Method and device for the detection and identification of harmful substances in beverage bottles in filling lines

US5405014A · kind A · utility

Assignee

• Gunther Krieg · DE

Inventors

• Gunther Krieg · Karlsruhe, DE
• Karl Koukolitschek · Karlsruhe, DE
• Wilfried Maier · Eppingen, DE

Key dates

• Filing date: Jan 19, 1993
• Grant date: Apr 11, 1995
• Expiry date: Jan 19, 2013

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N33/0081
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method and device for detection and identification of liquid, solid, and gaseous foreign substances of beverages and/or beverage residues in re-usable bottles, especially in plastic bottles and other containers. Electromagnetic radiation traverses the walls of the bottles and containers at least once, and by areas of residual liquid, areas with liquid films, solid films on the inside wall and areas with contamination inside the wall are detected by the electromagnetic radiation.