OF ENDS EXTENDING TO THE EDGE OF THE CAP END WALL; (II) A SIDE PORTION FORMED IN THE CAP SIDE WALL BY A PAIR OF GENERALLY STRAIGHT, PARALLEL V-GROOVES EXTENDING LONGITUDINALLY OF THE CAP FROM THE RESPECTIVE ENDS OF SAID FIRST MENTIONED GROOVE, AND A SLOT IN THE CAP SIDE WALL EXTENDING TRANSVERSELY OF THE CAP SIDE WALL BETWEEN SAID LAST MENTIONED GROOVES; AND (III) A HANDLE PORTION PROJECTING OUTWARDLY FROM SAID SIDE SECTION ADJACENT SAID SLOT.