Dispensing system for alkali metals capable of releasing a high quantity of metals
US7842194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2005 |
| Grant date | Nov 30, 2010 |
| Priority date | — |
| Expiry date | Jan 26, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C14/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A dispensing system is provided for alkali metals, that allows increasing the quantity of alkali metal that can be dispensed, as well as the time during which the system can be used with properties of metal vapors release which are constant over time. The system includes an alkali metal dispenser, the dispenser being a metallic container having one or more first openings and containing a mixture of one or more alkali metal compounds and one or more reducing compounds, preferably in the form of loose powders or pellets of the powders. The system further includes a metallic shield which substantially encloses the container and has one or more second openings facing the first openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.