Patent No. EP3855957 (titled "Aerosol Delivery Device") was filed by Imperial Tobacco on Sep 23, 2019. The application was issued on Jun 11, 2025.
An aerosol delivery device comprises a member formed of a porous material, featuring a support portion and an aerosol generator portion located at the member's downstream end. The aerosol generator portion is configured to receive a first aerosol precursor. An air flow passage directs air past the aerosol generator portion to pick up the first aerosol precursor, forming a first aerosol. The device and the porous member incorporate mutually engaging features that interlock to maintain the member within the device. Optionally, the device includes a storage (e.g., a tank) for the first aerosol precursor, with the member transferring the precursor to the generator. The device may further include a second aerosol generator producing a pulmonary-penetrating second aerosol from a second aerosol precursor.

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