Air circulation ports in rotary rock bit journal bearing

Details for Australian Patent Application No. 2010245315 (hide)

Owner Sandvik Intellectual Property AB

Inventors Nagaraj, Mahavir; Marcus, Jeremy; Shotton, Vincent W.; Bhoite, Saamer

Agent Griffith Hack

Pub. Number AU-A-2010245315

PCT Pub. Number WO2010/128936

Priority 12/436,710 06.05.09 US

Filing date 4 May 2010

Wipo publication date 11 November 2010

International Classifications

E21B 10/23 (2006.01) Drilling tools

Event Publications

3 November 2011 PCT application entered the National Phase

  PCT publication WO2010/128936 Priority application(s): WO2010/128936

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