Abstract: A reclosable cartridge assembly (10) for use in an aerosol-generating system comprises: a cartridge (12) extending longitudinally between end walls (22, 26); a housing (30, 32) enclosing the cartridge (12) and comprising: an upstream portion with an end wall (22) comprising an opening (42); and a downstream housing portion (32) with an end wall comprising an opening (44). One of the housing portions (30, 32) is rotatably fitted onto the cartridge (12). One of the cartridge end walls (22, 26) comprises a rupturable portion (38, 40) separable from the remainder of the end wall to expose an opening (42, 44) in the end wall. The rotatable housing portion (30, 32) is adapted to engage the rupturable portion (38, 40) such that, upon rotation from a storage position to a dispensing position, the housing portion (30, 32) breaks off the rupturable portion (38, 40) and exposes the opening (42, 44) in the end wall.

Abstract: There is provided a cartridge assembly (10) for use in an aerosol-generating system, the cartridge assembly comprising: a cartridge (12) comprising at least a first compartment (18) extending along a longitudinal axis, the first compartment comprising an aerosol-generating compound and being sealed at a first end by a first frangible barrier (22) extending in respective planes transverse to the longitudinal axis; and at least a first piercing member (38) configured to rupture the first frangible barrier (22). The first piercing member (38) comprises: a first piercing body (40) having a cross-sectional surface area at least about 40 percent of a cross-sectional area of the at least one compartment (19); and a first channel (381, 382) extending parallel to the longitudinal axis of the cartridge through the first piercing body (40), the first channel (381, 382) having an inlet and an outlet.

Abstract: A cartridge for an aerosol-generating system includes a storage container containing a supply of an aerosol-forming substrate, a fluid permeable heating element positioned across an opening in the storage container, a protective cover coupled to the storage container and covering the fluid permeable heating element, at least one air inlet, at least one air outlet, and an airflow path from the at least one air inlet to the at least one air outlet. The protective cover is configured such that a portion of the airflow path is between the protective cover and the fluid permeable heating element.

Abstract: The method includes first defining at least one channel within a first housing of a heater assembly, the at least one channel extending from a first end to a second end of the first housing, second defining a cavity in the first end of the first housing, third defining a first reservoir in the second end of the first housing, the at least one channel being in fluid communication with the first reservoir, and fourth defining an opening within a first wall within the first housing, the opening causing the first reservoir and the cavity to be in communication with each other.

Abstract: The cartridge includes a storage compartment configured to contain a liquid, the storage compartment having a first portion and a second portion connected to one another by a liquid channel. The cartridge includes an airflow passage passing between the first portion and the second portion of the storage compartment, and an aerosol-generating element that is fluid permeable and is positioned between the first portion and the second portion of the storage compartment, the aerosol-generating element having a first side and a second side that oppose each other, the first side of the aerosol-generating element forming part of the airflow passage and the second side of the aerosol-generating element being in contact with the liquid from the second portion of the storage compartment.

Abstract: The method includes first defining a reservoir within at least one first housing, the reservoir having a first part and a second part and being configured to contain a pre-vapor formulation, second defining at least one channel that is configured to communicate the pre-vapor formulation from the first part to the second part, third defining an airflow path within the at least one first housing, and first configuring a heater that is fluid permeable to heat and at least partially vaporize the pre-vapor formulation, the heater being on an end of the second part, the heater having a first surface that faces the first part, a first portion of the first surface being in direct communication with a second portion of the airflow path.

Abstract: A cartridge assembly for an aerosol-generating system including a housing having an air outlet and an air inlet upstream of the housing air outlet; and a cartridge disposed within the housing. The cartridge includes a fluid-permeable heating element within a cartridge body; a cartridge air inlet; a cartridge air outlet; and an airflow path extending from the cartridge air inlet to the cartridge air outlet, via the fluid-permeable heating element. At least a portion of the cartridge may move between a first position, in which air from the housing air inlet is blocked from flowing to the housing air outlet, via the cartridge air inlet, the fluid-permeable heating element, and the cartridge air outlet; and a second position, in which an unrestricted airflow path exists from the housing air inlet to the housing air outlet, via the cartridge air inlet, the fluid-permeable heating element, and the cartridge air outlet.

