Abstract: An aerosol-generating device is provided, including: a storage portion to store an aerosol-forming substrate and having an outer housing and an internal passageway, the storage portion forming a reservoir for the substrate between the outer housing and the internal passageway; a vaporizer being at least partially inside the internal passageway; and a porous interface at least partially lining the internal passageway to convey the substrate from the storage portion towards the vaporizer, the device being electrically operated and the vaporizer including an electric heater to heat the substrate, the heater including first and second cylindrical electrical connection portions, and a cylindrical heating filament between the first and the second portions, the first and the second portions being in the form of hollow tubes, the cylindrical shape of the first and the second portions and the filament defining a cylindrical bore with an air flow route therethrough.

Abstract: An aerosol generating device is provided, including a storage portion to store an aerosol-forming substrate and having an outer housing and an internal passageway, the portion forming a reservoir for the substrate between the housing and the passageway; a vaporizer including an electric heater to heat the substrate to form an aerosol, the vaporizer at least partially inside the passageway; and a porous interface at least partially lining the passageway to convey the substrate towards the vaporizer, the device being electrically operated, the heater including first and second electrical connection portions, and a heating filament therebetween, a cylindrical shape of the connection portions and the filament define a cylindrical bore, an air flow route is defined through the bore, and the first connection portion being a first cylindrical electrical connection portion, the second connection portion being a second cylindrical electrical connection portion, and the filament being a cylindrical heating element.

Abstract: There is provided a method of manufacturing a heater assembly for an aerosol generating system, including providing a flexible wick; applying tension to the flexible wick; assembling a heating element around the flexible wick; and releasing the tension from the flexible wick.

Abstract: An aerosol generating device is provided, including a storage portion to store an aerosol-forming substrate and having an outer housing and an internal passageway, the portion forming a reservoir for the substrate between the housing and the passageway; a vaporizer including an electric heater to heat the substrate to form an aerosol, the vaporizer at least partially inside the passageway; and a porous interface at least partially lining the passageway to convey the substrate towards the vaporizer, the device being electrically operated, the heater including first and second electrical connection portions, and a heating filament therebetween, a cylindrical shape of the connection portions and the filament define a cylindrical bore, an air flow route is defined through the bore, and the first connection portion being a first cylindrical electrical connection portion, the second connection portion being a second cylindrical electrical connection portion, and the filament being a cylindrical heating element.

Abstract: There is provided an aerosol generating device for heating an aerosol-forming substrate, including a storage portion for storing the aerosol-forming substrate and a vaporizer for heating the aerosol-forming substrate to form an aerosol. The storage portion has 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, and the vaporizer extends at least partially inside the internal passageway in the storage portion. The device further includes a porous interface at least partially lining the internal passageway for conveying the aerosol-forming substrate from the storage portion towards the vaporizer.

Abstract: There is provided a method of manufacturing a heater assembly for an aerosol-generating system, including providing a flexible wick; coupling a rigid support element to the wick; assembling a heating element around the rigid support; and removing the rigid support. There is also provided a method of manufacturing a heater assembly for an aerosol-generating system, including providing a flexible wick; applying tension to the wick; assembling a heating element around the wick; and releasing the tension from the wick.

Abstract: There is provided a method of manufacturing a heater assembly for an aerosol generating system, including providing a flexible wick; applying tension to the flexible wick; assembling a heating element around the flexible wick; and releasing the tension from the flexible wick.

Abstract: There is provided an aerosol generating device for heating an aerosol-forming substrate, including a storage portion for storing the aerosol-forming substrate and a vaporizer for heating the aerosol-forming substrate to form an aerosol. The storage portion has 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, and the vaporizer extends at least partially inside the internal passageway in the storage portion. The device further includes a porous interface at least partially lining the internal passageway for conveying the aerosol-forming substrate from the storage portion towards the vaporizer.

Abstract: There is provided an aerosol generating device for heating an aerosol-forming substrate, including a storage portion for storing the aerosol-forming substrate and a vaporizer for heating the aerosol-forming substrate to form an aerosol. The storage portion has 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, and the vaporizer extends at least partially inside the internal passageway in the storage portion. The device further includes a porous interface at least partially lining the internal passageway for conveying the aerosol-forming substrate from the storage portion towards the vaporizer.

