Patent ID: 8944271
Filing Date: 2015-02-03
Classification: B65D

Abstract:
1. A tube head assembly comprising: a tube head comprising a neck defining a longitudinal axis, a shoulder and a solid insert forming a lid closing the neck, a cap comprising a punch adapted to cut the lid, said cap being adapted to be screwed onto said neck, and configured in such a way that when said cap is screwed onto the neck the punch is inserted into an interior of the neck, a removable spacing ring bearing against the shoulder around the neck, the removable spacing ring and the cap being formed integrally in one piece and joined by material bridges, the removable spacing ring having an internal diameter greater than an external diameter of said cap, so as to enable the cap to slide through the removable spacing ring after breakage of said material bridges, characterized in that the removable spacing ring comprises internal stops adapted to limit movement of said cap through the removable spacing ring in such a way as to keep the punch spaced from the lid when the cap is screwed onto the neck and butted against the removable spacing ring.