Tamper-Evident Food Container Closure With Tear Release Flap
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Solution Overview
Problem
Existing tamper-evident food containers often result in unnecessary waste and do not provide a clear visual indication that the container has been opened, posing concerns for consumers and vendors.
Innovation Solution
A tamper-evident food container design featuring a release flap and a closure tab integrally formed with the container, where the release flap provides a visible indication of opening by tearing, and the closure tab ensures the container remains secured after initial use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional tamper-evident features are used, then the container can indicate opening, but the indication is not clear or visible without closer inspection
Solution Approach 1:
The release flap utilizes color changes through tearing to provide visual tamper indication. When the release flap is torn from the container, the torn edges create a visible color contrast or pattern change that clearly indicates the container has been opened, making the tamper evidence immediately apparent without requiring close inspection
2Loss of information
If conventional tamper-evident features are used, then opening indication can be provided, but material removal results in unnecessary waste
Solution Approach 1:
The release flap is designed as a separate, removable segment from the main container structure. This segmentation allows the tamper indication function to be isolated to the flap portion, which can be torn or removed to provide clear visual evidence of opening, while the rest of the container remains intact and reusable, minimizing material waste
Solution Approach 2:
The release flap is designed to be discarded after providing its tamper indication function through tearing or removal. However, the main container body and closure tab are recovered and can be reused for storing and transporting the container, thereby minimizing overall material waste while maintaining tamper evidence capability
3Reliability
If the container is designed to be securely closed, then tamper prevention is improved, but ease of operation for legitimate users may be reduced
Solution Approach 1:
The release flap acts as an intermediary element between the container body and the closure tab. It provides a simple, intuitive tearing or lifting action for authorized users to open the container, while simultaneously serving as a security barrier that would be obvious to unauthorized individuals attempting to open the container without proper authorization
Data Source
AI summary
A unitary blank having a body portion having an upper edge, a lower edge, a first outer edge and a second outer edge opposite the first outer edge, the body portion further having a plurality of fold lines to define a plurality of body wall portions. A handle portion extending from at least one of the first outer edge and the second outer edge. A first body wall portion including a first closure tab portion extending from the first body wall portion. A second body wall portion including a second closure tab portion extending from the second body wall portion, wherein the first closure tab portion is configured to be joined with the second closure tab portion to form a closure tab when the blank is formed into a container. A cover portion extending from the upper edge of the second body wall portion and configured to receive the closure tab.