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:
Dec. 12, 2000
Filed:
Oct. 29, 1997
Applicant:
Inventors:
Johan Engstrom, Karlstad, SE;
Vidar Snekkenes, Karlstad, SE;
Krister Olsson, Karlstad, SE;
Mikael Lindstrom, Stockholm, SE;
Christofer Lindgren, Stockholm, SE;
Soren Gustavsson, Karlstad, SE;
Assignee:
Kvaerner Pulping AB, , SE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21C / ;
U.S. Cl.
CPC ...
162 17 ; 162 19 ; 162 29 ; 162 41 ;
Abstract
This invention relates to 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, achieving very good pulp properties.