Hydraulic driving system of construction machinery

Details for Australian Patent Application No. 2003261824 (hide)

Owner Hitachi Construction Machinery Co., Ltd.

Inventors Udagawa, Tsutomu; Yagyuu, Takashi; Ochiai, Masami; Sugiyama, Yukihiko; Aihara, Mitsuo; Takiguchi, Kazuo

Agent Davies Collison Cave

Pub. Number AU-B-2003261824

PCT Number PCT/JP03/11039

PCT Pub. Number WO2004/022858

Priority 2002-259582 05.09.02 JP; 2003-297583 21.08.03 JP

Filing date 29 August 2003

Wipo publication date 29 March 2004

Acceptance publication date 17 May 2007

International Classifications

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 11/16 (2006.01) Servomotor systems without provision for follow-up action

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

F15B 21/08 (2006.01) Common features of fluid actuator systems

Event Publications

27 November 2003 Complete Application Filed

  Priority application(s): 2002-259582 05.09.02 JP; 2003-297583 21.08.03 JP

13 May 2004 Application Open to Public Inspection

  Published as AU-B-2003261824

17 May 2007 Application Accepted

  Published as AU-B-2003261824

13 September 2007 Standard Patent Sealed

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