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. 02, 2004
Filed:
Feb. 13, 2002
Lars-Erik Palm, Lund, SE;
Tetra Laval Holdings & Finance S.A., Pully, CH;
Abstract
There is described a packaging machine ( ) for producing sealed aseptic packages ( ) of a pourable food product from a tube ( ) of packaging material fed along a vertical path (A) and filled continuously with the food product. The machine ( ) has gripping means ( ) for gripping the tube ( ) at equally spaced cross sections ( ); and sealing means ( ) for sealing the packaging material of the tube ( ) along the cross sections ( ), and in turn having a first and a second sealing device ( ) forming part of respective distinct, successive units ( ) of the machine ( ). The first sealing device ( ) interacts with the cross sections ( ) of the tube ( ) for a time (T ) shorter than the time (T) required to achieve complete sealing of the cross sections ( ), but sufficient to form respective temporary aseptic transverse sealing bands ( ); and the second sealing device ( ) interacts with said temporary sealing bands ( ) to seal them completely. (FIGS. and )