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:
Feb. 18, 1992
Filed:
Sep. 10, 1990
Applicant:
Inventors:
Assignee:
NKK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01R / ;
U.S. Cl.
CPC ...
324227 ; 73159 ; 324242 ; 324261 ; 324262 ; 340675 ;
Abstract
A magnetic defect detector having a pair of rotatable cylinders made of nonmagnetic material which pinch a running steel strip therebetween, two pairs of bearings being engaged with the end parts of the pair of cylinders. A pair of stationary shafts are respectively housed in the cylinders, the end parts of which are engaged with the bearings. A yoke is housed in one of the cylinders, the free ends of which are placed near to the pinched strip, and a magnetizing coil surrounds the yoke. At least one sensor is housed in the other of the cylinders, and it is placed near to the pinched strip.