Patent ID: 7506782
Filing Date: 2009-03-24
Classification: B65D

Abstract:
1. A single use unit dosage dispensing closure comprising: a shell adapted to be attached to a container, the shell having an outer skirt with a closure attaching mechanism on the outer skirt for attaching the shell to the container, the shell having an inner guide with an open top, wherein the inner guide is an annular tube having at least one annular seal; an axial movable cap attached to the shell and moveable along the inner guide through the open top, the cap having a chamber therein adapted to hold a unit dosage of material to be dispensed into the container, wherein each annular seal is engaging and sealing against the cap throughout a movement of the cap; a cover removably attached to the shell covering the open top thereby preventing actuation of the cap by an operator until the cover has been removed; and a sealing layer coupled to the cap, wherein the chamber is sealed with the sealing layer extending across a lower open end of the cap, wherein axial movement of the cap after the cover has been removed along the inner guide will cause the sealing layer to be removed or ruptured to dispense the contents of the chamber into the container.