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. 19, 2008
Filed:
May. 22, 2003
Angelo Benvenuti, Lucca, IT;
Franco Montagnani, Pisa, IT;
Angelo Benvenuti, Lucca, IT;
Franco Montagnani, Pisa, IT;
Fabio Perini S.p.A., Lucca, IT;
Abstract
The control device comprises: at least one member (X) for regulating the speed of advance on the weblike material; a central control unit (); a guiding roller () with mobile axis, over which the weblike material is run; and a position transducer () for detecting the position of the guiding roller () and for generating a position signal for controlling the speed of said weblike material. The guiding roller () is supported in a controlled position, and associated thereto is at least one sensor () for detecting a load (F) applied by the weblike material (N) on the guiding roller (). In addition, an actuator () controls a displacement of the guiding roller according to a feedback signal generated by the sensor (). The actuator is controlled so as to make up for variations of the load of the weblike material by moving the axis of the guiding roller, and the member for regulating the speed of advance of the weblike material () is controlled by said central control unit (), according to the position signal, so as to maintain the axis of the guiding roller () in a position that is on average constant.