Flexible stopper perfected (Machine-translation by Google Translate, not legally binding)

摘要

An improved flexible stopper, constructed in elastic artificial resin of any nature or similar material, characterized by comprising, under a head or area of settlement against the edge of the container to be sealed, a flexible and elastic body, equipped or n6 of expansion by the own material, or in combination with the internal pressure of the container, whose body presents on the external surface, sealing means, consisting of at least one cord, fillet or the like, of any straight section, in correspondence with means of retention practiced in the internal area of the neck or curb to be sealed. (Machine-translation by Google Translate, not legally binding)