Abstract: The cartridge for the aerosol-generating system includes a housing defining an air inlet and an air outlet and an airflow path defined within the housing. The cartridge includes an atomizer assembly with an aerosol-generating element that is fluid permeable, and two electrical contact portions connected to the aerosol-generating element. The aerosol-generating element has a first side and a second side opposite the first side, wherein the first side of the aerosol-generating element is exposed to the airflow path and the second side of the aerosol-generating element is in contact with a liquid. The cartridge includes the mount that contains the atomizer assembly, where the mount covers a first portion of the first side of the aerosol-generating element to isolate the electrical contact portions from the airflow path, and covers at least a portion of the second side of the aerosol-generating element to isolate the electrical contact portions from the liquid.

Abstract: A cartridge for an aerosol-generating system includes a storage container containing a supply of an aerosol-forming substrate, a fluid permeable heating element positioned across an opening in the storage container, a protective cover coupled to the storage container and covering the fluid permeable heating element, at least one air inlet, at least one air outlet, and an airflow path from the at least one air inlet to the at least one air outlet. The protective cover is configured such that a portion of the airflow path is between the protective cover and the fluid permeable heating element.

Abstract: The cartridge for the aerosol-generating system includes a housing defining an air inlet and an air outlet and an airflow path defined within the housing. The cartridge includes an atomizer assembly with an aerosol-generating element that is fluid permeable, and two electrical contact portions connected to the aerosol-generating element. The aerosol-generating element has a first side and a second side opposite the first side, wherein the first side of the aerosol-generating element is exposed to the airflow path and the second side of the aerosol-generating element is in contact with a liquid. The cartridge includes the mount that contains the atomizer assembly, where the mount covers a first portion of the first side of the aerosol-generating element to isolate the electrical contact portions from the airflow path, and covers at least a portion of the second side of the aerosol-generating element to isolate the electrical contact portions from the liquid.

Abstract: A nicotine composition is provided, including a non-aqueous solvent; at least 0.2 percent by weight of nicotine based on the weight of the nicotine composition; a first ratio by weight of (?-ionone+?-damascenone) to (phenol) of greater than 0.25; and a second ratio by weight of (furaneol+(2,3-diethyl-5-methylpyrazine)*100)) to (nicotine) of greater than 5×10?4. A cartridge including the nicotine composition, and a method of preparing the nicotine composition, are also provided.

Abstract: A method of producing a liquid tobacco extract is provided, the method including the steps of: preparing a tobacco starting material including natural tobacco material such that during the step of preparing the tobacco starting material, the tobacco is not subjected to any treatment adapted to alter the pH of the tobacco; heating the tobacco starting material in a flow of inert gas at an extraction temperature of between 125 degrees Celsius and 160 degrees Celsius for between 90 minutes and 270 minutes; collecting volatile compounds released from the natural tobacco starting material during the heating step; and forming a liquid tobacco extract comprising the collected volatile compounds.

Abstract: A method of manufacturing a concentrated tobacco extract for an aerosol-generating article is provided, including: providing a natural tobacco material; heating the material to a temperature and for a time such that volatile species including nicotine are released from the material, the heating includes heating the material in a flow of inert gas or in a flow of a combination of an inert gas with water or steam or heating the material under vacuum; collecting the released volatile species and forming a liquid, naturally derived tobacco extract including the collected species, a polyhydric alcohol, and at least about 40 percent by weight of water; and heating the liquid extract to evaporate at least some of the water and obtain concentrated tobacco extract, by heating to a temperature and for a time such that a water content in the naturally derived tobacco extract is reduced by at least about 60 percent.

