Radiant energy – Irradiation of objects or material
Reexamination Certificate
2004-06-08
2008-08-26
Vanore, David A. (Department: 2881)
Radiant energy
Irradiation of objects or material
C250S492300, C250S455110
Reexamination Certificate
active
07417239
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 (107) comprising a web inlet opening (115) and a web outlet opening (115) and a web outlet opening (121), providing a second chamber (111) extending inside the first chamber (107), the second chamber (111) comprising a a web inlet opening (114), a web outlet opening (112), and an electron exit surface (21) through which electrons are adapted to be emitted into the second chamber (111), passing the web (W) through the second chamber (111), and creating a flow of a gaseous fluid through both the first and second chambers (107, 111) in a direction opposite the direction of travel of the web (W) by supplying said fluid into the web outlet opening (121) of the first chamber (107) and providing at least one outlet (113).
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U.S. Appl. No. 10/555,759, filed Nov. 7, 2005.
Benedetti Paolo
Eriksson Anna
Ferrarini Filippo
Naslund Lars Ake
Nilsson Tommy
Buchanan & Ingersoll & Rooney PC
Johnston Phillip A.
Tetra Laval Holdings & Finance S.A.
Vanore David A.
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