US 12,484,626 B2
Aerosol generating system with multiple susceptors
Jerome Christian Courbat, Cortaillod (CH); Oleg Mironov, Cudrefin (CH); Tony Reevell, London (GB); Andreas Michael Rossoll, Le Mont-sur-Lausanne (CH); and Enrico Stura, Palezieux-Village (CH)
Assigned to Philip Morris Products S.A., Neuchatel (CH)
Filed by Philip Morris Products S.A., Neuchatel (CH)
Filed on May 20, 2024, as Appl. No. 18/669,163.
Application 18/060,908 is a division of application No. 16/636,533, granted, now 11,793,239, issued on Oct. 24, 2023, previously published as PCT/EP2018/071692, filed on Aug. 9, 2018.
Application 18/669,163 is a continuation of application No. 18/060,908, filed on Dec. 1, 2022, granted, now 12,016,394.
Claims priority of application No. 17185595 (EP), filed on Aug. 9, 2017.
Prior Publication US 2024/0423278 A1, Dec. 26, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A24F 13/00 (2006.01); A24F 40/465 (2020.01); A24F 40/50 (2020.01); A24F 40/57 (2020.01); H05B 6/06 (2006.01); H05B 6/10 (2006.01); H05B 6/44 (2006.01); A24F 40/20 (2020.01)
CPC A24F 40/465 (2020.01) [A24F 40/50 (2020.01); A24F 40/57 (2020.01); H05B 6/06 (2013.01); H05B 6/108 (2013.01); H05B 6/44 (2013.01); A24F 40/20 (2020.01)] 15 Claims
OG exemplary drawing
 
1. An aerosol-generating system, comprising:
an aerosol-generating device, comprising
a housing comprising ventilation holes,
a heating chamber defining a heating zone and being sized to receive at least a portion of an aerosol-forming substrate within the heating zone,
an induction element disposed around, or adjacent to, the heating zone,
a power supply, and
a controller connected to the induction element and configured to provide an alternating electric current to the induction element to generate an alternating magnetic field within the heating zone,
wherein the induction element is configured to be controlled to sequentially provide a first alternating magnetic field having a first frequency for a first period of time followed by a second alternating magnetic field having a second frequency for a second period of time.