Closure dispenser for containers

Claim 1

IN COMBINATION WITH A CONTAINER HAVING INSULATED DOUBLE WALLS AND AN UPPER CYLINDRICAL MOUTH PORTION HAVING INTERNAL THREADING, WITH AN INWARDLY-EXTENDING ANNULAR SHOULDER BENEATH SAID THREADING; A CLOSURE DISPENSER FOR SAID CONTAINER COMPRISING AN INTEGRAL BODY PORTION INCLUDING A CIRCULAR BASE SECTION HAVING A PERIPHERAL BORDER REGISTERING WITH THE INNER BORDER OF SAID SHOULDER AND BEING OF LESS DIAMETER THAN THE INSIDE OF SAID MOUTH PORTION, A PERIPHERAL WALL PROJECTING UPWARDLY FROM SAID BASE SECTION AND TERMINATING IN AN OUTWARDLY DIRECTED FLANGE, AND A SKIRT WALL COAXIAL WITH AND DEPENDING FROM AND SPACED OUTWARDLY OF SAID FLANGE TO A LEVEL ABOVE THAT OF SAID PERIPHERAL BORDER AND DELINEATING WITH SAID PERIPHERAL WALL AN ANNULAR CONDUIT HAVING AN ANNULAR BOTTOM OPENING, SAID ANNULAR CONDUIT HAVING AT ITS UPPER END DIAMETRICALLY OPPOSED OPENINGS DEFINING A POURING SPOUT AND A VENT OPENING RESPECTIVELY AND SAID SKIRT HAVING EXTERNAL THREADING ENGAGING SAID MOUTH INTERNAL THREADING WHEREBY SAID CLOSURE DISPENSER MAY BE TURNED BETWEEN A RAISED POSITION IN WHICH SAID CONDUIT IS IN COMMUNICATION WITH THE INTERIOR OF SAID CONTAINER, AND A LOWERED CONDITION IN WHICH SAID BASE SECTION PERIPHERAL BORDER ENGAGES SAID ANNULAR SHOULDER PROVIDE AN INSULATE SEAL FOR THE INTERIOR OF THE CONTAINER.