Container and closure cap combination

Claim 1

IN COMBINATION, A CONTAINER HAVING A MOUTH-DEFINING NECK TERMINATING IN AN ANNULAR RIM, SAID NECK BEING PROVIDED WITH AN EXTERNAL CONTINUOUS SCREW-THREAD, A CLOSURE CAP ADAPTED TO BE TELESCOPED OVER THE NECK AND HAVING A SCREW-THREAD ADAPTED TO ENGAGE THE THREAD ON THE NECK, THE SCREW-THREADS ON SAID NECK AND CLOSURE CAP HAVING RELATIVELY BLUNT INTERENGAGEABLE ENDS FUNCTIONING AS STOPS TO TERMINATE ROTATION OF THE CAP AT A FIXED POINT DURING ITS APPLICATION TO THE BOTTLE, SAID CAP HAVING A TOP PANEL PORTION AND A DEPENDING ATTACHING SKIRT, AN ANNULAR CHANNEL OF GREATER WIDTH THAN AND ADAPTED TO OVERLIE SAID RIM IS PROVIDED INTERNALLY OF SAID CAP, SAID CHANNEL INCLUDING AN INNER SIDE WALL SPACED RADIALLY INWARDLY FROM THE SKIRT WITH THAT SURFACE OF SAID SIDE WALL FACING THE CHANNEL TAPERED TOWARD THE OPEN END AND AXIS OF SAID CAP, AND A SEALING ELEMENT INCLUDING A FLEXIBLE RADIAL FLANGE WHICH PRIOR TO CAP APPLICATION EXTENDS IN A PLANE NORMAL TO THE CAP AXIS AND SUBSTANTIALLY SPANS THE OPEN SIDE OF SAID CHANNEL, SAID FLANGE BEING DEFLECTED IN PART INTO THE CHANNEL INCIDENT TO CAP APPLICATION AND HAVING SEALING CONTACT WITH BOTH SAID RIM AND A PORTION OF THE INTERIOR SURFACE OF SAID NECK.