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:
Mar. 18, 2014
Filed:
Feb. 16, 2012
Mats Görrel, Karlstad, SE;
Karl-johan Tolfsson, Forshaga, SE;
Mats Görrel, Karlstad, SE;
Karl-Johan Tolfsson, Forshaga, SE;
Valmet Aktiebolag, Sundsvall, SE;
Abstract
The present invention relates to a press device () that comprises an extended nip roll () and a counter roll (). The extended nip roll () has a flexible jacket () and a support body () inside the flexible jacket (). The extended nip () roll also has internal means for causing the support body () to move or expand radially towards an inner surface () of the flexible jacket () to form a nip with the counter roll. The rolls () have axial ends () that are supported in bearing housings (). One or several actuators () such as hydraulic cylinders connects bearing housings () to each other and the actuator or actuators () are arranged to act on the bearing housings () to cause them to move to each other in a closing movement. A mechanical stop () which is separate from the rolls () is arranged to halt the closing movement. The invention also relates to a machine that uses the press device and to a method of operating the press device.