Mask-frame assembly for cathode ray tube
US6518695B2 · kind B2 · utility
1Cited by
12References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1999 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Sep 21, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/0716
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mask-frame assembly for a cathode ray tube includes a mask frame having a front portion and a side portion perpendicularly extending from the edge of the front portion and having notches, and a shadow mask having a front screen portion and a skirt portion welded to non-notched parts of the side portion of the mask frame. A portion of the skirt portion is not welded to the mask frame but exposed outside the mask frame so as to improve a thermal exchange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.