Cathode ray tube device having reinforcing frame
US5304890A · kind A · utility
7Cited by
11References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1991 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Dec 31, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/861
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode ray tube has a metal funnel welded to a metal skirt. The skirt is reinforced to resist tensile stress. Reinforcement is accomplished by thickening the skirt, or corner portions thereof; by welding one or more reinforcing members to the inside or outside of the skirt; by bending the edges of the skirt and funnel and welding the bent parts together; by welding reinforcing plates to corners of the skirt and winding a tension band around the skirt; or by providing a rigid frame with compression members to press inward on the skirt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.