Shadow mask support in a color cathode ray tube
US4308485A · kind A · utility
23Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1979 |
| Grant date | Dec 29, 1981 |
| Priority date | — |
| Expiry date | Mar 8, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/0772
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A shadow-mask cathode ray tube for the visualization of colors, such as in television, where the peripheral edge of the mask is rigid with the frame fixed on the tube plate and is in contact with said frame only in areas spaced from each other. The frame is formed with bosses providing its contact in reduced cross-section areas spaced from each other with the edge of the mask.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.