US 12,329,196 B2
Shisha system with a heating unit comprising two electrodes
Robert Emmett, Neuchatel (CH); and Ana Isabel Gonzalez Florez, St-Sulpice (CH)
Assigned to Philip Morris Products S.A., Neuchatel (CH)
Appl. No. 17/769,465
Filed by PHILIP MORRIS PRODUCTS S.A., Neuchatel (CH)
PCT Filed Sep. 29, 2020, PCT No. PCT/EP2020/077264
§ 371(c)(1), (2) Date Apr. 15, 2022,
PCT Pub. No. WO2021/073867, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 19204201 (EP), filed on Oct. 18, 2019.
Prior Publication US 2023/0087176 A1, Mar. 23, 2023
Int. Cl. A24F 40/46 (2020.01); A24D 1/20 (2020.01); A24F 1/30 (2006.01); A24F 40/20 (2020.01); H05B 6/54 (2006.01); H05B 6/62 (2006.01)
CPC A24F 1/30 (2013.01) [A24D 1/20 (2020.01); A24F 40/20 (2020.01); A24F 40/46 (2020.01); H05B 6/54 (2013.01); H05B 6/62 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A shisha system comprising:
an aerosol-generating article comprising an aerosol-forming substrate;
a first electrode and a second electrode; and
a shisha device comprising:
a liquid cavity configured to contain a volume of liquid, the liquid cavity having a head space outlet;
an article cavity configured to receive the aerosol-forming article, the article cavity being in fluid communication with the liquid cavity; and
an oscillation circuit configured for connection to the first electrode and the second electrode,
wherein the oscillation circuit is configured to supply a radio frequency (RF) alternating voltage to the first electrode and the second electrode, the RF voltage between the first electrode and the second electrode generating an alternating radio frequency (RF) electromagnetic field between the first electrode and the second electrode for heating the aerosol-forming substrate when the aerosol-generating article is received in the article cavity.