Unit for sterilizing a web of packaging material for a machine for packaging pourable food products

US9408932B2 · kind B2 · utility

Assignee

• Tetra Laval Holdings & Finance S.A. · CH

Inventors

• Roberto Ghirardello · Carpi, IT
• Danilo Veroni · Casalgrande, IT
• Alessandro Veronesi · Limidi di Soliera, IT
• Robert A. Bartolini · Trenton, US
• Daniele Apparuti · Montale Rangone, IT
• Renzo Bellei · Modena, IT

Key dates

• Filing date: Aug 29, 2012
• Grant date: Aug 9, 2016
• Expiry date: Dec 20, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65B55/103
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

There is described a unit for sterilizing a web of packaging material advanced along a given path, having, along a longitudinal portion thereof, a succession of pre-applied opening devices and adapted to be transformed in a plurality of sealed packages containing a pourable food product; the unit comprises a bath, containing a sterilizing agent in which the web with the opening devices is advanced, and an aseptic chamber connected to an outlet of the bath and housing drying mechanism for removing residual sterilizing agent from the web; the drying mechanism comprise an ejector located at a distance from the outlet of the bath and configured so as to direct a stream of air transversally to the web and onto the longitudinal portion of the web provided with the opening devices.