Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Andrew Phillip Churchill0
Date of Patent
July 12, 2011
0Patent Application Number
123047320
Date Filed
June 11, 2007
0Patent Primary Examiner
Patent abstract
A method of top-filling a drill pipe string comprises injecting fluid into the upper end of the string. Apparatus for use in top-filling a drill pipe string comprises an injector adapted to co-operate with the upper end of a drill pipe string, whereby fluid may be pumped through the injector and into the string.
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