Patent ID: 8893906
Filing Date: 2014-11-25
Classification: B65D

Abstract:
1. A metal closure comprising: a circular, closure panel having an internal surface extending to a periphery; a concentric channel extending from the periphery along an angled wall into a parallel wall generally parallel to the closure panel, the parallel wall extending into a first rounded wall having a center of radius within the closure, wherein the parallel wall is offset from the closure panel by a first distance; a concentric flange extending from the first rounded wall into a second rounded wall having a center of radius external to the closure into a transition wall which extends into a third rounded wall having a center of radius within the closure, wherein the first rounded wall transitions into the second rounded wall at a second distance from the periphery, the second distance being at least 2 times as large as the first distance; a cylindrical skirt extending from the concentric flange; at least 4 equally spaced rolled flanges extending from the cylindrical skirt; at least one thread engagement flange located between each pair of rolled flanges; and a resilient polymeric material which fills the concentric channel.