Handheld Aerosol Device Piercing Foil Opening Element

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Solution Overview

Problem

Existing aerosol-generating devices face issues with leakage of liquid aerosol-forming substrates from cartridges before use and during attachment, due to the need for manual removal of sealing foils.

Innovation Solution

A handheld aerosol-generating device with a cartridge receiving region equipped with an opening element that automatically pierces the sealing foil of the cartridge upon insertion, preventing leakage and eliminating the need for manual foil removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a sealing foil is provided on the cartridge to prevent leakage, then leakage prevention is improved, but the device complexity increases due to the need for manual removal and proper attachment procedures

Engineering Contradiction:
Improveleakage preventionVSAvoidattachment procedure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The opening element automatically pierces the sealing foil when the cartridge is inserted into the cartridge receiving region, eliminating the need for manual removal of the sealing foil by the user. The system performs the opening action itself during the insertion process.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The opening element is pre-positioned in the cartridge receiving region to perform the piercing action automatically upon cartridge insertion, before the user needs to access the liquid aerosol-forming substrate. This preliminary automated action simplifies the overall attachment procedure.

Inventive Principle:
Principle #10Preliminary action

2Ease of manufacture

If manual removal of sealing foil is required, then ease of manufacture is improved, but loss of time increases due to user intervention before use

Engineering Contradiction:
Improvecartridge sealingVSAvoidtime for foil removal
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

The device automatically performs the foil piercing function through the opening element during cartridge insertion, eliminating the time-consuming manual removal step. The system serves itself by integrating the opening mechanism into the insertion process.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The piercing action is performed automatically as part of the insertion sequence, before the user needs to use the device. This preliminary automated action eliminates the time loss associated with manual foil removal at the point of use.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If manual sealing foil removal is implemented, then device complexity is reduced, but object-generated harmful factors increase due to potential leakage during attachment

Engineering Contradiction:
Improveopening mechanismVSAvoidliquid leakage
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

The opening element automatically and precisely pierces the sealing foil during insertion, ensuring controlled opening without leakage. The system performs the opening function itself with precision, eliminating the harmful effect of leakage that occurs with manual removal.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The sealing foil is pierced automatically upon cartridge insertion, before the attachment process completes. This preliminary automated piercing ensures proper opening is achieved before liquid flow begins, preventing leakage during the attachment process.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4266917B1Handheld aerosol-generating device with opening element
Publication Date: 2025.02.05 PHILIP MORRIS PRODUCTS SA
  • EP4266917B1 patent drawingFigure 1
  • EP4266917B1 patent drawingFigure 2
  • EP4266917B1 patent drawingFigure 3

AI summary

The invention relates to a handheld aerosol-generating device that may comprise a cartridge receiving region configured for receiving a cartridge. The cartridge may comprise a liquid aerosol-forming substrate. The cartridge receiving region may comprise an opening element. The opening element may be configured to pierce a sealing foil of the cartridge, when the cartridge is received in the cartridge receiving region. The invention further relates to an aerosol-generating system comprising a cartridge and an aerosol-generating device and to a method of attaching a cartridge to an aerosol-generating device.