Foodstuff packaging assembly and related methods

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Solution Overview

Problem

Existing foodstuff packaging systems lack an efficient method for heating specific food items within the package without damaging other contents, particularly when using external heat sources like microwaves.

Innovation Solution

A foodstuff packaging assembly that includes a heating element with a chemically-activated material, such as zinc, which generates heat when oxygen reacts with it. This heating element is designed to be self-contained within the packaging, allowing for the selective heating of one foodstuff without affecting another.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a heating element is added to the packaging assembly, then the first foodstuff can be heated to liquid state, but the device complexity increases

Engineering Contradiction:
Improveheating capabilityVSAvoidpackaging assembly structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The heating element is nested within the packaging assembly structure, with the chemically-activated material contained inside a heating element that is itself integrated into the packaging. This nested arrangement allows the heating functionality to be incorporated without significantly increasing the external dimensions or complexity of the packaging assembly.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The heating element uses chemically-activated material that generates heat through chemical reaction with oxygen or water, eliminating the need for external power sources or complex heating mechanisms. This self-service approach provides heating capability while maintaining simple packaging structure.

Inventive Principle:
Principle #25Self-service

2Productivity

If the first foodstuff is heated to liquid state, then it can mix with the second foodstuff, but the second foodstuff may be damaged by heat

Engineering Contradiction:
Improvefood preparation efficiencyVSAvoidheat damage to second foodstuff
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The heating element is positioned and configured to provide localized heating to only the first foodstuff compartment. The packaging assembly includes thermal barriers or design features that concentrate heat in the intended area, preventing heat from reaching the second foodstuff and causing damage while still achieving the desired mixing effect.

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If a chemically-activated heating material is used, then external power sources are eliminated, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvepower source independenceVSAvoidchemical material placement
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The heating element uses consumable chemically-activated material that is depleted after use. This approach accepts the need for precise manufacturing during production but eliminates the need for complex precision control mechanisms during operation, as the chemical reaction naturally provides the required heating function until the material is exhausted.

Inventive Principle:
Principle #34Discarding and recovering

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The packaging system effectively heats the first foodstuff to a liquid state, allowing it to mix with a second foodstuff without damaging the latter, thus providing a convenient and safe method for preparing combined food items.

Implementation Method 1

the chemically-activated material may be an oxygen-activated material... When the oxygen chemically reacts with the zinc, the zinc may become zinc oxide

Methodology Applied
Scientific EffectOxidation: Oxidation

Implementation Method 2

causing the first portion of the heating element to generate heat

Methodology Applied
Scientific EffectExothermic reaction: Exothermic Reaction

Implementation Method 3

The inner surface of the first portion of the heating element may be disposed adjacent the outer surface of the base portion of the foodstuff container

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP3519320B1Foodstuff packaging assembly and related methods
Publication Date: 2025.02.19 KELLANOVA
  • EP3519320B1 patent drawingFigure 1
  • EP3519320B1 patent drawingFigure 2A
  • EP3519320B1 patent drawingFigure 2B

AI summary

An assembly (10) includes foodstuff packaging (12, 14, 20), a first foodstuff (16), and a second foodstuff (18). The foodstuff packaging ( 12, 14, 20) includes a portion (14) configured to generate heat. The first foodstuff (16) is disposed within the foodstuff packaging (12, 14, 20) and includes a first foodstuff (16) material configured to transition from a first state to a second state upon application of the heat. The second foodstuff (18) is disposed within the foodstuff packaging (12, 14, 20) and is (i) separated from the first foodstuff (16) when the first foodstuff (16) is arranged in the first state and (ii) comingled with the first foodstuff (16) when the first foodstuff (16) is arranged in the second state to define a comingled foodstuff.