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:
Jul. 16, 2019
Filed:
Jul. 14, 2017
Applicant:
Southwest Research Institute, San Antonio, TX (US);
Inventors:
Sergey A Vinogradov, San Antonio, TX (US);
Charles Duffer, San Antonio, TX (US);
Glenn M. Light, San Antonio, TX (US);
Assignee:
SOUTHWEST RESEARCH INSTITUTE, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 29/24 (2006.01);
U.S. Cl.
CPC ...
G01N 29/2412 (2013.01); G01N 2291/0258 (2013.01); G01N 2291/044 (2013.01); G01N 2291/0426 (2013.01); G01N 2291/0427 (2013.01); G01N 2291/267 (2013.01); G01N 2291/2636 (2013.01);
Abstract
Various embodiments of magnetostrictive transducers (MsTs) for detecting defects in a tubular structure comprise one or more AC coils and one or more magnets. The transducer has a pair of coils (or two coil elements), which are spaced 180 degrees apart relative to the circumference of the tubular structure. Each MsT is selectively operable or configurable so that it may generate either torsional or flexural guided waves.