E-cigarette vaporizer cartridge filling method and apparatus
US10440989B2 · kind B2 · utility
25Cited by
34References
48Claims
0Family size
Inventors
Key dates
| Filing date | Nov 11, 2016 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Mar 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An e-cigarette vaporizer cartridge filling method and apparatus. The apparatus includes a liquid reservoir having an outlet end, the liquid reservoir for containing the liquid, a heater for heating the liquid in the liquid reservoir, and a liquid injection mechanism configured to draw portions of the heated liquid from an outlet end of the liquid reservoir and dispense the portions from an output end of the liquid injection mechanism. The method may allow for a human operator to control the time for filling the liquid injection mechanism with liquid based on visual observation of bubble formation and collapse therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.