Aerosol container with safety device

US6253970A · kind A · utility

Assignee

• Wella GmbH · DE

Inventors

• Udo Kohn · Darmstadt, DE
• Andreas Pohler · Nauheim, DE

Key dates

• Filing date: Jan 24, 2000
• Grant date: Jul 3, 2001
• Expiry date: Jan 24, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7888
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

The aerosol container has a container neck (1); a valve disk (5) arranged in the container neck at least partially sealed to its interior wall (12); a valve device (6) secured in the valve disk for dispensing product from an interior space (11); a circumferential sealing element (3) arranged between a facing or top surface (4) of the container neck and a peripheral edge portion (7) of the valve disk; at least one weakly sealed section (10) provided in the container neck (1) near the sealing element (3) and at least one channel (13) provided in interior wall (12) of the container neck (1), extending to the sealing element (3) from the interior space (11) and reaching or ending at the at least one weakly sealed section (10); whereby product can escapes when a pressure in the interior space exceeds a predetermined limiting value. In a preferred embodiment four channels (13) for venting product and four weakly sealed sections are provided spaced 90.degree. from each other around the container neck.