Snap-on seal arrangement on a container

US5848717A · kind A · utility

Assignee

• Crown Cork · CH

Inventors

• Udo Bosl · Eimeldingen, DE
• Michael Kirchgessner · Egringen, DE

Key dates

• Filing date: Mar 25, 1997
• Grant date: Dec 15, 1998
• Expiry date: Mar 25, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D41/18
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A snap-on seal arrangement comprising a container and a sealing cap is provided. The sealing cap comprises an elastically expandable cylindrical wall and at least one elastically deformable retaining bead for attachment to a container mouth having an external bead. An engagement surface of the retaining bead can be brought into effective engagement with an engagement surface of the external bead, wherein after the cap has been placed on, the engagement surface of the retaining bead of the sealing cap works together with the engagement surface of the external bead on the container mouth to enclose a radially outward-expanding gap. The retaining bead is elastically deformable such that the gap decreases in size or closes under the action of positive pressure in the container.