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:
Jul. 31, 1990
Filed:
Mar. 26, 1987
Applicant:
Inventors:
C Bertil Stromberg, Glens Falls, NY (US);
Joseph R Phillips, Glens Falls, NY (US);
Louis O Torregrossa, Glens Falls, NY (US);
Assignee:
Kamyr, Inc., Glen Falls, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C / ; D21C / ; D21F / ;
U.S. Cl.
CPC ...
162 60 ; 162 88 ; 162190 ;
Abstract
Method and apparatus for reducing contamination in processed pulp and in white water effluent discharged from a pulp dryer or paper making mill. The system includes multiple pulp bleaching and washing stages wherein white water effluent discharge from the dryer or paper making mill is fed to the next-to-last washing stage and fresh water is supplied to the last washing stage.