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:
Mar. 23, 2010
Filed:
Jun. 22, 2007
Gary Lane Burkhardt, Adkins, TX (US);
Alfred Eugene Crouch, San Antonio, TX (US);
Albert Joseph Parvin, Jr., San Antonio, TX (US);
Ronald Herbert Peterson, Helotes, TX (US);
Todd Hegert Goyen, San Antonio, TX (US);
Richard Franklin Tennis, San Antonio, TX (US);
Gary Lane Burkhardt, Adkins, TX (US);
Alfred Eugene Crouch, San Antonio, TX (US);
Albert Joseph Parvin, Jr., San Antonio, TX (US);
Ronald Herbert Peterson, Helotes, TX (US);
Todd Hegert Goyen, San Antonio, TX (US);
Richard Franklin Tennis, San Antonio, TX (US);
Southwest Research Institute, San Antonio, TX (US);
Abstract
The present disclosure relates to a device and method for pipeline inspection, The inspection device may include an exciter coil capable of providing an alternating current magnetic field and producing eddy currents. A plurality of sensors may then be provided which are capable of sensing a magnetic field produced by the eddy currents and the sensors may be engaged with a sensor shoe. The sensors may then be capable of being positioned at a first distance Dwith respect to an inner pipe wall surface and capable of providing coupling to the magnetic field produced by the eddy currents. The sensor shoe may also be capable of retracting to a second distance D, wherein D<D. The sensor shoe may be connected to a sensor support arm wherein the support arm may be pivotably attached to a fixed hub and to a control arm which control arm may then be pivotably attached to a driven hub.