Cathode ray tube having implosion band with raised tabs and method
US5057929A · kind A · utility
7Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1988 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | Sep 30, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/87
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An implosion band for a cathode ray tube has a plurality of raised tabs distributed about the periphery of the rearward edge of the band to accommodate attachment of additional tube components such as degaussing coils. The tabs are formed by: punching narrow slots in a strip of band material, near a longitudinal edge of the strip; forming the strip into a hoop by butt welding the ends of the strip; and stretching the hoop into a rectangular band while at the same time displacing outwardly the band material between the slot and the edge of the band to form the tabs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.