Abstract: Disclosed is an article for use with apparatus for heating smokable material to volatilize at least one component of the smokable material. The article includes smokable material, and a film defining a closed circuit (10a-10f) of heating material. The heating material is heatable by penetration with a varying magnetic field to heat the smokable material. Also disclosed is apparatus for heating smokable material to volatilize at least one component of the smokable material. The apparatus includes a magnetic field generator for generating a varying magnetic field for use in heating the smokable material. The magnetic field generator includes a film defining a coil of electrically conductive material, and a device for passing a varying electrical current through the coil.

Abstract: The present disclosure provides a method of preparing whitened tobacco composition including chemically pulping a tobacco material to form a tobacco pulp, extracting the tobacco pulp with an extraction solution, treating the tobacco pulp with a solution comprising an oxidizing agent for a time and at a temperature sufficient to lighten the color of the tobacco pulp to give a whitened tobacco pulp, and drying the whitened tobacco pulp to provide the whitened tobacco composition. Alternative bleaching processes and treatment methods effective for preparing whitened tobacco compositions are also provided herein.

Abstract: Described is an aerosol provision device for generating aerosol from a plurality of aerosol generating areas each configured to receive an aerosol precursor material, wherein the aerosol provision device includes a power source for providing power to a first atomizing element configured to generate aerosol from a first aerosol precursor material present in the first aerosol generating area and to a second atomizing element configured to generate aerosol from a second aerosol precursor material present in a second aerosol generating area; and power distribution circuitry configured to distribute power between the first and second atomizing elements based on at least one parameter of aerosol precursor material currently present in the first and second aerosol generating areas respectively.

Abstract: A method for obtaining a heating element for an electronic vapor provision system, the method including providing a sheet of electrically conductive porous material, directing light onto at least a portion of the sheet, detecting an amount of the light transmitted through the portion of the sheet, comparing the amount of light detected to a range of light transmission values known to correspond to a predetermined range of electrical resistance values required for the portion, and selecting the portion of the sheet for use as a heating element if the amount of detected light lies within the range of light transmission values, and otherwise rejecting the portion of the sheet.

Abstract: The disclosure provides products configured for oral use, the products including compositions comprising a filler component including negatively charged groups and an active ingredient including positively charged groups. The active ingredient can be retained by the filler component at least in part through bonding between the negatively charged groups and the positively charged groups such that active ingredient may be release from the product when positioned within an oral cavity of a consumer.

Abstract: Circuitry for a plurality of induction elements for an aerosol generating device is disclosed. Each of the plurality of induction elements is for inductive heating of one or more susceptors for heating aerosol generating material in use. The circuitry includes a plurality of driver arrangements, each one of the plurality of driver arrangements being arranged to provide, from an input direct current, an alternating current to a respective one of the plurality of induction elements in use. Each driver arrangement includes one or more first transistors each controllable by a switching potential to substantially allow current to pass therethrough in use. The circuitry also includes a converter arranged to step up an input potential to provide the switching potential in use, the converter being common to each of the plurality of driver arrangements.

Abstract: A vapor provision system includes a reservoir defining a storage volume to hold aerosolizable substrate material; and an aerosolizable substrate material detection system including an optical source located externally of the reservoir and operable to emit light into the storage volume; an optical detector located externally of the reservoir and operable to detect light emitted by the optical source that has traversed an optical path through the storage volume; and a controller configured to determine a characteristic of light detected by the optical detector and deduce information regarding a depth of aerosolizable substrate material in the storage volume from the determined characteristic of the light.

Abstract: An aerosol forming component for volatilizing a liquid in an aerosol delivery device is disclosed. The aerosol forming component includes a first aerosol-forming member configured to be heated up to a first operating temperature and thereafter to a second higher operating temperature, and a second aerosol-forming member configured to be heated up to at least the first operating temperature as the first aerosol-forming member reaches the second higher operating temperature so that liquid volatilized from the two aerosol-forming members mix with one another.

Abstract: Embodiments described herein include a ground tobacco composition, wherein at least 90% by weight of the tobacco in the composition has a particle size in the range of about 200 ?m to about 5 mm.

Abstract: Disclosed is a method and apparatus for use with an RLC resonance circuit for inductive heating of a susceptor of an aerosol generating device. The apparatus is arranged to determine a resonant frequency of the RLC resonance circuit; and determine, based on the determined resonant frequency, a first frequency for the RLC resonance circuit for causing the susceptor to be inductively heated, the first frequency being above or below the determined resonant frequency. The apparatus may be arranged to control a drive frequency of the RLC resonance circuit to be at the determined first frequency in order to heat the susceptor. Also disclosed is an aerosol generating device including the apparatus.

Abstract: An aerosol delivery device including: control circuitry for controlling an operating mode of the device; a motion sensor arranged to detect motion of the device and to output corresponding motion detection signals to the control circuitry; and an airflow sensor arranged to detect a flow of air in the device and to output corresponding airflow detection signals to the control circuitry; wherein the control circuitry is configured to determine from the motion detection signals when there is a tapping event corresponding to the device being tapped by a user and to determine from the airflow detection signals when there is an airflow event, and wherein the control circuitry is configured to control the device to switch from a first operating mode to a second operating mode in response to the detection of a predefined sequence of events comprising at least one tapping event and at least one airflow event.

Abstract: A sub-assembly for an electronic vapor provision system includes a source of liquid for vaporization; and a vaporizer for vaporizing a portion of the liquid for inhalation by a user, the vaporizer including a wick component; and an electrical heating element embedded in the wick component. The wick component includes a sheet of a porous electrically-insulating material and is arranged to wick liquid from the source of liquid to a surface of the wick component adjacent to the embedded electrical heating element for vaporization.