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:
Jan. 10, 2023
Filed:
Mar. 15, 2021
Pica Pipeline Inspection and Condition Analysis Corporation, Edmonton, CA;
David E. Russell, Edmonton, CA;
David Burton, Edmonton, CA;
PICA Pipeline Inspection and Condition Analysis Corporation, Edmonton, CA;
Abstract
An in-line inspection (ILI) toolfor use inspecting pipelines includes a plurality of collapsible guide centralizersconfigured and sized to correspond to the inside diameter of the pipeline being inspected. The guide centralizesinclude wheelsroll along the inside wall of the pipeline being inspected to maintain the guide centralizers 'centered' within the pipeline. A collapsible exciter unit centralizeris positioned between collapsible guide centralizersto 'center' the exciter unit centralizer relative to the interior of the pipeline. The exciter unit centralizergenerates signals in the form of an alternating magnetic field that travel along the wall of the pipeline which in turn generates eddy current signals. The eddy current signals undergo a change if a discontinuity in the pipeline is encountered by the inspection tool, which signal change or deviation is detected by a collapsible detector unit centralizerpositioned between the collapsible guide centralizers