US 11,937,643 B2
Inductive heating circuit for volatilizing smokeable material
Duane Kaufman, London (GB); and Thomas P. Blandino, London (GB)
Assigned to NICOVENTURES TRADING LIMITED, London (GB)
Filed by NICOVENTURES TRADING LIMITED, London (GB)
Filed on Sep. 8, 2022, as Appl. No. 17/930,451.
Application 17/930,451 is a continuation of application No. 16/343,255, granted, now 11,470,883, previously published as PCT/EP2017/076771, filed on Oct. 19, 2017.
Claims priority of provisional application 62/410,056, filed on Oct. 19, 2016.
Prior Publication US 2023/0141743 A1, May 11, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A24F 13/00 (2006.01); A24B 15/167 (2020.01); A24F 40/465 (2020.01); A24F 40/50 (2020.01); H05B 6/10 (2006.01); H05B 6/36 (2006.01); H05B 6/44 (2006.01); A24F 40/20 (2020.01)
CPC A24F 40/465 (2020.01) [A24B 15/167 (2016.11); A24F 40/50 (2020.01); H05B 6/108 (2013.01); H05B 6/365 (2013.01); H05B 6/44 (2013.01); A24F 40/20 (2020.01)] 13 Claims
OG exemplary drawing
 
1. A control circuit for use with a device for heating smokable material to volatilize at least one component of said smokable material, the control circuit comprising:
at least a first inductor coil and a second inductor coil, the first inductor coil for generating a first varying magnetic field for heating a first section of a susceptor arrangement and the second inductor coil for generating a second varying magnetic field for heating a second section of the susceptor arrangement,
wherein:
the control circuit is for controlling the first inductor coil and the second inductor coil, wherein, the control circuit is configured so that when one of the first and second coils is actively being driven to generate a varying magnetic field the other of the first and second inductor coils is inactive and wherein the control circuit is configured so that the inactive one of the first and second inductor coils is prevented from carrying a current induced by the active one of the first and second inductor coils sufficient to cause significant heating of a susceptor arrangement.