Pouring adapter-closure assembly

A pouring adaptor-closure assembly comprising;

• an adaptor adapted to be secured to the discharge end of a container or the like comprising,
• a generally cylindrical skirt portion having a lower terminal edge which detachably locks under a protruding rib on the container finish after the assembly is secured to the container,
• a radially inwardly directed top portion which snugly seats on the axial end face of the container,
• said top portion having a frusto-conical outer face which is outwardly divergent from its inner peripheral edge and a reverseably tapered flexible flange which is downwardly divergent from the juncture of the frusto-conical outer face and flange to provide a non-drip edge as the contents are poured from the container and,
• a closure cap having a top and a generally cylindrical skirt portion with internal threads adapted to cooperate with threads on the container finish,
• means defining a rib spaced downwardly form said top defining a sidewall groove on the interior of the cap within which the flexible flange of the adaptor releasably seats and compresses radially inwardly to provide a primary seal for the container contents and to secure said adaptor to said cap prior to use,
• said closure cap including a circumferentially extending sealing rib projecting from the inside of the top of the cap which engages against the frusto-conical face of the adaptor to provide a secondary seal for the container contents.