ES206046U - Perfected closure device for threaded neck containers. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improved closure device for threaded neck containers, of the type of those that are constituted by an internally threaded capsule or lid to allow its threaded coupling to the neck of the container, and provided with an elastic seal for sealing on the mouth of the container. Same to be pressed against it by said capsule or lid, characterized and this is the first of the characteristics claimed that the internal thread of the capsule or closure cap is arranged in such a way that, by screwing it to the neck of the container, its turns do not fill the existing spaces between those of the external thread of said neck, but the turns of the latter make contact only with the lower part of the turns thereof and the lower part of each of said internal turns is spaced above the subsequent external loop, this arrangement that allows the capsule or lid closure, to be incorporated into the neck of the container, being susceptible, with respect to said neck, of a limited longitudinal movement that, however, does not prevent it from exerting a first degree of compression on the sealing disc and against the mouth of the container, through a second metallic disk that rests flat on the aforementioned airtightness disc and which, like this one, has a diameter slightly superior to the external diameter of. Said mouth of the container, the device being completed with a second capsule or counter-cap, of greater height than the capsule or closure cap, which engages thereon and which appears at the bottom capped by a peripheral flange designed to be folded underneath of a flange provided for this purpose around the neck of the container or immediately below its external thread. (Machine-translation by Google Translate, not legally binding)