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. 18, 1998
Filed:
Jul. 25, 1997
Applicant:
Inventor:
Robert L Wetegrove, Winfield, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356318 ; 2504581 ; 356244 ; 356417 ;
Abstract
A method and apparatus for detecting, measuring and monitoring films formed on exposed surfaces of a fluid system caused by microorganisms present in the fluid system. Pursuant to the present invention, a fluorometer is utilized to irradiate an exposed surface with light of the appropriate magnitude and intensity which results in an excitation of the NAD(P)H and ATP and other fluorescent molecules contained within microorganisms and subsequent fluorescent emission from the microorganisms. As a result, films caused by the presence of microorganisms in the fluid system can be detected and monitored.