Control valve in a percussion device and a method comprising a closed pressure space at the end position of the piston

Details for Australian Patent Application No. 2004213190 (hide)

Owner Sandvik Tamrock Oy

Inventors Koskimaki, Antti; Keskiniva, Markku; Ahola, Erkki; Maki, Jorma

Agent Griffith Hack

Pub. Number AU-B-2004213190

PCT Pub. Number WO2004/073930

Priority 20030263 21.02.03 FI

Filing date 23 February 2004

Wipo publication date 2 September 2004

Acceptance publication date 6 November 2008

International Classifications

B25D 9/18 (2006.01) Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously

B25D 9/20 (2006.01) Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously

Event Publications

11 August 2005 PCT application entered the National Phase

  PCT publication WO2004/073930 Priority application(s): WO2004/073930

6 November 2008 Application Accepted

  Published as AU-B-2004213190

29 January 2009 Alteration of Name

  The name of the applicant has been altered to Sandvik Mining and Construction Oy

5 March 2009 Standard Patent Sealed

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