公开(公告)号：US20180301915A1

公开(公告)日：2018-10-18

申请号：US15956253

申请日：2018-04-18

Applicant: Altria Client Services LLC

Inventor： Guillaume COLOTTE ,  Stephane BILAT

IPC: H02J7/00 ,  A24F47/00 ,  H05B1/02

Abstract: An aerosol-generating system includes an electric heater, a battery and control circuitry. The electric heater is configured to vaporize an aerosol-forming substance. The battery is configured to power the electric heater. The control circuitry is configured to: prevent charging of the battery in response to detecting that the electric heater is in an operation state; or prevent operation of the electric heater in response to detecting that the battery is in a charging state.

公开(公告)号：US20240244716A1

公开(公告)日：2024-07-18

申请号：US18621527

申请日：2024-03-29

Applicant: Altria Client Services LLC

Inventor： Stephane BILAT ,  Guillaume COLOTTE

IPC: H05B1/02 ,  A24F40/50 ,  A24F40/53 ,  A24F40/57 ,  H05B3/44 ,  A24F40/10 ,  A24F40/20

CPC classification number: H05B1/0277 ,  A24F40/50 ,  A24F40/53 ,  A24F40/57 ,  H05B3/44 ,  A24F40/10 ,  A24F40/20

Abstract: An electrically operated aerosol-generating system may be configured to detect adverse conditions (e.g., a dry heater). The system may comprise an electric heater comprising at least one heating element for heating an aerosol-forming substrate, a power supply, and electric circuitry connected to the electric heater and to the power supply and comprising a memory. The electric circuitry may be configured to measure an initial electrical resistance (R1) of the electric heater; measure a subsequent electrical resistance of the electric heater after the measurement of the initial electrical resistance; determine the difference (ΔR) between the initial electrical resistance and the subsequent electrical resistance; determine that an adverse condition is present if the difference is greater than a maximum threshold value (ΔRmax) or less than a minimum threshold value (ΔRmin) stored in the memory; and control a power to the electric heater and/or provide an indication if the adverse condition is present.

公开(公告)号：US20210108956A1

公开(公告)日：2021-04-15

申请号：US17130063

申请日：2020-12-22

Applicant: Altria Client Services LLC

Inventor： Guillaume COLOTTE ,  Stephane BILAT

IPC: G01F23/18 ,  A24F40/10 ,  A24F40/51 ,  A24F40/53

Abstract: A aerosol-generating system includes a liquid storage portion, a liquid pressure sensor within the liquid storage portion, and a control unit that is in communication with the pressure sensor. The aerosol-generating system further includes an atmospheric pressure sensor in communication with the control unit. The atmospheric pressure sensor is configured to sense the atmospheric pressure of the environment. The control unit is configured to receive the pressure signals from the liquid pressure sensor and the atmospheric pressure sensor. The control unit is further configured to determine the fill level of the liquid aerosol-forming substrate based on a comparison of the pressure signals from the liquid pressure sensor and the atmospheric pressure sensor.

公开(公告)号：US20190014617A1

公开(公告)日：2019-01-10

申请号：US16030255

申请日：2018-07-09

Applicant: Altria Client Services LLC

Inventor： Stephane BILAT

IPC: H05B1/02

Abstract: An aerosol-generating system includes an electric heater and a pair of first contacts for delivering electrical power to the electric heater. The system further includes a pair of second contacts independently contacting the electric heater for measuring the voltage between the second contacts.

公开(公告)号：US20180020735A1

公开(公告)日：2018-01-25

申请号：US15658713

申请日：2017-07-25

Applicant: Altria Client Services LLC

Inventor： Stephane BILAT ,  Guillaume COLOTTE

IPC: A24F47/00 ,  H05B3/44

CPC classification number: A24F47/008 ,  H05B1/0277 ,  H05B3/44

Abstract: An electrically operated aerosol-generating system may be configured to detect adverse conditions (e.g., a dry heater). The system may comprise an electric heater comprising at least one heating element for heating an aerosol-forming substrate, a power supply, and electric circuitry connected to the electric heater and to the power supply and comprising a memory. The electric circuitry may be configured to measure an initial electrical resistance (R1) of the electric heater; measure a subsequent electrical resistance of the electric heater after the measurement of the initial electrical resistance; determine the difference (ΔR) between the initial electrical resistance and the subsequent electrical resistance; determine that an adverse condition is present if the difference is greater than a maximum threshold value (ΔRmax) or less than a minimum threshold value (ΔRmin) stored in the memory; and control a power to the electric heater and/or provide an indication if the adverse condition is present.

公开(公告)号：US20170340010A1

公开(公告)日：2017-11-30

申请号：US15606096

申请日：2017-05-26

Applicant: Altria Client Services LLC

Inventor： Stephane BILAT ,  Guillaume COLOTTE

IPC: A24F47/00 ,  B67D7/42 ,  F22B1/28 ,  F22B35/00

CPC classification number: A24F47/008 ,  B67D7/426 ,  F22B1/284 ,  F22B35/005 ,  H05B3/04 ,  H05B3/44 ,  H05B6/108 ,  H05B2203/014 ,  H05B2203/021 ,  H05B2203/022 ,  H05B2203/032

Abstract: An aerosol-generating article may comprise a liquid storage portion containing a liquid aerosol-forming substrate, and a hydrochromic material provided on the liquid storage portion. The hydrochromic material has a first colour when in the presence of or when in contact with the liquid aerosol-forming substrate and a second colour when in the absence of or when not in contact with the liquid aerosol-forming substrate. An aerosol-generating system may comprise the aerosol-generating article, an aerosol-generating element, and an aerosol-generating device. An aerosol-generating device may comprise an electrical power supply, an electronic photosensor, and a controller configured to control a supply of electrical power from the electrical power supply based on a value of an optical property sensed with the electronic photosensor.