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:
Mar. 22, 2011
Filed:
Jan. 20, 2005
Applicant:
Brian S. Johnson, Warrenville, IL (US);
Inventor:
Brian S. Johnson, Warrenville, IL (US);
Assignee:
Nalco Company, Naperville, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of monitoring residual treating agent in treated water wherein fluorescent tracers are used to determine the concentration of treating agent in the water at two different treating agent dosages and the difference in the measured concentrations of the fluorescent tracer at the respective doses are correlated with the residual concentration of the treating agent. The fluorescence response at the different treating agent dosages is used to determine whether the system is overdosed or underdosed on a continuous basis and to control treating agent dose accordingly.