Apparatus for applying a glass frit to a seal edge of a funnel portion of a picture tube
US4048951A · kind A · utility
9Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 6, 1975 |
| Grant date | Sep 20, 1977 |
| Priority date | — |
| Expiry date | Aug 6, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/263
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for applying a continuous layer of glass frit to a connection or sealing edge surface of the funnel portion of a picture tube. The glass frit flows onto such surface from a nozzle of a glass frit containing pot while the funnel portion is carried by a turntable. Means are provided for rotating the turntable at such a speed that the relative speed, between the nozzle and the connection surface positioned therebelow, is substantially inversely proportional to the width of the connection surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.