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:
Nov. 05, 2013
Filed:
May. 14, 2009
Andrea Donati, Castelnuovo, IT;
Andrea Donati, Castelnuovo, IT;
Tetra Laval Holdings & Finance S.A., Pully, CH;
Abstract
A unit for sterilizing a web of packaging material for a machine for packaging pourable food products includes a sterilizing chamber containing a liquid sterilizing agent at a first temperature; a conveying device for feeding the web through the sterilizing chamber before the web is formed into a succession of sealed packages of pourable food products; a hold tank for the sterilizing agent; a feed mechanism activated selectively to feed the sterilizing agent from the tank to the sterilizing chamber; a drain activated selectively to drain the sterilizing agent from the sterilizing chamber into the tank in the event of stoppage of the packaging machine; and a cooling device activated selectively, at the end of the package production cycle, to cool the sterilizing agent in the tank to a second temperature lower than the first temperature.