Measuring device, rock breaking device and method of measuring stress wave

Details for Australian Patent Application No. 2007206830 (hide)

Owner Sandvik Mining and Construction Oy

Inventors Ihalainen, Heimo; Uitto, Vesa; Keskiniva, Markku; Lekkala, Jukka

Agent Griffith Hack

Pub. Number AU-B-2007206830

PCT Pub. Number WO2007/082997

Priority 20065029 17.01.06 FI

Filing date 16 January 2007

Wipo publication date 26 July 2007

Acceptance publication date 29 September 2011

International Classifications

G01B 7/16 (2006.01) Measuring arrangements characterised by the use of electric or magnetic means - for measuring the deformation in a solid, e.g. by resistance strain gauge

B25D 9/26 (2006.01) Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously

E21B 44/02 (2006.01) Automatic control

G01L 1/14 (2006.01) Measuring force or stress, in general - by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators

G01M 99/00 (2011.01)

Event Publications

24 July 2008 PCT application entered the National Phase

  PCT publication WO2007/082997 Priority application(s): WO2007/082997

29 September 2011 Application Accepted

  Published as AU-B-2007206830

2 February 2012 Standard Patent Sealed

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