US 12,219,997 B2
Inductively heating aerosol-generating device comprising a susceptor assembly
Ihar Nikolaevich Zinovik, Neuchatel (CH); and Irene Taurino, Neuchatel (CH)
Assigned to Philip Morris Products S.A., Neuchatel (CH)
Appl. No. 17/278,826
Filed by Philip Morris Products S.A., Neuchatel (CH)
PCT Filed Sep. 24, 2019, PCT No. PCT/EP2019/075629
§ 371(c)(1), (2) Date Mar. 23, 2021,
PCT Pub. No. WO2020/064683, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 18196673 (EP), filed on Sep. 25, 2018.
Prior Publication US 2022/0030948 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A24F 40/465 (2020.01); H05B 6/10 (2006.01)
CPC A24F 40/465 (2020.01) [H05B 6/108 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An inductively heating aerosol-generating device configured to generate an aerosol by heating an aerosol-forming substrate, the device comprising:
a receiving cavity configured to receive the aerosol-forming substrate;
an induction source configured to generate an alternating electromagnetic field; and
a susceptor assembly configured and arranged to inductively heat the aerosol-forming substrate within the receiving cavity under influence of the alternating magnetic field generated by the induction source, the susceptor assembly comprising a first susceptor and a second susceptor,
wherein the first susceptor comprises a first susceptor material having a positive temperature coefficient of resistance, and
wherein the second susceptor comprises a second ferromagnetic or ferrimagnetic susceptor material having a negative temperature coefficient of resistance.