US 11,785,991 B2
Use of infrared temperature detection in an aerosol delivery device
Rajesh Sur, Winston-Salem, NC (US)
Assigned to RAI Strategic Holdings, Inc., Winston-Salem, NC (US)
Filed by RAI STRATEGIC HOLDINGS, INC., Ninston-Salem, NC (US)
Filed on Oct. 4, 2019, as Appl. No. 16/593,454.
Prior Publication US 2021/0100291 A1, Apr. 8, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A24F 40/57 (2020.01); G01J 5/10 (2006.01); G05D 23/19 (2006.01); A24F 40/46 (2020.01)
CPC A24F 40/57 (2020.01) [A24F 40/46 (2020.01); G01J 5/10 (2013.01); G05D 23/1917 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An aerosol delivery device comprising:
a power source configured to provide a voltage;
a housing structured to retain an aerosol precursor composition that is a solid or semi-solid;
a heating element powerable to heat and thereby vaporize components of the aerosol precursor composition;
processing circuitry configured to control the voltage from the power source to the heating element to power the heating element; and
an infrared temperature sensor coupled to the processing circuitry, and configured to directly measure infrared energy emitted by the aerosol precursor composition in response to the heating thereof by the heating element, wherein the infrared energy emitted by the heated aerosol precursor composition is variable and proportional to a temperature of the aerosol precursor composition heated by the heating element, and
wherein the processing circuitry or the infrared temperature sensor is configured to determine the temperature of the aerosol precursor composition from the infrared energy emitted thereby and directly measured by the infrared temperature sensor, and the processing circuitry is configured to adjust the voltage from the power source to the heating element when the temperature of the aerosol precursor composition deviates from a predetermined target.