Torque controller of three pump system for construction machinery

Details for Australian Patent Application No. 2007330245 (hide)

Owner Hitachi Construction Machinery Co., Ltd.

Inventors Nakamura, Kazunori; Ishikawa, Kouji; Ariga, Nobuei; Narazaki, Akihiro

Agent Davies Collison Cave

Pub. Number AU-B-2007330245

PCT Pub. Number WO2008/068938

Priority 2006-330646 07.12.06 JP

Filing date 7 September 2007

Wipo publication date 12 June 2008

Acceptance publication date 29 April 2010

International Classifications

F15B 11/02 (2006.01) Servomotor systems without provision for follow-up action

E02F 9/22 (2006.01) Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups - Hydraulic or pneumatic drives

F15B 11/17 (2006.01) Servomotor systems without provision for follow-up action

Event Publications

24 July 2008 PCT application entered the National Phase

  PCT publication WO2008/068938 Priority application(s): WO2008/068938

29 April 2010 Application Accepted

  Published as AU-B-2007330245

26 August 2010 Standard Patent Sealed

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