Bottom for a package with internal overpressure

US6173857A · kind A · utility

Assignee

• Tetra Laval Holdings & Finance S.A. · CH

Inventors

• Håkan Olsson · Nödinge, SE
• Anders Hilmersson · Helsingborg, SE

Key dates

• Filing date: Oct 28, 1998
• Grant date: Jan 16, 2001
• Expiry date: Oct 28, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D7/04
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A three part package of polymer coated aluminum for fill-goods under pressure includes a for example frusto-conical barrel, a top and a bottom. The bottom includes a central, circular dome facing inwardly in the package, outside thereof a circular portion, which is inwardly curved and extends toward the barrel, and a rim, which extends downwardly from the curved portion and is intended for sealing to the barrel.