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:
Apr. 09, 1996
Filed:
Jun. 15, 1994
Vesa Raudaskoski, Jarvenpaa, FI;
Valmet Paper Machinery, Inc., Helsinki, FI;
Abstract
A drum winder and method for winding a web in a drum winder, in which winding drums support a roll that is being formed and a cutter device cuts the web before a new winding is started on an empty roll spool. The cutter device has a cutter blade, an actuator, and a power transmission system operatively coupled to the cutter blade of the cutter device so that the movement of the actuator is transferable by the power transmission arrangement to the cutter blade. The cutter blade is movable along a curved path of movement so that the position of the cutter blade in its lower position is substantially more distant from one of the winding drums than it is in its upper position. On the blade beam of the cutter blade, seal units are arranged to seal the winding drums from below. The gap between the winding drums is sealed from above by an upper end-seal unit, whereby the gap between the winding drums can be pressurized. On the blade beam of the cutter blade, a sealing doctor blade may be arranged. The blade beam is provided with an end seal.