Two-piece closure for use in hot-fill containers

摘要

A two-part closure for use in conjunction with a liner. An upper part of the closure is substantially plate like and clips or snaps onto the lower part of the closure. The lowest part of the closure has sidewalls with interior threads or a snap-on rib, as desired. The upper portion of the lower part is open, with crossing ribs positioned a spaced distance above the sealing lip for the lower part.

主权项

1. A closure and liner assembly for use with a container, comprising a two piece closure and a resilient liner, said two-piece closure comprising:
a lower portion having a sealing shoulder for pushing the resilient liner against a mouth of the container to effect a seal for sealing said the mouth of the container, said lower portion having an opening on an upper end and a crossbar spanning the opening; an upper solid portion for covering said opening; said crossbar being spaced from said resilient liner over the length of the crossbar, so that upon the application of heat to the container and expansion of said resilient liner upward, the crossbar allows only a limited travel of the expanding resilient liner upward while maintaining access to the resilient liner and maintaining said seal.