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. 19, 2000
Filed:
Oct. 16, 1997
Applicant:
Inventors:
Roderick Donald Raslack, Thunder Bay, CA;
Charles Theodore Gammon, Acworth, GA (US);
Reginald James Christmas, Stoney Creek, CA;
Assignee:
Vinings Industries, Inc., Kennesaw, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21C / ;
U.S. Cl.
CPC ...
162 60 ; 162 72 ; 162D / ;
Abstract
Disclosed is a process for washing or otherwise treating paper pulp. More specifically, a multi-stage paper pulp washing process including the use of a defoamer/emulsifier mixture which is adjusted at a paper manufacturing site for each stage. The same defoamer may be used in each washing stage. However, solubility is adjusted at the paper manufacturing site by adding a small amount of emulsifier to the defoamer as appropriate for the particular stage.