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. 24, 2008
Filed:
Nov. 11, 2003
Applicant:
Jaakko Haapanen, Järvenpää, FI;
Inventor:
Jaakko Haapanen, Järvenpää, FI;
Assignee:
Metso Paper, Inc., Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 18/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A core locking device has members () for locking the device () to a winding core of a roll to be wound on a two-drum winder, advantageously to a core. The device () is placed on a slide arranged in connection with the two-drum winder, and moves, as winding progresses, with the center of the roll being formed along the slide. The device () has an actuator () to produce a counterforce for the force caused by the mass of the core locking device () in the changed position of the core locking device ().