Microtunnelling system and apparatus

Details for Australian Patent Application No. 2006344700 (hide)

Owner Rex Industrial Services Pty Ltd Harrofam Pty Ltd

Inventors Salins, Andis; Harrison, Stuart

Agent Freehills

Pub. Number AU-A-2006344700

PCT Pub. Number WO2007/143773

Priority 2006903269 16.06.06 AU

Filing date 8 August 2006

Wipo publication date 21 December 2007

International Classifications

E21B 7/08 (2006.01) Special methods or apparatus for drilling

E21B 7/04 (2006.01) Special methods or apparatus for drilling - Directional drilling

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

E21B 7/28 (2006.01) Special methods or apparatus for drilling

E21B 7/30 (2006.01) Special methods or apparatus for drilling

E21B 10/00 (2006.01) Drilling tools

E21B 12/00 (2006.01) Accessories for drilling tools

E21B 17/18 (2006.01) Drilling rods or pipes

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

E21D 9/08 (2006.01) Tunnels - with additional boring or cutting means

Event Publications

8 January 2009 PCT application entered the National Phase

  PCT publication WO2007/143773 Priority application(s): WO2007/143773

29 January 2009 Amendment Made

  The nature of the amendment is as shown in the statement(s) filed 09 Dec 2008

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