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:
Jun. 06, 1995
Filed:
Feb. 04, 1994
Applicant:
Inventors:
Assignee:
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73643 ;
Abstract
An electrodynamic ultrasonic transducer includes a housing to be placed against a workpiece surface to be tested. A magnet system is arranged in the housing in the vicinity of the workpiece surface to be tested. A transducer coil system is arranged between the magnet system and the workpiece surface. The housing is of a non-magnetic, electrically conducting material, and the housing wall has, in a region receiving the magnet system, segment-like recesses. Circuit closing plates are removably mounted in the recesses for ensuring a magnetic flux between the workpiece surface and the magnet system.