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:
Apr. 14, 1987
Filed:
Dec. 11, 1985
Applicant:
Inventors:
John A Kelly, Woodridge, IL (US);
David A Grattan, LaGrange Highlands, IL (US);
Alfred W Oberhofer, Downers Grove, IL (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C23C / ; C23F / ;
U.S. Cl.
CPC ...
4272556 ; 106 1415 ; 106 1416 ; 422 11 ; 422 16 ;
Abstract
The use of benzo and/or tolyltriazole alone or in combination with neutralizing and filming amines to reduce copper corrosion in boiler condensate systems by feeding the mixture into the main steamheaders.