Combination closure cap and stopper

Claim 1

A CLOSURE CAP COMPRISING: CUP MEANS ADAPTED TO RECEIVE THE DISCHARGE END OF A NECKED CONTAINER INCLUDING A DISC AND AN ANNULAR WALL FIXED TO THE DISC; FLEXIBLE SKIRT MEANS DEPENDING FROM SAID CUP MEANS AND SPACED RADIALLY INWARDLY OF AND DISPOSED CONCENTRICALLY WITH SAID ANNULAR WALL; SAID SKIRT MEANS INCLUDING A GENERALLY CYLINDRICAL BEARING PORTION INITIALLY OF GREATER OUTSIDE DIAMETER THAN THE INSIDE DIAMETER OF THE NECK OF THE CONTAINER AND CONNECTED TO THE DISC BY A COLLAR PORTION MERGING INTO SAID DISC AT AN ACUTE ANGLE FACING OUTWARDLY AND HAVING A MAJOR DIAMETER WHICH COINCIDES WITH A DIAMETER OF SAID BEARING PORTION TO DEFINE A TAPERING ANNULAR RELIEF BETWEEN SAID BEARING PORTION AND SAID DISC; SAID GENERALLY CYLINDRICAL BEARING PORTION TERMINATING IN A RELIEVED FREE END PORTION FACILITATING ENTRY OF THE SKIRT MEANS INTO THE NECK OF THE CONTAINER WITH THE BEARING PORTION ENGAGING THE NECK OF THE CONTAINER THROUGHOUT AN ANNULAR AREA OF CONTACT OF SUBSTANTIAL VERTICAL EXTENT; AND ANNULAR RIB MEANS RAISED FROM SAID DISC AND DISPOSED CONCENTRICALLY BETWEEN SAID ANNULAR WALL AND SAID SKIRT MEANS FOR SEALINGLY ABUTTING THE END SURFACE OF SAID CONTAINER, SAID DISC COOPERATING WITH SAID COLLAR PORTION TO DEFINE FORCE-TRANSMITTING MEANS ACTING BETWEEN SAID RIB MEANS AND THROUGHOUT THE ANNULAR AREA OF CONTACT BETWEEN THE NECK OF THE CONTAINER AND SAID BEARING PORTION WHEREBY FORCES ACTING BETWEEN SAID END SURFACE AND SAID RIB MEANS TEND RADIALLY TO EXPAND SAID BEARING PORTION AGAINST SAID NECK THROUGHOUT THE SAID ANNULAR AREA OF CONTACT AND FORCES ACTING BETWEEN SAID BEARING PORTION AND SAID NECK TEND TO URGE SAID RIB MEANS AGAINST SAID END SURFACE.