DTH-hammer drilling device and overburden drilling method

Details for Australian Patent Application No. 2006256971 (hide)

Owner Geomechanik Wasser-und Umwelttechnik GmbH

Inventors Fleischmann, Frank; Abt, Johannes

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-A-2006256971

PCT Pub. Number WO2006/131339

Priority 05012538.4 10.06.05 EP

Filing date 7 June 2006

Wipo publication date 14 December 2006

International Classifications

E21B 21/12 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

E21B 7/20 (2006.01) Special methods or apparatus for drilling - Driving or forcing casings or pipes into boreholes, e.g. sinking

E21B 33/126 (2006.01) Sealing or packing boreholes or wells

Event Publications

31 January 2008 PCT application entered the National Phase

  PCT publication WO2006/131339 Priority application(s): WO2006/131339

19 January 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(d). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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