Getter device employing calcium evaporation
US6583559B1 · kind B1 · utility
4Cited by
23References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2000 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Jan 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J7/183
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A getter comprising a calcium-aluminum compound including about 39% to about 43% calcium by weight produces a calcium vapor when sufficiently heated. The calcium vapor can condense to form a calcium film on an inside surface of a sealed evacuated enclosure such as a CRT to getter reactive species from the enclosed volume. The calcium-aluminum compound, preferably CaAl2 powder, can be mixed with either nickel powder, titanium powder, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.