Closure with frangible tamper-evident band

Abstract

This invention relates to closures for containers, and more particularly to tamper-evident closures for containers. One aspect of the invention provides a container and a closure for connection to said container, said closure including: an upper wall (102), a skirt (104) formed integrally with and extending downwardly from said upper wall, said skirt adapted to engage with a neck portion of the container to secure the closure to the container; a tamper-evident band (110) frangibly connected to said skirt; the neck (10) of the container including a plurality of discretely spaced projections (18) extending outwardly from said neck and adapted to engage with tabs (122) on said tamper-evident band to facilitate breaking of the band (110) from the skirt of the closure.

Description

FIELD OF THE INVENTION [0001] The present invention relates to closures for containers, and more particularly to tamper-evident closures for containers. BACKGROUND TO THE INVENTION [0002] Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior at is widely known or forms part of common general knowledge in the field. [0003] There exists extensive prior art in relation to the design and manufacture of tamper-evident closures for containers, such as for example U.S. Pat. No. 4,653,657 (Papavasilopolous), U.S. Pat. No. 4,807,771 (Roy), U.S. Pat. No. 5,660,288 (Nyman), U.S. Pat. No. 6,551,093 (Taha) and U.S. Pat. No. 6,640,988 (Taha) the disclosures of which are hereby Incorporated into this specification by way of cross-reference. [0004] One problem that exists with prior art tamper-evident closures is the lose of between the closure and container opening prior to the tamper-evidence features operating. [0005] A furthe...

AI Technical Summary

Benefits of technology

[0008] One aspect of the present invention deals especially with the need for a proper relationship between sealing means and tamper-evidence means such that the tamper-evidence means operates prior to the seal being breached. This avoids the possibility apparent with many so-called tamper-evident closures whereby by malicious tampering or inappropriate application torque and / or relaxation of the closure causing the seal between closure and container neck to be breached without the tamper-evidence means operating and allowing the contents to be degraded by action of atmosphere or the malicious introduction of contaminants.

Problems solved by technology

One problem that exists with prior art tamper-evident closures is the lose of between the closure and container opening prior to the tamper-evidence features operating.

A further problem is the poor visibility of the status of the tamper-evident features, with the consequence that a consumer may not discern that the seal of the container has been broken.

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