Patent ID: 6574992
Filing Date: 2003-06-10
Classification: C03B

Abstract:
Process for bending and quenching a window pane, in which the window pane heated to the bending temperature is bent into the desired shape in a horizontal position using a forming frame and the entire surface of both sides of the bent window pane is then rapidly cooled on this forming frame, in a quenching station which follows the bending station, by blowing cold air using blowing boxes provided with blowing nozzles, characterized in that, while the entire surface of the window pane is being rapidly cooled, the edge regions of the window pane that are in contact with the forming frame are subjected to additional blowing of cold air by a suitable supply only from below, to openings passing through the forming frame, of compressed air at a pressure greater than ambient pressure which prevails between the blowing boxes.