Mechanical lock with pressure balanced floating piston

Details for Australian Patent Application No. 2011220516 (hide)

Owner Baker Hughes Incorporated

Inventors Nevels, David L.; Gambertoglio, Louis M.

Agent Freehills

Pub. Number AU-A-2011220516

PCT Pub. Number WO2011/106614

Priority 12/713,310 26.02.10 US

Filing date 25 February 2011

Wipo publication date 1 September 2011

International Classifications

E21B 34/10 Valve arrangements for boreholes or wells

E21B 34/12 Valve arrangements for boreholes or wells

Event Publications

23 August 2012 PCT application entered the National Phase

  PCT publication WO2011/106614 Priority application(s): WO2011/106614

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