Tamper-evident closure for liquid containers and bulk containers

US7152767B2 · kind B2 · utility

Assignee

• SIG Technology AG · CH

Inventor

• Fritz Seelhofer · Lindau, CH

Key dates

• Filing date: Jan 4, 2002
• Grant date: Dec 26, 2006
• Expiry date: Jul 25, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D2251/0096
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A guarantee closure having a closure body with a guarantee foil and a pour-out spout as well as a closure cap fitting onto the closure body. The pour-out spout is arranged on the closure body such that it may be pivoted up. The guarantee foil, by pivoting-up the pour-out spout into the pour-out position, is cut open and thus frees the passage to the pour-out spout. The closure body comprises a relief for receiving the guarantee foil and forms above the relief, by two shoulders arranged over one another and distanced from one another, a free space for receiving the lying pour-out spout. This is enclosed and held by a film-hinge material bridge which in the lying condition connects the two shoulders with a surface which seen from the outside is concave and on the upper side of the lying pour-out spout runs together to a point which defines the pivoting axis of the pour-out spout. On pivoting up the pour-out spout the film-hinge material bridge snaps into a permanent shape which is convex when viewed from the outside and thus holds the pour-out spout in the closure position.