Method for bending and/or tempering sheet glass and bending frame therefor

US5974834A · kind A · utility

Assignee

• Saint-Gobain Vitrage · FR

Inventors

• Ludwic Johan Rijkens · Kerkrade, NL
• Hans Josef Thevissen · Heinsberg, DE
• Franz Stiel · Aachen, DE
• Juergen Schmitz · Bergheim, DE
• Alwin Timmermann · Cologne, DE

Key dates

• Filing date: Dec 22, 1997
• Grant date: Nov 2, 1999
• Expiry date: Dec 22, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03B35/202
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

For a method for bending and tempering glass which has an opening, the glass is bent in the horizontal position using a bending frame (9) and is tempered on the bending frame (9). The bending frame in respect of its contour and of its geometric shape corresponds to the desired shape of the bent glass. During the bending operation and during the tempering operation the glass is supported, in the region around the edge of the opening, by an additional internal bending frame (12).