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. 09, 2001
Filed:
Feb. 17, 1998
Applicant:
Inventors:
Vidar Snekkenes, Karlstad, SE;
Johan Engström, Esbo, SE;
Sven-Erik Ohlsson, Kil, SE;
Per Nyström, Karlstad, SE;
Sören Söderqvist, Karlstad, SE;
Björn Karlsson, Karlstad, SE;
Assignee:
Kvaener Pulping AB, , SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 2/438 ; B01D 3/528 ;
U.S. Cl.
CPC ...
B01D 2/438 ; B01D 3/528 ;
Abstract
A new and improved way of continuously cooking fiber material, wherein temperatures and alkaline levels are controlled to be maintained within specific levels in different zones of the digesting process in order to optimize chemical consumption and heat-economy and at the same time achieve very good pulp properties. The digesting process includes a top separator that separates the transport liquid from the fiber material and permits the fiber material to be exposed to the cooking liquid.