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. 15, 1995
Filed:
Apr. 29, 1994
Applicant:
Inventors:
Reinhold Kammann, Wienhausen, DE;
Helmut Knapwost, Nienhagen, DE;
Manfred Worms, Nienhagen, DE;
Helgo Deeg, Winsen, DE;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
324242 ; 324235 ; 324262 ;
Abstract
A testing method and apparatus detects magnetic discontinuities in a sample of magnetizable material. The apparatus may include an electric motor, a transmission, driven transport wheels, and non-driven transport wheels. Further, the apparatus includes a magnetizing device for inducing a magnetic field in the sample. A sensor unit detects magnetic stray flux from the magnetic field induced in the sample and converts the detected magnetic stray flux into a signal for processing by a signal processor.