Airflow Management For Vaporizer Device
Patent No. EP4094794 (titled "Airflow Management For Vaporizer Device") was filed by Juul Labs on Jul 23, 2019. The application was issued on Nov 26, 2025.
Patent Summary
A vaporizer cartridge comprises a reservoir chamber for liquid vaporizable material and a wick housing in fluid communication therewith. The wick housing contains a vaporization chamber and a wicking element that draws material from the reservoir for heating. An airflow passageway extends through the vaporization chamber, and a vent passageway extends between the reservoir chamber and the airflow passageway. The vent passageway is configured such that the liquid's surface tension prevents material passage when reservoir pressure approximately equals the pressure along the airflow passageway. Conversely, when reservoir pressure is lower than the airflow passageway pressure, the surface tension is disrupted, allowing air to pass through the vent passageway into the reservoir chamber to manage internal pressure and facilitate wicking.
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Dossier Documents
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Date
Description
EP4094794
- Application Number
- EP22185732A
- Filing Date
- Jul 23, 2019
- Status
- Granted And Under Opposition
- Oct 24, 2025
- Publication Date
- Nov 26, 2025
- External Links
- Slate, Register , Google Patents