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. 27, 1990
Filed:
Jun. 13, 1988
Rainer Trampert, Oftersheim, DE;
Pfaudler-Werke AG, Schwetzingen, DE;
Abstract
A method and a measuring device for localizing a damage in a dielectric corrosion resistant layer of a pipe line are described, especially for an enameled pipe line, through which an electrolytically conducting fluid is passed. Localization is achieved by performing a potential difference measurement between two electrodes arranged at the begining and at the end of a supervised region along the length of the pipe line, to which preferably a constant current source is connected, the positive terminal of which is connected with the carrier material of the pipe line and the negative terminal of which is connected with the two electrodes. Preverably a calibration is performed by means of an additional electrode, which can be connected to the measurement region.