Method and apparatus for the localization of heating in a tempering furnace for glass panels
US6064040A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1999 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Feb 18, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B29/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method and apparatus for the localization or focusing of heating in a tempering furnace for glass panels. Glass panels are carried and supported in a furnace (2) by rollers (11). The furnace is provided with upper and lower nozzle boxes (4, 14), including nozzle heads (5, 15) for blasting hot convection air to heat the glass panels to a tempering temperature. The arrival of a load in the furnace is preceded by reading a load picture and by controlling radiation heat resistances (10) present in the furnace in such a way that radiation heating can be focused on the central areas of critical glass panels to provide extra heating therefor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.