US 12,453,380 B2
Aerosol-generating device for use with an aerosol-generating article comprising means for article identification
Oleg Mironov, Neuchatel (CH); Jerome Christian Courbat, Neuchatel (CH); and Enrico Stura, Neuchatel (CH)
Assigned to Philip Morris Products S.A., Neuchatel (CH)
Appl. No. 17/268,180
Filed by Philip Morris Products S.A., Neuchatel (CH)
PCT Filed Aug. 16, 2019, PCT No. PCT/EP2019/071994
§ 371(c)(1), (2) Date Feb. 12, 2021,
PCT Pub. No. WO2020/035586, PCT Pub. Date Feb. 20, 2020.
Claims priority of application No. 18189545 (EP), filed on Aug. 17, 2018.
Prior Publication US 2021/0315279 A1, Oct. 14, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A24F 40/46 (2020.01); A24D 1/02 (2006.01); A24D 1/20 (2020.01); A24F 40/20 (2020.01); A24F 40/51 (2020.01); A24F 40/53 (2020.01); A24F 40/57 (2020.01)
CPC A24F 40/53 (2020.01) [A24D 1/02 (2013.01); A24D 1/20 (2020.01); A24F 40/20 (2020.01); A24F 40/46 (2020.01); A24F 40/51 (2020.01); A24F 40/57 (2020.01)] 11 Claims
OG exemplary drawing
 
1. An electrically heatable aerosol-generating device for an aerosol-generating article, the device comprising:
a device housing including a receiving cavity within a proximal portion of the device configured to receive at least a portion of the aerosol-generating article;
wherein the receiving cavity comprises a distal end portion and a proximal end portion opposite to the distal end portion, wherein the distal end portion comprises a bottom portion, and wherein the proximal end portion of the receiving cavity comprises an open end at a proximal end of the proximal portion of the device allowing the aerosol-generating article to be inserted into the receiving cavity,
a separating wall disposed closer to the bottom portion of the receiving cavity than to the open end of the receiving cavity, sealingly separating the receiving cavity within the proximal portion of the device from a distal portion of the device;
at least one electrical heating device configured to heat an aerosol-forming substrate within the aerosol-generating article when the article is received in the receiving cavity; and
sensing circuitry comprising a field generator disposed closer to the bottom portion of the receiving cavity than to the open end of the receiving cavity within the separating wall or circumferentially around a perimeter or outer circumference of the separating wall,
the sensing circuitry being configured to measure a change of at least one property of the field generator caused by a presence of an indicator arranged at or within the aerosol-generating article when the article is received in the receiving cavity,
wherein the field generator is an induction coil,
wherein the induction coil is arranged to not be wound around the receiving cavity, and
wherein the induction coil is integrated within the separating wall or disposed within a circumferential recess of the separating wall.