Container, closure, and package

摘要

A closure inner shell includes an annular skirt extending axially from a base wall and having an external thread segment. The base wall may have a central passage and the skirt may have circumferentially spaced petals. A closure outer shell may include a vented plug seal extending axially through the central passage of the inner shell, and an annular outer skirt to engage the petals of the inner shell and having an internal thread segment for threaded engagement with the external thread segment of the inner shell. A container may include a container neck bead for engagement with the petals, an inner annular sealing surface for engagement with the plug seal, and an inner annular relief to cooperate with the vented plug seal to establish a vent path.

主权项

1. A closure for a container having a neck with an external bead, which closure includes:
an inner shell including an inner shell base wall having a central passage, and an annular skirt extending axially from the base wall radially outward of the central passage and having an outer surface and at least one external thread segment projecting from the outer surface; and an outer shell coupled to the inner shell and including an outer shell base wall, a plug seal extending axially from the outer shell base wall through the central passage of the inner shell base wall, and an annular outer skirt extending axially from the outer shell base wall radially outward of the plug seal and having at least one internal thread segment for threaded engagement with the at least one external thread segment of the inner shell, wherein the plug seal is an annular seal and the base wall of the inner shell is axially retained between the annular seal and the outer shell base wall, wherein the outer shell also includes an annular wall and an annular enlargement extending radially outwardly from the annular wall and having an outer surface with an outer diameter greater than an inner diameter of the central passage.