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. 21, 1979
Filed:
Oct. 25, 1977
Applicant:
Inventors:
Jacky Vanhumbeeck, Brugge, BE;
Christiaan Vandenbossche, Zwijnaarde, BE;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; C25D / ;
U.S. Cl.
CPC ...
2323 / ; 2323 / ; 2323 / ; 422 75 ; 422110 ; 204 / ;
Abstract
A technique for the quantitative monitoring of a nonionic surfactant, such as nonylphenolpolyglycolether, in an acid tinning bath for the production of shiny, pore-free coatings on components. A measured amount of bath fluid (a bath specimen) is diluted with distilled water and mixed with sulfuric acid, and this mixture is then immediately titrated with a tannic acid solution until opalescence occurs.