Patent ID: 9682881
Date: 2017-06-20
CPC Classifications: B65B,C03B

Claim:
1. A method for producing a glass container by pressing, wherein the method comprises: a) providing a die having an internal surface which is intended to shape an outer surface of a wall of the container, b) providing a punch comprising an external surface which is intended to shape an internal surface of the wall of the container, c) placing the punch within the die in a forming position in which a receiving space is defined between the internal surface of the die and the external surface of the punch, a deformable gob of glass extending partly within the receiving space, the punch being capable of being moved with respect to the die in a withdrawing movement between the forming position and a withdrawn position, a volume envelope being defined by the cumulative volume occupied by the punch between its forming and withdrawn positions, d) while keeping the gob of glass within the die and the punch in the forming position, the gob of glass which is deformed between an initial state having an initial volume and a subsequent state having a subsequent volume is cooled, the initial volume intercepting the volume envelope, and the subsequent volume not intercepting the volume envelope, e) extracting the punch.