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. 04, 1992
Filed:
Mar. 15, 1991
Applicant:
Inventors:
James J Hickey, Palos Heights, IL (US);
William L Adamson, Olympia, WA (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
422 62 ; 422 82 ; 422 8205 ; 422 8209 ; 356246 ; 356247 ;
Abstract
An apparatus to continuously measure the level of a water treatment product added to boiler feedwater for prevention of scale formation in boiler tubes, which includes a pump turbidimeter analyzer receiving a sample of the treated boiler feedwater and mixing it with a reagent to produce turbidity in the sample that is photometrically measured to determine product level.