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:
Mar. 23, 1982
Filed:
Mar. 12, 1980
Adolf Mlot-Fijalkowski, Lincolnwood, IL (US);
Kenneth P Borrows, Schaumburg, IL (US);
Magnaflux Corporation, Chicago, IL (US);
Abstract
A method for testing a magnetizable workpiece for flaws by the magnetic particle inspection method wherein a coating of finely divided, hydrophobic particles is electrostatically applied onto the surface of a workpiece to be tested after which an aqueous suspension of magnetizable particles is applied over the resulting coating. The magnetized workpiece is then inspected for deposits of magnetizable particles which have become lodged in the flaws. The hydrophobic nature of the coating repels the water from the suspension, and permits the indications to appear promptly after application of the magnetizable particle suspension.