The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
Jan. 25, 2024
Altria Client Services Llc, Richmond, VA (US);
Adam Parrott, Richmond, VA (US);
Niall Gallagher, Richmond, VA (US);
Raymond W. Lau, Richmond, VA (US);
Eric Hawes, Glen Allen, VA (US);
Ryan Newcomb, Richmond, VA (US);
Terry Bache, Richmond, VA (US);
Rangaraj S. Sundar, Midlothian, VA (US);
Jarrett Keen, Richmond, VA (US);
ALTRIA CLIENT SERVICES LLC, Richmond, VA (US);
Abstract
A method of controlling a hot wire anemometer (HWA) of a nicotine e-vaping device includes controlling, by a first PID controller, a level of power applied by the nicotine e-vaping device to the HWA based on a temperature of a heated element of the HWA and a temperature setpoint; generating a puff detection signal indicating whether or not a puff is currently occurring with respect to the nicotine e-vaping device; and while the puff detection signal indicates that a puff is not currently occurring with respect to the nicotine e-vaping device, detecting, by a second PID controller, a change in an ambient temperature of the HWA, and controlling, by the second PID controller, the temperature setpoint such that the temperature setpoint changes in response to the detected change in the ambient temperature of the HWA.