Heating and agitating method for multi-stage melting and refining of glass
US4816056A · kind A · utility
90Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Oct 2, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/50
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a method of making glass or the like, wherein the batch materials are liquefied in a distinct zone from the refiner, the liquefied material is heated in an intermediate stage before being fed to the refiner. The heating entails intensified flames that impinge the surface to provide homogenization and a barrier to surface flow of low density material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.