Cathode ray tube having stress resistant frame
US4990825A · kind A · utility
6Cited by
5References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Sep 11, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/875
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode ray tube for use as a video display or the like includes a panel, a funnel, and a stress resistant frame having an L-shaped bend and constituted by a metal frame joined to both the panel and the funnel. The stress resistant frame is adapted to reinforce the cathode ray tube against a tensile stress occurring due to a reduction in the internal pressure of the cathode ray tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.