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:
Jun. 28, 2011
Filed:
Jun. 11, 2007
Marko Jorkama, Järvenpää, FI;
Kimmo Penttilä, Helsinki, FI;
Marko Jorkama, Järvenpää, FI;
Kimmo Penttilä, Helsinki, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
An arrangement of attenuating the vibration in a roll assembly of a fiber web machine, in which assembly the roll () being rotatably suspended at its end on bearings in bearing housings (), and the bearing housings being supported on the frame or the foundation of the machine via viscoelastic intermediate piece or pieces (). The loss factor of the intermediate piece is greater than 0.1 at the normal operating conditions of the roll at a frequency range, which is ±10% calculated from the lowest bending eigenfrequency of the roll, and in the each end of the roll the spring constant of the total influence of the intermediate piece or pieces is in the range of 0.04 GN/m-1 GN/m.