Patent ID: 7458486
Filing Date: 2008-12-02
Classification: B65D

Abstract:
1. A self-opener closure for composite packagings or for container spouts to be closed with film material, comprising: a pour-out spout capable of being sealingly assembled onto a composite packaging, a container spout or bottle spout closed with a film material; rotary cap for said pour-out spout; and, a self-opener sleeve within said pour-out spout, said self-opener sleeve being rotatable via said rotary cap, and having at a lower edge and projecting from said lower edge of self-opener sleeve, least one combined piercing and cutting member, said self-opener sleeve, said pour-out spout and said rotary cap being equipped with guide and transmission means cooperating with one another, so that upon rotating said rotary cap for an initial time in a direction for opening, said self-opener sleeve is pushable axially downwards in said pour-out spout, the initial time, being without rotation, and for subsequent times, following the initial time, being rotatable about a rotary axis of said self-opener sleeve without axial movement.