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:
Jul. 19, 2022
Filed:
Mar. 26, 2019
Tetra Laval Holdings & Finance S.a., Pully, CH;
Luca Poppi, Formigine, IT;
Filippo Ferrarini, Modena, IT;
TETRA LAVAL HOLDINGS & FINANCE S.A., Pully, CH;
Abstract
A sterilization apparatus for sterilizing a web of packaging material advancing along a web advancement path-comprises an irradiation device for sterilizing the advancing packaging material web, a main shielding chamber housing the irradiation device and comprising an advancement channel having an inlet opening and an outlet opening and through which, in use, the packaging material web advances along the sterilization portion, an auxiliary shielding chamber upstream of the advancement channel along the web advancement path, the auxiliary shielding chamber having an inner space in fluid connection with the advancement channel and comprising an extraction opening allowing gas extraction from the auxiliary shielding chamber. An aspiration device generates a first flow of gas within the advancement channel from the outlet opening to the inlet opening and a second flow of gas from the inlet opening to the extraction opening.