US 12,082,619 B2
Electronic vaping devices
Loi Ying Liu, Hong Kong (CN)
Assigned to Altria Client Services LLC, Richmond, VA (US)
Filed by Altria Client Services LLC, Richmond, VA (US)
Filed on May 12, 2023, as Appl. No. 18/316,388.
Application 17/385,173 is a division of application No. 16/740,952, filed on Jan. 13, 2020, granted, now 11,103,011, issued on Aug. 31, 2021.
Application 16/740,952 is a division of application No. 16/364,656, filed on Mar. 26, 2019, granted, now 10,568,363, issued on Feb. 25, 2020.
Application 16/364,656 is a division of application No. 16/148,276, filed on Oct. 1, 2018, granted, now 10,244,796, issued on Apr. 2, 2019.
Application 16/148,276 is a division of application No. 16/044,870, filed on Jul. 25, 2018, granted, now 10,123,570, issued on Nov. 13, 2018.
Application 16/044,870 is a division of application No. 14/433,556, granted, now 10,111,465, issued on Oct. 30, 2018, previously published as PCT/IB2013/059166, filed on Oct. 7, 2013.
Application 18/316,388 is a continuation of application No. 17/385,173, filed on Jul. 26, 2021, granted, now 11,684,088.
Claims priority of application No. 121098150 (HK), filed on Oct. 5, 2012.
Prior Publication US 2023/0329349 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A24F 40/50 (2020.01); A24F 40/40 (2020.01); A24F 40/57 (2020.01); H05B 1/02 (2006.01); A24F 40/10 (2020.01)
CPC A24F 40/50 (2020.01) [A24F 40/40 (2020.01); A24F 40/57 (2020.01); H05B 1/0244 (2013.01); A24F 40/10 (2020.01)] 20 Claims
OG exemplary drawing
 
1. An electronic aerosol-generating device, comprising:
a heater to generate an aerosol;
a switching circuit configured to control supply of operating power to the heater to generate the aerosol; and
a controller configured to control the switching circuit to
supply the operating power at a first power level in response to detecting a first level of airflow through the electronic aerosol-generating device, the first level of airflow being at or above a first threshold level,
reduce the operating power from the first power level to a second power level after expiration of a first time period following detection of the first level of airflow,
reduce the operating power from the second power level to zero in response to detecting a second level of airflow through the electronic aerosol-generating device,
increase the operating power from zero to the first power level in response to detecting a third level of airflow through the electronic aerosol-generating device, the third level of airflow being at or above the first threshold level, and
reduce the operating power from the first power level to the second power level after expiration of a second time period following detection of the third level of airflow, the second time period being shorter than the first time period.