Method for manufacturing a hollow glass product from a glass tube semi-finished product having markings, and uses of the same

US11542195B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• André Witzmann · Waldershof, DE
• Ulla Trinks · Mitterteich, DE
• Reinhard Mannl · Mitterteich, DE

Key dates

• Filing date: Dec 8, 2017
• Grant date: Jan 3, 2023
• Expiry date: Mar 4, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41M5/262
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A glass tube semi-finished product or a hollow glass product manufactured from the glass tube semi-finished product is provided with a first marking with information on the origin and/or tube-specific production data of the glass tube semi-finished product, which marking is read from the hollow glass product after its manufacture to determine the origin and/or the tube-specific production data of the glass tube semi-finished product, e.g., to identify the semi-finished glass tube from which the hollow glass product has been made, and/or trace the tube-specific production data of this glass tube semi-finished product. This means that the entire supply chain for the hollow glass product from the supplier of the originally used glass tube semi-finished product up to the end product can be determined. The physical and chemical characteristics of the glass tube semi-finished product are not altered for producing the first marking.