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:
Feb. 15, 1994
Filed:
Sep. 30, 1992
Applicant:
Inventors:
Ross T Gray, Coraopolis, PA (US);
Denis E Hassick, Monroeville, PA (US);
Assignee:
Calgon Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210727 ; 162-5 ; 210734 ; 210735 ; 210928 ;
Abstract
A method for treating an ink-laden wastewater stream comprising adding an effective amount of a melamine-aldehyde polymer to the ink laden stream being treated and segregating at least some portion of the resulting ink-laden agglomerated solids from the treated water.