DOUBLE-WALL CLOSURE

摘要

A composite closure having a double-wall configuration facilitates convenient use by consumers, and permits in-shell formation of a sealing liner. The closure includes an outer closure cap having inner and outer annular skirt portions arranged in concentric relationship with each other. The closure includes a sealing liner formed in the closure cap at the inside surface of the top wall portion of the closure cap. A method of compression-molding the sealing liner is disclosed.

主权项

1. A closure for an associated container, comprising:
a closure cap having a top wall portion, a first outer annular skirt portion, and a second, inner annular skirt portion, said first and second skirt portions depending from said top wall portion in generally concentric relationship with each other, said inner skirt portion being positioned inwardly of said outer skirt portion, said inner skirt portion having at least one helical, internal thread formation on an inside surface of said inner skirt portion for engagement with an external thread formation on the associated container, said inner skirt portion having a generally cylindrical outer surface, said outer skirt portion extending further from said top wall portion than said inner skirt portion, and having an inner surface which is generally cylindrical and concentric with said outer surface of said inner skirt portion, and a sealing liner positioned on the inside surface of said top wall portion within said inner skirt portion, said sealing liner being spaced inwardly from the inside surface of said inner, annular skirt portion, and being concentric with said internal thread formation.