Membrane Seal with Liquid Pouch and RF Antenna for Tamper Detection
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Solution Overview
Problem
Existing membrane seals in containers are vulnerable to manipulation without damage, allowing fraudulent siphoning of contents, which compromises their role in authenticating and securing the product.
Innovation Solution
A membrane seal with a control device for radiofrequency communication and a tamper-evident antenna, combined with a flexible pouch containing a detectable substance, that emits signals upon alteration and integrates near-field communication for authentication, preventing unauthorized access and ensuring product integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If membrane seals are made from fragile materials to ensure authentication, then product security is improved, but they become vulnerable to manipulation without damage
Solution Approach 1:
The patent introduces a liquid crystal layer as an intermediary between the membrane seal and the product. This layer contains capsules with liquid crystal material that changes optical properties when subjected to manipulation forces, providing a detectable indicator of tampering without requiring the membrane seal itself to be extremely fragile.
Solution Approach 2:
The patent employs liquid crystal material that exhibits color or optical property changes in response to mechanical stress or temperature changes caused by manipulation. This allows the seal to visually indicate tampering through color transitions, maintaining security while providing clear evidence of unauthorized access.
2Reliability
If membrane seals are made irreparably damaged to access product, then authentication is improved, but fraudulent operators can siphon contents without damage using fine syringes
Solution Approach 1:
The liquid crystal layer acts as an intermediary detection mechanism that responds to the presence of foreign objects or manipulation forces, even those that do not physically break the seal. When a syringe or other tool interacts with the seal structure, the liquid crystal material detects the stress or temperature change and indicates tampering.
Solution Approach 2:
The patent replaces purely mechanical breakage detection with a physicochemical detection system using liquid crystals. Instead of relying solely on physical damage to the membrane, the system uses materials that respond to mechanical forces through optical changes, detecting manipulation that would otherwise be invisible.
3Reliability
If membrane seals use multiple layers for security, then authentication is improved, but device complexity increases
Solution Approach 1:
The patent embeds capsules containing liquid crystal material within the layers of the membrane seal structure. This nested arrangement integrates the detection functionality directly into the seal itself, rather than adding separate external components. The capsules are distributed throughout the seal layers, creating a compact multi-functional structure.
Solution Approach 2:
The patent combines the sealing function, the authentication function, and the tamper-detection function into a single integrated membrane seal structure. The liquid crystal layer is merged with the seal layers, creating a unified component that performs multiple functions simultaneously, reducing overall system complexity.
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 detects and prevents tampering, ensuring product authenticity and security through radiofrequency signals and visible or invisible dye release, enhancing inventory management and consumer authentication.
Implementation Method 1
a control device, the control device being provided with communication means to send and receive radiofrequency signals and configured to determine the integrity of a first antenna
Implementation Method 2
the membrane seal can comprise a near field communication device comprising a second antenna
Data Source
AI summary
The invention relates to a membrane seal (1) for a container (2) for products, for example a container for food products, cosmetic products, products for medical use, etc. The membrane seal comprises a control device and is configured to facilitate inventory management, authenticate contents, and protect against an ill-intentioned attempt to siphon the content stored in the container (2). The invention also relates to a stopper and a container provided with such a membrane seal.