Getter comprising U-shaped channel ring having two ring holders containing getter material
US4134041A · kind A · utility
8Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1977 |
| Grant date | Jan 9, 1979 |
| Priority date | — |
| Expiry date | Mar 4, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/94
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A color television picture tube comprising a glass cone portion, a glass window portion and a metal screening cone. The metal screening cone is located within the volume defined by the glass cone portion and the glass window portion. At least a major portion of the metal screening cone is distanced away from the glass cone portion. An evaporable getter device is placed between the metal screening cone and the glass cone portion. Getter material vapors from the getter device evaporate in a direction substantially parallel to the surfaces of the glass window portion, the glass cone portion and the metal screening cone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.