Tamper-Evident Bag with Segmented Tear Lines for Integrity Verification

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Solution Overview

Problem

There is a need for a tamper-evident bag solution that ensures customers can verify if the contents have not been accessed or tampered with during food delivery, as existing bags lack a reliable mechanism to confirm their integrity post-sealing.

Innovation Solution

A tamper-evident bag design featuring top and bottom panels connected along edges with tear lines that create removable sections, allowing for a controlled exit opening when sealed, ensuring that any access to the contents results in visible damage, thus indicating tampering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a standard sealed bag is used, then the bag is simple and easy to use, but there is no way to verify if the contents have been tampered with

Engineering Contradiction:

Improveverification of content integrityVSAvoidbag structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The bag incorporates tear lines that segment the panel into removable sections, allowing the bag to be opened in a controlled manner while providing visual evidence of opening through the segmented tear pattern

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The tear lines are pre-formed during manufacturing, creating predetermined breaking points that guide the opening process and ensure visible evidence of opening before the actual opening occurs

Inventive Principle:

Principle #10Preliminary action

2Reliability

If a tamper-evident mechanism is added to the bag, then customer confidence is enhanced, but the manufacturing process becomes more complex

Engineering Contradiction:

Improvecustomer confidence in delivery integrityVSAvoidmanufacturing process simplicity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The tear lines divide the bag panel into segments that can be easily removed, creating a simple yet effective tamper-evident mechanism that demonstrates opening through the segmented structure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The tear lines create a disposable opening mechanism where the panel section is removed after use, providing tamper evidence through the irreversible removal of the segmented section

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Reliability

If tear lines are added to create removable sections, then tamper evidence is provided, but the bag structure becomes more complex

Engineering Contradiction:

Improvetamper evidence capabilityVSAvoidpanel structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The panel is segmented by tear lines into removable sections, creating a simple structural modification that provides clear visual evidence of tampering when sections are removed

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of trying to prevent opening, the design accepts opening as inevitable and provides evidence through the inverted approach of creating easy-to-remove sections that clearly show when opening occurs

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS10604305B2Tamper evident bag

Publication Date: 2020.03.31 INTEPLAST GROUP CORPORATION

AI summary

A tamper evident bag includes a top panel and a bottom panel connected together to define a bag interior between the top and bottom panels. The top panel defines a receiving opening sized and shaped for inserting one or more items into the bag interior. The top and bottom panels each have a tear line with a first end and a second end, the first and second ends being located at the first side edge margin. The first and second ends of each tear line being spaced apart. The tear lines extend over the top and bottom panels and define respective tear out sections of the top and bottom panels. The tear out sections are joined along the first side edge margin and are configured to be removed to create an exit opening.