/Nicotine Electronic Vaping Devices Having Dryness Detection And Auto Shutdown
Abstract

The nicotine electronic vaping device includes a nicotine reservoir, a heater and processing circuitry. The processing circuitry is configured to: determine a plurality of resistance values for the heater during a time window; calculate a percent change in resistance of the heater between a first of the plurality of resistance values and a second of the plurality of resistance values; decide whether the percent change in resistance of the heater exceeds a percent change in resistance threshold; and disable power to the heater in response to deciding that the percent change in resistance of the heater exceeds the percent change in resistance threshold.

Full Text

What is claimed is:

The nicotine electronic vaping device includes a nicotine reservoir, a heater and processing circuitry. The processing circuitry is configured to: determine a plurality of resistance values for the heater during a time window; calculate a percent change in resistance of the heater between a first of the plurality of resistance values and a second of the plurality of resistance values; decide whether the percent change in resistance of the heater exceeds a percent change in resistance threshold; and disable power to the heater in response to deciding that the percent change in resistance of the heater exceeds the percent change in resistance threshold.
Timeline
Filed
04/22/2026
Published
08/27/2026
Granted
Not Available
IPC Codes(3)
A24F 40/57:Temperature control
A24F 40/10:Devices using liquid inhalable precursors
A24F 40/53:Monitoring, e.g. fault detection