Method and apparatus for homogenizing flat glass
US4744809A · kind A · utility
20Cited by
16References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1987 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Jan 2, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/50
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Stirring of glass of high optical quality is effected by initiating forming of the glass, such as by the float process, at relatively high temperatures immediately after the glass has been stirred. Preferably, during and/or following the stirring operation contact between the molten glass and ceramic refractories is minimized. This is preferably accomplished by providing a layer of molton metal (e.g., tin) on the bottom of the stirring chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.