Downhole device
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United States of America Patent
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Jun 12, 2012
Grant Date -
Feb 10, 2011
app pub date -
Feb 22, 2010
filing date -
Aug 10, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A stop collar or like device is formed in one piece to have a portion for a tool to be attached. Movement of the tool allows the collar to be drawn tightly into engagement onto a pipe or other tubular member. A bow centraliser has alternate bows longitudinally offset to reduce initial insertion force. The centraliser may be formed to have end bands of the type used in the stop collar.
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