KNUCKLE-JOINTED LANCE FOR INTERNAL CLEANING AND INSPECTION OF TUBULARS
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United States of America Patent
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Issued Date -
Apr 3, 2014
app pub date -
Mar 15, 2013
filing date -
Sep 28, 2012
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Abstract
A knuckle jointed lance (KJL) including a plurality of KJL segments concatenated into a string thereof. A tool head is connected to one end of the lance. Each KJL segment has a hollow body, open at both ends, with a generally trapezoidal profile. The string further comprises a plurality of articulated joints connecting neighboring KJL segments together at about a mid-point between the top side and base side of their respective trapezoidal profiles. Embodiments of the articulated joints include lug pins on the end of one of a neighboring pair of KJL segments connected to corresponding lug holes on the end of the other of the neighboring pair.
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