Method for the drilling, in particular percussion or rotary percussion drilling, of holes in soil or rock material and device therefor

Details for Australian Patent Application No. 2010314788 (hide)

Owner DYWIDAG-Systems International GmbH

Inventors Bohm, Karl; Karpellus, Walter

Agent Pizzeys

Pub. Number AU-A-2010314788

PCT Pub. Number WO2011/054020

Priority A1763/2009 06.11.09 AT

Filing date 5 November 2010

Wipo publication date 12 May 2011

International Classifications

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

E21B 17/042 (2006.01) Drilling rods or pipes

E21D 21/00 (2006.01) Anchoring-bolts for roof, floor, or shaft-lining protection

Event Publications

14 June 2012 PCT application entered the National Phase

  PCT publication WO2011/054020 Priority application(s): WO2011/054020

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