Aerosol generating system having means for handling consumption of a liquid subtrate
US9763476B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2011 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Jul 21, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8206
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
There is provided an electrically operated aerosol generating system for receiving an aerosol-forming substrate. The system includes a liquid storage portion for storing liquid aerosol-forming substrate, an electric heater including at least one heating element for heating the liquid aerosol-forming substrate, and electric circuitry configured to monitor activation of the electric heater and estimate an amount of liquid aerosol-forming substrate remaining in the liquid storage portion based on the monitored activation. There is also provided a method in an electrically operated aerosol generating system including a liquid storage portion for storing liquid aerosol-forming substrate and an electric heater including at least one heating element for heating the liquid aerosol-forming substrate, the method including monitoring activation of the electric heater and estimating an amount of liquid aerosol-forming substrate remaining in the liquid storage portion based on the monitored activation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.