The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2006
Filed:
Feb. 07, 2003
Paolo Benedetti, Modena, IT;
Filippo Ferrarini, Modena, IT;
Paolo Benedetti, Modena, IT;
Filippo Ferrarini, Modena, IT;
Tetra Laval Holdings & Finance S.A., Pully, CH;
Abstract
A unit for sterilizing a web () of packaging material on a machine () for packaging pourable food products, the unit having a bath () containing a sterilizing agent, in which the web () is fed continuously; a process chamber () connected to an outlet () of the bath (), and housing drying means () for removing residual sterilizing agent from the web (); an aseptic chamber () communicating with the process chamber () via an opening () for passage of the web (), and in which the web () is folded and sealed longitudinally to form a tube () which is filled continuously with the product for packaging; and an air processing circuit () for controlling process conditions; the circuit () draws air from the process chamber () through an orifice (), the opening of which is adjustable, during operation of the machine, by a shutter () to maintain a pressure value greater than a predetermined minimum value in the aseptic chamber ().