US 12,239,160 B2
Device for heating aerosol-forming substrate with air preheat
Roland Antonopoulos, Neuchâtel (CH); Teemu Maattanen, Bern (CH); and Giovanna Landi, Mur (CH)
Assigned to Philip Morris Products S.A., Neuchâtel (CH)
Appl. No. 17/789,816
Filed by PHILIP MORRIS PRODUCTS S.A., Neuchâtel (CH)
PCT Filed Dec. 10, 2020, PCT No. PCT/IB2020/061770
§ 371(c)(1), (2) Date Jun. 29, 2022,
PCT Pub. No. WO2021/137067, PCT Pub. Date Jul. 8, 2021.
Claims priority of application No. 19220070 (EP), filed on Dec. 30, 2019.
Prior Publication US 2023/0043438 A1, Feb. 9, 2023
Int. Cl. A24F 1/30 (2006.01); A24B 15/167 (2020.01); A24F 40/10 (2020.01); A24F 40/42 (2020.01); A24F 40/46 (2020.01); A24F 40/485 (2020.01)
CPC A24F 1/30 (2013.01) 15 Claims
OG exemplary drawing
 
1. A shisha device comprising:
a vessel comprising an interior volume configured to contain a liquid, the vessel comprising a vessel inlet and a headspace outlet;
a receptacle configured to receive an aerosol-forming substrate or to receive a cartridge comprising the aerosol-forming substrate;
a heating element configured to heat the aerosol-forming substrate when the aerosol-forming substrate or the cartridge comprising the aerosol-forming substrate is received in the receptacle;
a receptacle inlet in communication with, and upstream of, the receptacle;
a receptacle outlet in communication with, and downstream of, the receptacle;
a conduit in communication with the receptacle outlet and extending into the vessel via the vessel inlet; and
an air inlet channel in communication with an ambient environment and the receptacle inlet, wherein the air inlet channel extends along an outer surface of the conduit.