Aerosol-generating device and cartridge with movable seal

EP4654845A1Pending Publication Date: 2025-12-03PHILIP MORRIS PRODUCTS SA
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Patent Information

Application Number
EP2024701022
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-01-27
Filing Date
2024-01-19
Publication Date
2025-12-03

AI Technical Summary

Technical Problem

Aerosol-generating devices face issues with leakage of aerosol-forming substrates, contamination from pierceable sealing elements, environmental impact, user experience, and complexity, particularly in inductively heated systems where separate disposable sealing means can disturb the induction coil's performance.

Method used

A cartridge design with a slidably movable heating assembly within an inner airflow channel, featuring a fluid permeable wall portion and a susceptor member, which transitions from a sealing position to an operating position upon device attachment, allowing for aerosolization and airflow characteristics while minimizing substrate exposure and oxidation.

Benefits of technology

The solution reduces aerosol-forming substrate leakage, extends shelf life, improves user experience by eliminating separate disposable seals, and maintains induction coil performance, while being environmentally friendly and reducing manufacturing complexity.

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    Figure EP2024051269_02082024_PF_FP
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Abstract

The invention relates to a cartridge for an aerosol-generating device. The cartridge comprises an inner airflow channel extending between a proximal end and a distal end of the cartridge, a storage portion for storing an aerosol-forming substrate, a fluid permeable wall portion configured for allowing a fluid communication between the storage portion and the inner airflow channel, and a heating assembly arranged within the inner airflow channel. The heating assembly comprises an airflow passage in fluid communication with the inner airflow channel. The heating assembly comprises a susceptor member and a proximal sealing element provided proximal to the susceptor member. The heating assembly is slidably movable along the inner airflow channel between a sealing position and an operating position, wherein, in the sealing position, the fluid permeable wall portion is separated from the susceptor member, and wherein, in the operating position, the fluid permeable wall portion is in fluid communication with the susceptor member. The invention further relates to an aerosol-generating device. The invention further relates to an aerosol-generating system.
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