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:
Sep. 10, 1996
Filed:
Mar. 25, 1994
Delmar L Logue, Herrick, IL (US);
Other;
Abstract
A polar coordinates sensor probe, having a plurality of circularly arranged pick-up poles driven by a rotating magnetic field originating in a hollow toroid core, for detecting the reflected rotating eddy current pattern in material (both ferrous and non-ferrous) surrounding fastener holes, wherein the flaw is detected by means of mutual phase-amplitude comparison and adjacent pick-up pole signal phase deviation. The second embodiment having an isolated multi-pole pick-up core, picking up a rotating figure 8 eddy current pattern. Also embodiments utilizing Hall effect and magnetoresistive devices with the rotating magnetic field for flaw detection.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile