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:
Jul. 21, 1987
Filed:
Sep. 17, 1985
Applicant:
Inventors:
Jerry L Walker, Coraopolis, PA (US);
John D Zupanovich, Pittsburgh, PA (US);
Assignee:
Calgon Corporation, Pittsburgh, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F / ; C02F / ; C09K / ;
U.S. Cl.
CPC ...
422 16 ; 422 11 ; 210750 ; 210757 ; 25218828 ; 252178 ; 25238962 ;
Abstract
A method of inhibiting corrosion due to dissolved oxygen is disclosed, whereby chelant-stabilized sodium erythorbate, alone or in combination with conventional corrosion inhibitors, is added to boiler water to prevent corrosion by reducing dissolved oxygen levels in boiler feedwater.