Patent ID: 6103170
Filing Date: 2000-08-15
Classification: B29C,B65D

Abstract:
A method for forming a liner in a plastic closure for a container, said closure comprising a base wall and a peripheral skirt having interengaging means on an inner surface of said skirt for engaging a container, said method comprising the steps of:delivering a molten plastic pellet into a closure,compression molding said molten plastic pellet to form said liner on an inner surface of the base wall of said closure,said step of compression molding said liner being such as to form the liner with a periphery having a peripheral edge spaced radially inwardly of said peripheral skirt and said interengaging means on said skirt, said periphery of said liner including an outer surface spaced axially from said base wall, and being inclined inwardly toward an axis of said closure and axially away from said base wall,said inclined outer surface on said periphery of said liner extending continuously from said peripheral edge at a constant angle radially and axially of said base wall.