Hermetic closure device simplified for bottles. (Machine-translation by Google Translate, not legally binding)

摘要

Simplified sealing device for flasks, which is essentially characterized by being composed of three main elements, the first determined by a closed-bottom tubular plug, provided in the center thereof with a medical seal; the second by an inverted bowl of elastic material, with a coaxial tubular central seat suitably shaped and oriented to cooperate with that shutter; and the third by the neck of the container itself, neck, which is endowed with an extreme reduction of its outer diameter and a peripheral annular throat adjacent to such reduction and proper to receive and immobilize said cup. (Machine-translation by Google Translate, not legally binding)