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:
Oct. 04, 2022
Filed:
Apr. 10, 2020
Tdw Delaware, Inc., Wilmington, DE (US);
Todd R. Mendenhall, South Jordan, UT (US);
David C. Rees, Ocoee, FL (US);
TDW Delaware, Inc., Wilmington, DE (US);
Abstract
Embodiments of an inline inspection ('ILI') tool () of this disclosure include a plurality of composite field systems () arranged circumferentially about the body of the ILI tool, each composite field system including multiple magnetic circuits () to produce a composite or resultant angled field © relative to the target, along with a sensor array or circuit () configured for magnetic flux leakage ('MFL') or magnetostrictive electro-magnetic acoustic transducers (“EMAT”) implementations. In embodiments, the pole magnets () of the magnetic circuits are oriented in the axial direction of the tool body rather than in the direction of the resultant angled field. The same is true of the sensors (). This composite field system approach provides options to design geometries that were not previously possible in prior art single-circuit helical MFL designs and EMAT designs.