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:
May. 14, 2013
Filed:
Jun. 25, 2010
Peter Svenka, Grefrath, DE;
Bernhard Brendel, Tönisvorst, DE;
Eduard Davydenko, Grefrath-Oedt, DE;
Andritz Kusters GmbH, Krefeld, DE;
Abstract
A calender () for calendering a paper web (), in particular made from paper suitable for gravure printing, having at least one roll stack which in each case has an upper and a lower end roll () and intermediate rolls (), one of the two end rolls () delimits a first working nip () of the roll stack depending on the guidance of the paper web (), and the rolls () are hard rolls () and soft rolls () in order to form loadable working nips in the form of soft nips, the end roll () which delimits the first working nip () being a hard, heated roll, the diameter of which is greater than that of a hard, heated intermediate roll () and the outer wall () of which forms one of two contact faces () of a web treatment nip () which is arranged upstream of the first working nip (), and the other contact face () being formed by a belt () which circulates on guide rolls ().