Core drilling tools with retractably lockable driven latch mechanisms

Details for Australian Patent Application No. 2010339878 (hide)

Owner Longyear TM, Inc.

Inventors Drenth, Christopher L.; Iondov, George; Ibrahim, George

Agent Cotters

Pub. Number AU-A-2010339878

PCT Pub. Number WO2011/084589

Priority 61/287,106 16.12.09 US; 12/968,127 14.12.10 US; 12/898,878 06.10.10 US

Filing date 16 December 2010

Wipo publication date 14 July 2011

International Classifications

E21B 25/02 Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors

E21B 25/10 Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors

Event Publications

5 July 2012 PCT application entered the National Phase

  PCT publication WO2011/084589 Priority application(s): WO2011/084589

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