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:
Jan. 11, 2005
Filed:
Dec. 09, 2002
Hannu Lepomäki, Laukaa, FI;
Juhani Sams, Jyväskylä, FI;
Hannu Lepomäki, Laukaa, FI;
Juhani Sams, Jyväskylä, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
In the short circulation of a paper machine, a chemicals flow (F) is fed into a fibre suspension flow in connection with a pipe expansion comprising a first pipe () and a second pipe () having a larger diameter than the first pipe, which pipes are connected to each other by means of an expansion step () perpendicular to the direction of flow. The chemicals flow (F) can be passed so as to be mixed with the fibre suspension flow either in the second pipe () in an ideal mixing zone situated after the expansion step () or in the first pipe () so close to the expansion step () that the chemicals which are added have no time to react with the fibre suspension before the flow enters the expansion step ().