Tamper-Evident Food Container With Frangible Score Line
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Solution Overview
Problem
Existing tamper-evident food containers often leave a frangible strip after opening, which is inconvenient and does not effectively ensure the integrity and security of the container when resealed.
Innovation Solution
A tamper-evident food container design featuring a coupling flange system with convex and concave portions for secure sealing, and a frangible score line with a pull tab for easy detachment, eliminating the need for a leftover strip upon resealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a frangible strip is used in existing tamper-evident food containers, then the container provides tamper evidence, but a residual strip remains after opening which is inconvenient for users
Solution Approach 1:
The patent removes the frangible strip component entirely from the container design. Instead of having a strip that tears off and leaves residue, the invention uses a frangible score line directly formed in the container wall that allows the container to be opened without any residual strip, thereby eliminating the inconvenience while maintaining tamper evidence capability through the scoring mechanism itself
Solution Approach 2:
The patent eliminates the need to deal with discarded frangible strip residue by designing the opening mechanism to break cleanly along the frangible score line without leaving any้็ material on the container, allowing users to open the container without having to remove or clean up residual strips
2Reliability
If a frangible strip is used for tamper evidence, then the container shows opening status, but the residual strip complicates resealing and storage
Solution Approach 1:
The patent extracts and removes the frangible strip component that causes complexity. The frangible score line is formed directly in the container wall without any separate strip attachment, eliminating the residual strip that would otherwise complicate resealing and storage operations while maintaining the tamper evidence function through the breaking mechanism itself
3Reliability
If a coupling flange system with convex and concave portions is used, then the sealing integrity is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent merges the coupling flange structure with the container rim by forming the coupling flange as an integrated part of the container wall through extrusion. The convex and concave portions are formed directly during the extrusion process, combining multiple functions (sealing, coupling, structural support) into a single integrated component that maintains sealing integrity while simplifying manufacturing compared to assembling separate parts
Data Source
AI summary
A tamper-evident food container includes a container body and a cover respectively having a coupling flange with sealing structure, and the cover has an enlarged surface, a frangible score line, and a pull tab on at least one end of the frangible score line. when the cover fastens to the container body, the plurality of the male engaging members are fixed into the female engaging members and the downward hem is inserted into the recessed portion; when opening the cover, upward pulling the pull tab to tear the frangible score line for detaching the cover from the second enlarged surface. Thus, the present invention ensures the integrity, security, and the ability to maintain high quality the food reserved in the tamper-evident food container.