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:
Oct. 15, 2002
Filed:
Jul. 30, 2001
Kari Räisänen, Tampere, FI;
Pasi Virtanen, Valkeakoski, FI;
Sakari Soini, Somero, FI;
Kimmo Penttilä, Tampere, FI;
Kari J. Salminen, Ylinen, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
The invention concerns an equipment and a method in a twin-wire former, in which a partly pre-drained or non-drained fiber stock is passed to between the forming wires of the web former in the vicinity of the former roll ( ) or of a water drain box, in which connection water is drained out of the stock web by means of the former roll ( ) or the water drain box. The twin-wire former comprises a rib ( ) in connection with the former roll ( ) or the water drain box in the lateral area of the wires (H ), which rib has been fitted to control the running of the second forming wire H ) passed from the gap roll. By means of the rib ( ), in the lateral area of the wire runs, the point at which said forming wire (H ) reaches contact with the first forming wire in connection with the former roll ( ) or the water drain box is shifted further away in the machine direction. The rib ( ) is an oblong structure, which has a maximal height (H ) in the middle area of the rib ( ).