Aerosol generating device with multiple heaters
AssigneeAltria Client Services LLC
InventorsRui Nuno Batista, Laurent Manca
Life of this patent
Estimating the term…
Abstract
An electrically heated aerosol-generating device includes a storage portion configured to contain an aerosol-forming substrate and having a fluid permeable internal surface surrounding an open-ended passage extending through the cartridge. The device includes a housing having a cavity for receiving the cartridge, and a heater assembly positioned in the cavity. The heater assembly includes an elongate support member connected to the housing and arranged to extend into the open-ended passage of a cartridge inserted in the cavity. The heater assembly also includes a plurality of electric heaters fixed to and spaced along the length of the elongate support member.
Claims17
An electrically heated aerosol-generating device for use with a cartridge comprising a storage portion containing an aerosol-forming substrate, the storage portion having a fluid permeable internal surface surrounding an open-ended passage extending through the cartridge, the device comprising:
- a housing having a cavity configured to receive at least a portion of a cartridge;
- a heater assembly in the cavity, the heater assembly including,
- an elongate support member connected to the housing and configured to extend into the open-ended passage of a cartridge inserted in the cavity, the elongate support member including a piercing surface having a sharp, angled tip at an end thereof;
- and
- a plurality of electric heaters fixed to and spaced along a length of the elongate support member, the plurality of electric heaters each having at least one heating element configured to heat the aerosol forming substrate of a cartridge received into the cavity;
- a power supply connected to the heater assembly;
- and
- electric circuitry connectable to the power supply and to the heater assembly, the electric circuitry configured to measure one or more electrical parameters of the plurality of electric heaters and configured to determine at least one of an estimated remaining amount of aerosol forming substrate in a cartridge and an estimated distribution of aerosol forming substrate in the cartridge, based on the measured electrical parameters.
A kit for an electrically heated aerosol-generating system, the kit comprising:
- at least one electrically heated aerosol-generating device including,
- a housing having a cavity configured to receive at least a portion of a cartridge;
- a heater assembly in the cavity, the heater assembly including,
- an elongate support member connected to the housing and configured to extend into an open-ended passage of a cartridge inserted in the cavity, the elongate support member including a piercing surface having a sharp, angled tip at an end thereof;
- and
- a plurality of electric heaters fixed to and spaced along a length of the elongate support member, the plurality of electric heaters each having at least one heating element configured to heat an aerosol forming substrate of a cartridge received into the cavity;
- a power supply connected to the heater assembly;
- and
- electric circuitry connectable to the power supply and to the heater assembly, the electric circuitry configured to measure one or more electrical parameters of the plurality of electric heaters and configured to determine at least one of an estimated remaining amount of aerosol forming substrate in a cartridge and an estimated distribution of aerosol forming substrate in the cartridge, based on the measured electrical parameters;
- and
- a plurality of consumable cartridges, each of the plurality of cartridges including, a storage portion having a fluid permeable internal surface surrounding an open-ended passage extending through the cartridge, the storage portion configured to contain a first aerosol forming substrate and a second aerosol forming substrate stored separately.
Dependencies are inferred from the claim text.