(19)
(11) EP 4 527 221 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.05.2025 Bulletin 2025/21

(43) Date of publication A2:
26.03.2025 Bulletin 2025/13

(21) Application number: 25157235.0

(22) Date of filing: 21.09.2020
(51) International Patent Classification (IPC): 
A24F 40/485(2020.01)
A24F 40/46(2020.01)
 A24F 40/10(2020.01)
(52) Cooperative Patent Classification (CPC):
A24F 40/485; A24F 40/10; A24F 40/46
(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: 20.09.2019 EP 19198722
20.09.2019 EP 19198560

(62) Application number of the earlier application in accordance with Art. 76 EPC:
20789856.0 / 3930518

(71) Applicant: Imperial Tobacco Limited
Bristol BS3 2LL (GB)

(72) Inventors:
  • ILLIDGE, Benjamin
    BS3 2LL Bristol (GB)
  • ASTBURY, Benjamin
    BS3 2LL Bristol (GB)
  • AGGARWAL, Nikhil
    BS3 2LL Bristol (GB)
  • LU, Huanghai
    BS3 2LL Bristol (GB)
  • MCKEON, John
    BS3 2LL Bristol (GB)

(74) Representative: Mewburn Ellis LLP 
Aurora Building Counterslip
Bristol BS1 6BX
Bristol BS1 6BX (GB)

   


(54) SMOKING SUBSTITUTE APPARATUS


(57) A smoking substitute apparatus is disclosed, having: an air inlet; an outlet; and a flow passage formed between the air inlet and the outlet. A vaporisation chamber is in communication with the flow passage, the vaporisation chamber having an aerosol generator configured to generate an aerosol from an aerosol precursor by heating. The aerosol generator comprises a vaporiser element loaded with aerosol precursor, the vaporiser element being heatable by a heater and presenting a vaporiser element surface to air in the vaporisation chamber. A vaporiser element region is defined as a volume extending outwardly from the vaporiser element surface to a distance of 1 mm from the vaporiser element surface. The air inlet, flow passage, outlet and the vaporisation chamber are configured so that, when the air flow rate inhaled by the user through the apparatus is 1.3 L min-1, the maximum magnitude of velocity of air in the vaporiser element region is in the range 0-2.0 ms-1.







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