Tensioned shadow mask for cathode ray tube including tie bars having dummy bridges
US6472806B1 · kind B1 · utility
2Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1999 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Dec 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/075
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A tensioned shadow mask for a cathode ray tube (CRT), including: a series of parallel strips separated by slits having a predetermined interval; a plurality of tie bars interconnecting adjacent strips to define a plurality of slits at predetermined intervals; and a plurality of dummy bridges disposed between adjacent tie bars, extending from one of the strips to the other but not interconnecting the adjacent strips, wherein a length of the dummy bridges is greater than a length of the tie bars in the longitudinal direction of the strips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.