Wear sleeve
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United States of America Patent
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Apr 18, 2006
Grant Date -
Sep 9, 2004
app pub date -
May 29, 2002
filing date -
Jun 1, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Wear sleeve for a drill pipe coupling (10), where a sleeve (18) is arranged in a drill pipe coupling on one of the two adjoining, coupled together drill pipes (12, 14) in a drill string, where the sleeve has an outer diameter that is larger than the outer diameter of the drill pipe coupling (10) and which comprises an inner continuous bore. The inner bore comprises a threaded section (22a) arranged for joining together with a corresponding outer threaded section (22) at the one end of the drill pipe coupling (10), whereupon the sleeve (18) is arranged to be securely fastened in the drill pipe coupling to form a wear sleeve.
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