Abstract: There is provided an electrically operated aerosol generating system for receiving an aerosol-forming substrate. The system includes a liquid storage portion for storing liquid aerosol-forming substrate, an electric heater including at least one heating element for heating the liquid aerosol-forming substrate, and electric circuitry for determining depletion of liquid aerosol-forming substrate heated by the heater based on a relationship between a temperature of the heating element and power applied to the heating element. There is also provided a method in an electrically operated aerosol generating system including a liquid storage portion for storing liquid aerosol-forming substrate and an electric heater including at least one heating element for heating the liquid aerosol-forming substrate, the method including determining depletion of liquid aerosol-forming substrate heated by the heater based on a relationship between a temperature of the heating element and power applied to the heating element.

Abstract: A smoking article is provided, including a combustible heat source with opposed front and rear faces and at least one airflow channel extending from the front face to the rear face of the combustible heat source, and an aerosol-forming substrate including at least one aerosol former downstream of the combustible heat source, wherein a non-metallic, non-combustible, gas-resistant, first barrier coating is provided on substantially all of the rear face of the combustible heat source.

Abstract: An aerosol generating system includes an aerosol-forming article including an aerosol-forming substrate and a mouthpiece portion for allowing a user to draw air through the substrate; and an aerosol generating device, the device including a housing having proximal and distal ends and including at least one external surface and one internal surface, the internal surface defining an open ended cavity at the proximal end of the housing in which the substrate is received, the cavity having a longitudinal extent between its proximal and distal ends, a heater element within the cavity configured to heat the substrate received in the cavity, and an air inlet; the system including a first air flow channel extending from the air inlet to a distal end of the cavity, wherein the first channel extends between the heater and the external surface of the housing along at least a portion of the longitudinal extent of the cavity, and a second air flow channel extending from the distal end of the cavity to the mouthpiece porti

Abstract: There is provided a method of manufacturing a heater assembly for an aerosol-generating system, including providing a flexible wick; coupling a rigid support element to the wick; assembling a heating element around the rigid support; and removing the rigid support. There is also provided a method of manufacturing a heater assembly for an aerosol-generating system, including providing a flexible wick; applying tension to the wick; assembling a heating element around the wick; and releasing the tension from the wick.

Abstract: There is provided an aerosol generating device for heating an aerosol-forming substrate, including a storage portion for storing the aerosol-forming substrate and a vaporizer for heating the aerosol-forming substrate to form an aerosol. The storage portion has 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, and the vaporizer extends at least partially inside the internal passageway in the storage portion. The device further includes a porous interface at least partially lining the internal passageway for conveying the aerosol-forming substrate from the storage portion towards the vaporizer.

Abstract: An aerosol generating system includes an aerosol-forming article including an aerosol-forming substrate and a mouthpiece portion for allowing a user to draw air through the substrate; and an aerosol generating device, the device including a housing having proximal and distal ends and including at least one external surface and one internal surface, the internal surface defining an open ended cavity at the proximal end of the housing in which the substrate is received, the cavity having a longitudinal extent between its proximal and distal ends, a heater element within the cavity configured to heat the substrate received in the cavity, and an air inlet; the system including a first air flow channel extending from the air inlet to a distal end of the cavity, wherein the first channel extends between the heater and the external surface of the housing along at least a portion of the longitudinal extent of the cavity, and a second air flow channel extending from the distal end of the cavity to the mouthpiece porti

Abstract: A smoking article is provided, including a combustible heat source with opposed front and rear faces and at least one airflow channel extending from the front face to the rear face of the combustible heat source, and an aerosol-forming substrate including at least one aerosol former downstream of the combustible heat source, wherein a non-metallic, non-combustible, gas-resistant, first barrier coating is provided on substantially all of the rear face of the combustible heat source.

Abstract: There is provided an electrically operated aerosol generating system for receiving an aerosol-forming substrate. The system includes a liquid storage portion for storing liquid aerosol-forming substrate, an electric heater including at least one heating element for heating the liquid aerosol-forming substrate, and electric circuitry for determining depletion of liquid aerosol-forming substrate heated by the heater based on a relationship between a temperature of the heating element and power applied to the heating element. There is also provided a method in an electrically operated aerosol generating system including a liquid storage portion for storing liquid aerosol-forming substrate and an electric heater including at least one heating element for heating the liquid aerosol-forming substrate, the method including determining depletion of liquid aerosol-forming substrate heated by the heater based on a relationship between a temperature of the heating element and power applied to the heating element.