Blister Card Retention Feature for Upright Stability

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Solution Overview

Problem

Conventional blister card packages are difficult to open and pose a risk of injury from rough edges, and they lack visual interest and stability, particularly when made primarily of paperboard.

Innovation Solution

A blister card package design where the blister is more firmly attached to one panel and less firmly attached to another, allowing an edge or opening on the second panel to engage a feature of the blister to hold the package in a specific configuration, such as standing upright, without causing damage to either component.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the blister is firmly attached to both panels, then the package structure is stable, but the package cannot be opened and may cause injury from rough edges

Engineering Contradiction:

Improvepackage structure stabilityVSAvoidease of opening

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The attachment between the blister and the second panel is segmented into two zones: a first portion with strong attachment (via adhesive or heat seal) providing structural stability, and a second portion with weak attachment (via friction fit or mechanical interlock) allowing easy removal. This segmentation resolves the contradiction by providing both stability and ease of opening in different regions of the same package.

Inventive Principle:

Principle #1Segmentation

2Ease of manufacture

If the card is made planar and flat, then the manufacturing is simple, but the package lacks visual interest and does not stand upright readily

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidvisual interest and upright stability

Core Design Contradiction:

Ease of manufactureVSShape

Solution Approach 1:

The card transitions from a two-dimensional planar structure to a three-dimensional structure by allowing the second panel to be positioned at an angle relative to the first panel. The blister acts as a hinge or connector that enables this angular configuration, giving the package visual interest and upright stability while maintaining simple manufacturing processes.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Reliability

If the blister is made from polymeric materials, then the package is tamper resistant, but consumers disapprove due to difficulty of opening and potential for injury

Engineering Contradiction:

Improvetamper resistanceVSAvoidease of opening

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Different regions of the blister have different attachment qualities: the first panel connection provides strong tamper resistance, while the second panel connection provides easy opening. This local differentiation of attachment strength allows the package to be both secure and user-friendly.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS9346597B2Blister card with retention feature

Publication Date: 2016.05.24 WESTROCK MWV LLC

AI summary

A package is disclosed which includes first panel (210) having a blister (150) attached thereto. A second panel (220) is hingedly attached to the first panel (210). The second panel (220) includes a cutout area (221) through which the blister body protrudes. A retention feature (155) on the blister body engages an edge of the cutout (221) to hold the second panel (220) in a position relative to the first panel (210).