Patent ID: 7611026
Filing Date: 2009-11-03
Classification: B65D

Abstract:
1. A plastic closure that includes: a plastic closure shell having a base wall with a central opening, a skirt for securing the closure to a container neck finish and an internal ledge on said skirt adjacent to but spaced from said base wall, a plastic disk retained within said shell, said plastic disk including a plurality of axially extending spacer elements around said disk to engage an underside of said base wall and space said disk from said base wall of said shell, angular gaps between said spacer elements to permit flow of fluid from said central opening, between said base wall and said disk and through said gaps, and a periphery of said disk disposed between said internal ledge and said base wall to capture said disk within said shell such that said disk is free to rotate within said shell, and a resilient sealing liner molded on an underside of said disk for sealing engagement with a container neck finish.