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:
Aug. 24, 2021
Filed:
May. 28, 2019
Tetra Laval Holdings & Finance S.a., Pully, CH;
Andrea Donati, Castelnuovo Rangone, IT;
Tetra Laval Holdngs & Finance S.A., Pully, CH;
Abstract
There is described a packaging machine for producing sealed packages of a pourable product from a web of packaging material, which may include conveying means for advancing the web of packaging material along a web advancement path at least to a tube forming station at which the web of packaging material is formed into a tube and for advancing the tube along a tube advancement path, an isolation housing having a main chamber and an auxiliary chamber arranged downstream of the main chamber along the tube advancement path, a tube forming and sealing device at least partially arranged within the main chamber and being configured to form and longitudinally seal the tube within the main chamber, a filling device for filling the tube with the pourable product and a pressure control device configured to control a first pressure within the main chamber and a second pressure within the auxiliary chamber such that the first pressure is higher than the second pressure and the first pressure and the second pressure are both higher than the ambient pressure.