Apparatus for obtaining cambered and/or glazed glass sheets
US5268016A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1991 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Sep 24, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B23/035
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for cambering glass sheets includes a reheating furnace for reheating a glass sheet, a sealed cambering station and a conveyor for transferring a heated glass sheet from the furnace to the cambering station. The cambering station includes a shaping upper member. The glass sheet therein is raised into engagement with the upper member, for example by gas pressure, in order to camber the glass sheet. Hot gas ducts surrounding the upper member blow hot gas onto the upper member in such a way as to increased the temperature thereof to a temperature higher than that of the glass sheet when the glass sheet enters the cambering station. Therefore, the glass sheet can be introduced into the cambering station at a relatively low temperature and heated to a temperature high enough for cambering only when in contact with the upper member. The cambered glass sheet can then be discharged to a cooling station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.