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:
Aug. 14, 2001
Filed:
Jan. 30, 1998
Applicant:
Inventors:
Brian Creber, Dunrobin, CA;
Brian Foody, Ottawa, CA;
Patrick J. Foody, Ottawa, CA;
Jeffrey S. Tolan, Ottawa, CA;
Assignee:
Iogen Corporation, Ottawa, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 7/14 ;
U.S. Cl.
CPC ...
D21C 7/14 ;
Abstract
The present invention relates to a device and method for measuring the bleach requirement and bleachability of pulp in a pulp mill. The invention enables pulp mill operators to better control bleach plants. In one aspect, the invention comprises a system and method for rapid bleaching of the pulp, and measuring the rapid bleached brightness and lignin content of the pulp. In another aspect, the invention comprises an optical system for use in practicing embodiments of this invention.