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:
Dec. 11, 2018
Filed:
Jan. 03, 2017
Randel Brandstrom, Edmonton, CA;
Randel Brandstrom, Edmonton, CA;
Other;
Abstract
An apparatus and method for detection of imperfections by detecting changes in magnetic flux of a magnetized metal body includes a housing carrying first and second magnets for magnetizing the metal body that are located adjacent opposite ends of the housing and a conductor member intermediate the first and second magnets that has a forward end adjacent the metal body and extends outwardly from the metal body to an outer end of the conductor member. At this outer end there is provided a third magnet directing its magnetic field into the conductor member, and at the forward end of the conductor member there is provided a magnetic field sensor to detect changes in magnetic field in the metal body generated by the imperfections as the housing is moved in scanning movement along the metal body.