(19)
(11) EP 4 520 204 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.06.2025 Bulletin 2025/25

(43) Date of publication A2:
12.03.2025 Bulletin 2025/11

(21) Application number: 25152553.1

(22) Date of filing: 18.03.2022
(51) International Patent Classification (IPC): 
A24F 40/40(2020.01)
 A24F 40/485(2020.01)
(52) Cooperative Patent Classification (CPC):
A24F 40/485; A24F 40/20; A24F 40/40
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 19.03.2021 EP 21163745

(62) Application number of the earlier application in accordance with Art. 76 EPC:
22716389.6 / 4307941

(71) Applicant: Philip Morris Products S.A.
2000 Neuchâtel (CH)

(72) Inventors:
  • MÄÄTTÄNEN, Teemu Henrik
    2000 Quai Jeanrenaud 3 (CH)
  • AW, Sze Chiek
    569873 Singapore (SG)
  • CHONG, Khai Shin
    569873 Singapore (SG)
  • EOW, Yeong Taur
    569873 Singapore (SG)

(74) Representative: Grünecker Patent- und Rechtsanwälte PartG mbB 
Leopoldstraße 4
80802 München
80802 München (DE)

   


(54) AEROSOL-GENERATING DEVICE WITH VENTING MEANS


(57) The present invention relates to an aerosol-generating system, comprising an aerosol-generating article comprising an aerosol-generating substrate, and an aerosol-generating device (1), comprising a heating chamber (4) adapted to receive an aerosol-generating article, a heating element (5), a sealed housing compartment (8), a venting means (10) adapted to allow gas flow from the sealed housing compartment (8) to the outside of the aerosol-generating device (1) to compensate for heat expansion of gas inside the housing compartment (8) due to heating operation of the heating element (5). The invention further relates to a method for operating an aerosol-generating system and a use of a venting membrane (10) in an aerosol-generating device (1).







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