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. 26, 2008
Filed:
Jun. 08, 2004
Lars Ake Naslund, Furulund, SE;
Tommy Nilsson, Svedala, SE;
Luca Poppi, Formigine, IT;
Paolo Benedetti, Modena, IT;
Anna Eriksson, Rydeback, SE;
Filippo Ferrarini, Modena, IT;
Lars Ake Naslund, Furulund, SE;
Tommy Nilsson, Svedala, SE;
Luca Poppi, Formigine, IT;
Paolo Benedetti, Modena, IT;
Anna Eriksson, Rydeback, SE;
Filippo Ferrarini, Modena, IT;
Tetra Laval Holdings & Finance S.A., Pully, CH;
Abstract
The invention refers to a method and device for ventilating a device for electron beam irradiation of a web (W), the method comprising the steps of: providing a first chamber () comprising a web inlet opening () and a web outlet opening () and a web outlet opening (), providing a second chamber () extending inside the first chamber (), the second chamber () comprising a a web inlet opening (), a web outlet opening (), and an electron exit surface () through which electrons are adapted to be emitted into the second chamber (), passing the web (W) through the second chamber (), and creating a flow of a gaseous fluid through both the first and second chambers () in a direction opposite the direction of travel of the web (W) by supplying said fluid into the web outlet opening () of the first chamber () and providing at least one outlet ().