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. 20, 1993
Filed:
Aug. 19, 1991
Manfried Schoenen, Mettmann, DE;
Harri Haacke, Ratingen-Vokarday, DE;
Hans-Jurgen Bathmann, Moers, DE;
Bernhard Karbach, Erfstadt-Friesheim, DE;
Gerd Kauth, Cologne, DE;
Reinhard Prause, Augustin, DE;
Ottokar Patzke, Erfstadt-Liblar, DE;
Mannesmann AG, Dusseldorf, DE;
Krautkramer GmbH & Co., Hurth, DE;
Abstract
An ultrasound testing device for the non-destructive testing of a workpiece wherein at least three testing heads are disposed on a testing head carrier, and the testing heads emit sound waves which converge at one or more intersections in an area of the workpiece so as to detect defects and determine the wall thickness. Operationally, the number of intersections is one less than the number of testing heads, and the separation between the sound waves is chosen so as to avoid the disturbances associated with utilization of oppositely situated testing heads. In addition, the device uses a flow medium to couple the testing heads to the surface of the workpiece.