Valve for hydraulic props of shield-type support frames, and shield-type support frame

Details for Australian Patent Application No. 2004236389 (hide)

Owner Bucyrus DBT Europe GmbH

Inventors Peters, Bernd; Dettmers, Michael

Agent Pizzeys

Pub. Number AU-B-2004236389

PCT Pub. Number WO2004/099628

Priority 203 09 693.2 23.06.03 DE; 203 07 245.6 08.05.03 DE

Filing date 5 May 2004

Wipo publication date 18 November 2004

Acceptance publication date 23 April 2009

International Classifications

F15B 13/00 (2006.01) Details of servomotor systems

E21D 23/16 (2006.01) Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyers, mining machines, or guides therefor

F15B 13/01 (2006.01) Details of servomotor systems

F15B 13/08 (2006.01) Details of servomotor systems

F15B 15/14 (2006.01) Fluid-actuated devices for displacing a member from one position to another

Event Publications

8 December 2005 PCT application entered the National Phase

  PCT publication WO2004/099628 Priority application(s): WO2004/099628

9 April 2009 Alteration of Name

  The name of the applicant has been altered to Bucyrus DBT Europe GmbH

23 April 2009 Application Accepted

  Published as AU-B-2004236389

20 August 2009 Standard Patent Sealed

2 August 2012 Application for Amendment

  The nature of the amendment is: Amend the patentee from Bucyrus DBT Europe GmbH to Caterpillar Global Mining Europe GmbH . Address for service in Australia - Pizzeys Patent and Trade Mark Attorneys Level 20 324 Queen Street Brisbane QLD 4000

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