Floating Gripping Dies for an Automatic Break Out Wrench for a Blasthole Drill

Details for Australian Patent Application No. 2004202455 (hide)

Owner Harnischfeger Technologies, Inc.

Inventors Nelson, Jack W; Boyd, James W

Agent Halford & Co

Pub. Number AU-A-2004202455

Priority 10/610,724 01.07.03 US

Filing date 4 June 2004

Wipo publication date 20 January 2005

Acceptance publication date 23 April 2009

International Classifications

E21B 019/18 Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick

Event Publications

17 June 2004 Complete Application Filed

  Priority application(s): 10/610,724 01.07.03 US

20 January 2005 Application Open to Public Inspection

  Published as AU-A-2004202455

16 June 2005 Amendment Made

  The nature of the amendment is as shown in the statement(s) filed 27 Apr 2005

23 April 2009 Application Accepted

  Published as AU-A-2004202455

20 August 2009 Standard Patent Sealed

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