Deformable Airflow Capsule for Ignition-Resistant Aerosol Articles

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Aerosol generating articles are susceptible to accidental ignition when users attempt to light them with a flame or other ignition sources due to airflow that can sustain combustion of the aerosol generating substrate.

Innovation Solution

An aerosol generating article with a deformable airflow barrier, such as a deformable capsule, that prevents airflow when undeformed and allows airflow when deformed, reducing the risk of ignition, and optionally includes a crushing tool for high crush strength capsules to ensure child safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If airflow is provided through the aerosol generating article, then aerosol generation is enabled, but susceptibility to ignition increases

Engineering Contradiction:

Improveaerosol generationVSAvoidignition susceptibility

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The airflow barrier is designed as a deformable capsule that can change its state from closed to open based on user action. When undeformed, it blocks airflow and prevents ignition; when deformed by user action, it permits airflow for aerosol generation. This dynamic state change resolves the contradiction between preventing ignition and enabling aerosol generation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The deformable capsule is pre-positioned in a closed state to prevent ignition before use. The user must first perform the preliminary action of deforming the capsule to initiate airflow and activate aerosol generation. This preliminary protective state eliminates the ignition risk before the harmful effect can occur.

Inventive Principle:

Principle #10Preliminary action

2Object-affected harmful factors

If a deformable capsule is used to prevent airflow, then ignition resistance is improved, but device complexity increases

Engineering Contradiction:

Improveignition resistanceVSAvoidstructure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The airflow barrier is implemented as a deformable capsule made of flexible material. This simple flexible structure provides effective airflow blocking when closed and easy deformation by user action, avoiding the need for complex mechanical valves or electronic controls while achieving ignition resistance.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The deformable capsule is designed as a simple, inexpensive component that can be easily manufactured and disposed of after use. Its simplicity reduces device complexity while its temporary nature means it doesn't require maintenance or complex recovery mechanisms.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

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 deformable capsule effectively prevents accidental ignition and allows controlled airflow for aerosol generation, enhancing user safety and providing child-proof functionality.

Implementation Method 1

the airflow barrier comprising a deformable capsule which substantially prevents airflow from the distal end to the mouth end when in an undeformed state

Methodology Applied

Scientific EffectPhysical barrier:

Implementation Method 2

an aerosol generating device for heating the aerosol generating substrate, without burning the aerosol generating substrate, to volatise at least one component of the aerosol generating substrate

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 3

heating the aerosol generating substrate, without burning the aerosol generating substrate, to volatise at least one component of the aerosol generating substrate and thereby generate a vapour

Methodology Applied

Scientific EffectVaporisation: Evaporation

Implementation Method 4

generate a vapour which cools and condenses to form an aerosol for inhalation by a user

Methodology Applied

Scientific EffectCooling: Cooling

Implementation Method 5

generate a vapour which cools and condenses to form an aerosol for inhalation by a user

Methodology Applied

Scientific EffectCondensation: Condensation

Implementation Method 6

which is deformable by a user into a deformed state which permits airflow from the distal end to the mouth end

Methodology Applied

Scientific EffectMechanical deformation: Deformation

Data Source

PatentUS12550929B2Aerosol generating article and an aerosol generating system

Publication Date: 2026.02.17 JT INTERNATIONAL SA

AI summary

An aerosol generating article includes a wrapper, an aerosol generating substrate positioned in the wrapper to form a rod having a mouth end and a distal end upstream of the mouth end, and an airflow barrier positioned in the wrapper. The airflow barrier includes a deformable capsule which substantially prevents airflow from the distal end to the mouth end when in an undeformed state. The deformable capsule is deformable by a user into a deformed state which permits airflow from the distal end to the mouth end.