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:
May. 25, 2004
Filed:
Aug. 23, 2002
Kari Holopainen, Muurame, FI;
Juha Kinnunen, Jyväskylä, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
Water hydraulics are used in a paper or board machine, in particular in applications requiring lubrication and in the like in which an operating medium is subjected to pressure. A chemical which is used in the stock system (A) of the process is mixed with the water used in water hydraulics before the water is passed to a site of application ( ) in order to raise the viscosity of the water and chemical mixture to a level required by the site of application ( ). The water and chemical mixture is passed ( ) after that to the site of application ( ) and circulated through the same at least once, after which said water and chemical mixture is recovered ( ) and passed to the stock system (A) of the process as diluted to a suitable concentration.