Abstract: A cartridge assembly for an aerosol-generating system is provided, including a cartridge having upstream and downstream ends, a first compartment having a first air inlet and a first air outlet, and a second compartment having a second air inlet and a second air outlet; a cartridge holder, a portion of the cartridge being received within the cartridge holder; a mouthpiece having upstream and downstream ends, at least a portion of the cartridge holder is received within the mouthpiece, the downstream end of the cartridge is spaced apart from the downstream end of the mouthpiece and defines a mixing chamber therebetween, and another portion of the cartridge holder is spaced apart from the mouthpiece and defines an airflow channel between the cartridge holder and the mouthpiece; and a ventilation air aperture providing fluid communication between a downstream portion of the airflow channel and the mixing chamber.

Abstract: A liquid tobacco extract is provided, including: a non-aqueous solvent; at least 0.2 percent by weight of nicotine based on a weight of the liquid tobacco extract; and a ratio by weight of (?-ionone+?-damascenone) to (phenol) of greater than 0.25.

Abstract: A method of producing a blended liquid tobacco extract, including: preparing a first tobacco starting material having a first reducing sugar content and a first nicotine content; preparing a second tobacco starting material having a second reducing sugar content and a second nicotine content, the first and the second starting materials being different from each other and have not been subjected to a prior extraction; heating the first tobacco starting material at a first extraction temperature; heating the second tobacco starting material at a second extraction temperature lower than the first extraction temperature; collecting volatile compounds released from the first and the second starting materials during heating; and combining the collected volatile compounds released from the first and the second starting materials and forming the blended liquid tobacco extract from the combined volatile compounds.

Abstract: There is provided an aerosol-generating system including a cartridge including: a first compartment containing a nicotine source, the first compartment having a first air inlet and a first air outlet; and a second compartment containing an acid source, the second compartment having a second air inlet and a second air outlet; and a mouthpiece configured to engage with the cartridge to define a chamber in fluid communication with the first air outlet and the second air outlet, the mouthpiece comprising a third air inlet in fluid communication with the chamber and a third air outlet in fluid communication with the chamber, the third air inlet defining a flow area, and the mouthpiece being configured so that the flow area through the third air inlet is variable.

Abstract: A cartridge for an aerosol-generating system is provided, including a cartridge main body including a cartridge air outlet; a storage container within the body and containing a supply of liquid aerosol-forming substrate; a heating element disposed at a first end of the body and in fluid communication with the container; and a cartridge cap including a cartridge air inlet, a top portion to cover the first end of the body and the heating element, and a side portion extending from the top portion and over a part of a side portion of the body and including an engagement portion to releaseably engage with a corresponding portion of the body, and, when the engagement portion is disengaged from the body, the cartridge cap is configured to move relative to the body between a first position, which blocks air from flowing, and a second position, in which an airflow path exists.

Abstract: There is provided a cartridge for an aerosol-generating system, the cartridge including: a first compartment having a first air inlet and a first air outlet, the first compartment containing a nicotine source including a first carrier material impregnated with between about 1 milligram and about 40 milligrams of nicotine; and a second compartment having a second air inlet and a second air outlet, the second compartment containing a lactic acid source including a second carrier material impregnated with between about 2 milligrams and about 60 milligrams of lactic acid. An aerosol-generating system is also provided, including the cartridge and an aerosol-generating device including a housing defining a cavity configured to receive at least a portion of the cartridge; and a heater configured to heat the first compartment and the second compartment of the cartridge.

Abstract: An aerosol-generating device is provided, including an air inlet; an air outlet; an air flow passage extending between the air inlet and the air outlet; a heating element configured to heat an aerosol-forming substrate; a sensor assembly in communication with the air flow passage; and a controller coupled to the sensor assembly and configured to control a supply of power to the heating element, to measure one or both of a flow rate and a pressure level within the air flow passage, an amount of power supplied to the heating element being dependent on at least one of a flow rate and a pressure level measured by the sensor assembly, a length of time between a start of a given puff and an end of the puff immediately preceding the given puff, and a puff number of the given puff.