Dispenser cap with deformable cone assembly

Claim 1

A DISPENSER CAP WHICH INCLUDES: AN INNER CAP HAVING AN INTERNALLY THREADED BORE AT ITS LOWER END FOR THE RECEPTION OF A THREADED CONTAINER OUTLET, AND HAVING AN EXTERNAL CONICAL WALL SURFACE DIMINISHING IN HORIZONTAL CROSS SECTION TO AN UPPER END, AND HAVING THE UPPER END OF SAID CONICAL SURFACE PROVIDED WITH A CIRCUMFERENTIAL STEP AROUND AT LEAST PART OF ITS CIRCUMFERENCE; AN OUTER CAP COMPRISED OF A TOP AND DOWNWARDLY DIVERGING CONICAL SLEEVE DEPENDING FROM SAID TOP AND MATING WITH THE UPWARDLY CONVERGING CONICAL WALL SURFACE OF SAID INNER CAP, SAID OUTER CAP HAVING AN INTERNAL ANNULAR SHOULDER ADAPTED TO MATE WITH THE EXTERNAL ANNULAR GROOVE OF SAID INNER CAP, AND HAVING AN INTERNAL ANNULAR SHOULDER EXTENDING PARTIALLY AROUND THE INTERIOR CIRCUMFERENCE OF THE UPPER INTERIOR OF SAID OUTER CAP TO BE SLIDABLY RECEIVED IN SAID UPPER EXTERIOR STEP OF SAID INNER CAP, AND PERMIT PARTIAL RELATIVE ROTATION OF SAID OUTER CAP ON SAID INNER CAP; AND WALLS DEFINING MATING PASSAGES IN SAID INNER AND OUTER CAPS ON ONE SIDE OF THE AXIS OF ROTATION OF SAID OUTER CAP, TO PROVIDE SELECTIVE OPENING AND CLOSURE BETWEEN SAID INNER CAP BORE AND THE EXTERIOR OF SAID OUTER CAP.