Title: Accelerometer pig

Abstract: A pipeline pig adapted to carry inspection components to determine flaws in a pipeline wall arising from corrosion, pitting, gouges, hard spots, scratches, metallurgical anomalies and dents causing out of round conditions is equipped with an accelerometer. The accelerometer is adapted to provide an electrical signal indicative of acceleration and deceleration in the direction parallel to the axis of the pipeline. By correlation of signals recorded by the flaw detection equipment with signals recorded from the accelerometer, dents may be readily identified.

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Inventors: Porter, Patrick C. (Rexdale, CA, US)

Application Number: 631934
Filing Date: 1975-11-14
Publication_date: 1976-08-10
Assignee: Trans Canada Pipelines Limited (Toronto, CA)
Primary Class(es): 73/866.5 73/105
Other Classes:
US Patent Ref:

2884624	Apr, 1959	Dean et al.	73/432.
3495546	Feb, 1970	Brown et al.	73/432.
3786684	Jan, 1974	Wiers	73/432.

Other Refs:
Primary Examiner: Myracle, Jerry W.
Assistant Examiner:
Attorney: