US 12,268,809 B2
Aerosol generating device having an internal heater
Flavien Dubief, Neuchatel (CH); Olivier Cochand, Dombresson (CH); Michel Thorens, Moudon (CH); Jean-Marc Flick, Pomy (CH); and Yvan Degoumois, Colombier (CH)
Assigned to Philip Morris Products S.A., Neuchatel (CH)
Filed by Philip Morris Products S.A., Neuchatel (CH)
Filed on Mar. 27, 2023, as Appl. No. 18/190,769.
Application 18/190,769 is a continuation of application No. 16/952,415, filed on Nov. 19, 2020, granted, now 11,638,793.
Application 16/952,415 is a continuation of application No. 16/171,014, filed on Oct. 25, 2018, granted, now 10,881,149, issued on Jan. 5, 2021.
Application 16/171,014 is a continuation of application No. 14/363,531, granted, now 10,143,233, issued on Dec. 4, 2018, previously published as PCT/EP2012/074510, filed on Dec. 5, 2012.
Claims priority of application No. 11192696 (EP), filed on Dec. 8, 2011.
Prior Publication US 2023/0226289 A1, Jul. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 15/06 (2006.01); A24F 40/42 (2020.01); A24F 40/46 (2020.01); A61M 11/04 (2006.01); A24F 40/10 (2020.01); A61M 16/00 (2006.01)
CPC A61M 15/06 (2013.01) [A24F 40/42 (2020.01); A24F 40/46 (2020.01); A61M 11/041 (2013.01); A61M 11/042 (2014.02); A24F 40/10 (2020.01); A61M 2016/0015 (2013.01); A61M 2205/8206 (2013.01); A61M 2205/8268 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An aerosol-generating device, comprising:
a storage portion configured to store an aerosol-forming substrate, the storage portion having an outer housing and an internal passageway, the storage portion forming a reservoir for the aerosol-forming substrate between the outer housing and the internal passageway;
a vaporizer configured to heat the aerosol-forming substrate to form an aerosol, the vaporizer at least partially inside the internal passageway in the storage portion; and
a porous interface at least partially lining the internal passageway and being configured to convey the aerosol-forming substrate from the storage portion towards the vaporizer,
wherein the aerosol-generating device is electrically operated and the vaporizer of the aerosol-generating device comprises an electric heater configured to heat the aerosol-forming substrate, wherein the electric heater comprises:
a first cylindrical electrical connection portion,
a second cylindrical electrical connection portion, and
a cylindrical heating filament between the first and the second electrical connection portions,
wherein the first and the second electrical connection portions are in the form of hollow tubes,
wherein the cylindrical shape of the first and the second electrical connection portions and the heating filament define a cylindrical bore,
wherein an air flow route is defined through the cylindrical bore, and
wherein the first electrical connection portion is located at a first end of the internal passageway, the second electrical connection portion is located at a second end of the internal passageway, and the heating filament has a first end joined to the first electrical connection portion and a second end joined to the second electrical connection portion.