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:
Oct. 09, 2012
Filed:
Oct. 24, 2008
Applicants:
Johann Aichinger, Pregarten, AT;
Marc Sabourin, Beavercreek, OH (US);
Jan Hill, Tyringe, SE;
Johann Grossalber, Baden, AT;
Inventors:
Johann Aichinger, Pregarten, AT;
Marc Sabourin, Beavercreek, OH (US);
Jan Hill, Tyringe, SE;
Johann Grossalber, Baden, AT;
Assignee:
Andritz Inc., Glens Falls, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21B 1/02 (2006.01); D21B 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A mechanical pulping method including: defibrating a comminuted cellulosic material; mechanically refining the defibrated cellulosic material in a primary refining step; introducing to the cellulosic material at least one of a chemical agent and a biological during the defibration step or the mechanical refining step, and producing pulp from the refined and defibrated cellulosic material.