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:
Mar. 13, 2012
Filed:
Oct. 20, 2006
Martti Pulliainen, Mikkeli, FI;
Mikko Vepsalainen, Mikkeli, FI;
Jukka Rautiainen, Mikkeli, FI;
Matti Hakkinen, Mikkeli, FI;
Pekka Kylliainen, Imatra, FI;
Seppo Karine, Imatra, FI;
Jari Rasanen, Imatra, FI;
Kirsi Partti-pellinen, Imatra, FI;
Ari Johansson, Imatra, FI;
Isto Heiskanen, Imatra, FI;
Jyri Jarvi, Espoo, FI;
Martti Pulliainen, Mikkeli, FI;
Mikko Vepsalainen, Mikkeli, FI;
Jukka Rautiainen, Mikkeli, FI;
Matti Hakkinen, Mikkeli, FI;
Pekka Kylliainen, Imatra, FI;
Seppo Karine, Imatra, FI;
Jari Rasanen, Imatra, FI;
Kirsi Partti-Pellinen, Imatra, FI;
Ari Johansson, Imatra, FI;
Isto Heiskanen, Imatra, FI;
Jyri Jarvi, Espoo, FI;
Savcor Process Oy, Mikkeli, FI;
Abstract
The invention relates to a method in the wet end of a web forming process. In the method, at least one electrode pair () is placed in the wet end. The electrode pair () is supplied with a current/voltage from a power source (), so that an electric field is set up between the electrode pair (), causing the material particles in the pulp suspension in the wet end to be electrically charged in a desired manner and to move in a desired manner in the pulp suspension in the wet end. The current/voltage of the power source () is controlled by means of a measuring and control unit () so as to cause the material particles in the pulp suspension to be electrically charged and to move in a desired manner, thus allowing the retention, formation and orientation of the material particles in the pulp suspension to be substantially improved.