Container with snap cover having frangible portions

US4006839A · kind A · utility

Assignee

• Bellaplast GmbH · DE

Inventors

• Alfons W. Thiel · Mainz, DE
• Hans Hell · Wiesbaden, DE

Key dates

• Filing date: Mar 10, 1976
• Grant date: Feb 8, 1977
• Expiry date: Mar 10, 1996

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D2543/00842
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A container assembly wherein an initially filled container and its closure cover have coextensive flat edge regions attached by welds and also have independent snap fit connection. To safeguard against unauthorized opening and reclosing, provision is made for producing a tear line pattern in the cover upon detaching the edge regions at the welds, such rendering the edge regions incapable of undetectable reassembly to initial cover closed condition, but not affecting the ability of the snap fit connection to more or less temporarily reclose the assembly.