Electronic vapor provision system
US10499688B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2015 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Mar 30, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8206
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electronic vapor provision system includes a vaporizer for vaporizing liquid for inhalation by a user of the electronic vapor provision system; a power supply comprising a cell or battery for supplying power to the vaporizer; a sensor for measuring the rate of airflow through the electronic vapor provision system as a result of the inhalation by the user; and a control unit for controlling the power supplied to the vaporizer based on a cumulative airflow for this inhalation by the user, wherein the cumulative airflow is determined based on the measurements of airflow rate by the sensor. Such a system allows the user control over the amount of vaporized liquid obtained in a given inhalation based on the cumulative airflow for the given inhalation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.