Down-the-hole drill hammer having a reverse exhaust system and segmented chuck assembly

Details for Australian Patent Application No. 2010322100 (hide)

Owner Center Rock Inc.

Inventors Lyon, Leland H.; Lay, Warren Thomas

Agent Pizzeys

Pub. Number AU-A-2010322100

PCT Pub. Number WO2011/062925

Priority 12/621,155 18.11.09 US

Filing date 17 November 2010

Wipo publication date 26 May 2011

International Classifications

E21B 1/38 (2006.01) Methods or apparatus for drilling

E21B 4/06 (2006.01) Drives for drilling, used in the borehole

E21B 10/36 (2006.01) Drilling tools - Percussion drill bits

Event Publications

3 May 2012 PCT application entered the National Phase

  PCT publication WO2011/062925 Priority application(s): WO2011/062925

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