Aerosol generating system with self-activated electric heater
US11013262B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 2018 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Dec 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/021
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic vaping device includes a liquid storage portion, an electric heater and electronic circuitry. The liquid storage portion is configured to store liquid vapor-forming substrate. The electric heater includes at least one heating element, the at least one heating element configured to heat the liquid vapor-forming substrate. The electronic circuitry is configured to self-activate the electric heater for a first time interval during a period of inactivity of the electric heater to determine depletion of the liquid vapor-forming substrate based on a relationship between a power applied to the at least one heating element and a resulting temperature change of the at least one heating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.