Tamper-Evident Security Cover With Weakness Zone
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Solution Overview
Problem
Current security measures for containers, such as heat-shrink sleeves, are insufficient in preventing tampering as they can be easily replaced or reinstalled, lacking a robust mechanism to detect manipulation.
Innovation Solution
A security cover with a heat-shrink sleeve and a security strip featuring zones of weakness, strategically placed around the container's finish, which compresses and stresses when attempted to be removed, leaving visible signs of tampering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heat-shrink sleeve is used to cover the container, then the container is protected from opening, but the sleeve can be easily replaced or reinstalled by dishonest people
Solution Approach 1:
The security cover is divided into two distinct components: a heat-shrinkable sleeve and a separate security strip. The security strip contains a zone of weakness that segments the structural integrity, so that any attempt to remove or replace the sleeve will cause the strip to tear at the predetermined zone, providing visible evidence of tampering while keeping the overall design relatively simple.
Solution Approach 2:
A zone of weakness is pre-established in the security strip during manufacturing. This preliminary action creates a predetermined failure point that will activate under specific conditions (attempted removal), allowing the system to detect tampering without requiring complex sensors or active components.
2Reliability
If a simple sealing capsule is used, then the container is protected from opening, but dishonest people can easily replace the capsule with another
Solution Approach 1:
The security strip with its zone of weakness acts as a preliminary anti-action mechanism. Before any replacement can occur, the predetermined weak zone ensures that the security strip will tear and provide visible evidence of the attempted replacement, thereby preventing dishonest people from successfully replacing the capsule without detection.
3Reliability
If the security strip is placed below the finish of the container, then the strip is strongly stressed during removal attempts, but this requires precise positioning for optimal effectiveness
Solution Approach 1:
The security strip is positioned at a specific location below the finish of the container where it experiences maximum stress during removal attempts. This local positioning optimizes the effectiveness of the zone of weakness, ensuring that tampering detection is most reliable at this critical location while maintaining manufacturability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents reinstallation of the sleeve by ensuring the security strip tears upon attempted removal, providing enhanced protection against container tampering.
Implementation Method 1
a sleeve made of heat-shrink plastic
Implementation Method 2
the security strip presenting at least one line of cut passing under the strip. Thus, during an attempt at removing the sleeve, the sleeve will tear along the line of cut, thereby causing the strip to delaminate at least in part
Data Source
AI summary
The invention relates to a security cover designed to surround a container, the cover comprising a sleeve (1) and a security strip (2) secured to an inside face of said sleeve and including at least one zone of weakness, the security strip being shaped so that when in service it surrounds the container below a finish of the container and in the immediate proximity of said finish, the security strip thus creating a compression zone compressing the container. The invention also relates to a container covered with such a cover.