Patent ID: 8746476
Filing Date: 2014-06-10
Classification: B65D

Abstract:
1. A closure unit for opening a seal covering a discharge port of a container comprising: a base configured to secure to the container; a tubular portion extending upwardly from the base; a flexible base section mounted to the tubular portion by a line of weakness and mounted adjacent to a seal covering a discharge port of a container, the flexible base section being movable between a first position with respect to the seal and a second position with respect to the seal with the second position being closer to the seal than the first position; at least one seal piercing element mounted on the flexible base section to move therewith; the flexible base section and the at least one seal piercing element being oriented and positioned relative to the seal to move the at least one seal piercing element through the seal and to cut at least one slit in the seal when the flexible base section moves from the first position thereof to the second position thereof; a pull ring attached to the flexible base section which permits the flexible base section to be removed from the tubular portion when the line of weakness is broken.