Recyclable Food Container with Snap-Reseal Cap and Tamper Indicator
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Solution Overview
Problem
Existing food containers with flexible membranes, such as foil or film seals, are not recyclable and require multiple steps to access the food, leading to reduced shelf life and environmental concerns.
Innovation Solution
A food container with a resealable cap made from 100% recyclable materials, eliminating the need for a flexible membrane, and incorporating a visible tamper indicator to ensure product integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flexible membrane seal is used in the food container, then the seal integrity and food preservation are improved, but the recyclability of the container is worsened and the complexity of opening the container is increased
Solution Approach 1:
The patent removes the flexible membrane seal from the container system, extracting the problematic element that prevented recyclability. The solution uses a cap with an integrated sealing mechanism that can be removed without leaving non-recyclable materials in the container body, thus enabling 100% recyclability while maintaining seal integrity through the cap's design.
Solution Approach 2:
The patent merges the sealing function with the cap structure by integrating a sealing rim or gasket directly into the cap assembly. This combination allows the cap itself to provide the sealing function that previously required a separate flexible membrane, eliminating the need for non-recyclable seal components while maintaining effective food preservation.
2Reliability
If a flexible membrane seal is used in the food container, then the seal integrity is improved, but the number of steps to access the food is increased and shelf life is reduced
Solution Approach 1:
The patent segments the sealing function from the cap by providing a removable cap assembly that can be easily detached from the container body. The cap includes an integrated sealing mechanism that can be removed in a single action, allowing consumers to access the food product without having to peel or manipulate separate flexible membranes, thus reducing the number of steps required for access.
Solution Approach 2:
The patent introduces a dynamic sealing mechanism where the cap can be easily removed and reattached. The sealing rim or gasket is designed to maintain seal integrity during storage but allows for easy removal when access is needed. This dynamic design enables the seal to transition between sealed and open states without requiring complex manipulation of separate membrane components.
3Ease of operation
If the cap is made removable for access, then the ease of operation is improved, but the seal integrity and food preservation are worsened
Solution Approach 1:
The patent applies local quality by providing a dedicated sealing rim or gasket at the interface between the cap and container body. This localized sealing element is specifically designed to maintain seal integrity when the cap is attached, while allowing for easy removal when access is needed. The sealing function is concentrated at the critical interface rather than requiring the entire cap structure to be complex.
4Reliability
If a flexible membrane is used for sealing, then the seal integrity is improved, but the environmental impact is worsened due to non-recyclability
Solution Approach 1:
The patent extracts and removes the flexible membrane seal from the container system, eliminating the non-recyclable component that caused environmental harm. The container body and cap are designed to be 100% recyclable materials, and the sealing function is achieved through the cap's integrated mechanism rather than through separate membrane materials that would contaminate the recycling process.
Data Source
AI summary
A food container includes a main plastic body terminating in an upper rim having a ledge portion, a resealable cap configured to seal against the ledge portion when snap-connected to the upper rim and an externally visible tamper indicator integrated into the container body below the upper rim. The cap includes an opening tab which, upon initially opening the container, is lifted to break one or more frangible connections with the tamper indicator. When the food container cap is presented for sale, the tamper indicator is clearly visible to a consumer. When the cap is completely removed, the tamper indicator radially projects from the container body. The cap can be used to selectively reseal the main body upon seating the seal portion on the ledge portion and snap-connecting the cap to the upper rim.