Digital closed loop proportional hydraulic pressure controller

Details for Australian Patent Application No. 2009200055 (hide)

Owner Woodward Governor Company

Inventors Greeb, Kevin E.

Agent Pizzeys

Pub. Number AU-A-2009200055

Priority 12/024,148 01.02.08 US

Filing date 7 January 2009

Wipo publication date 20 August 2009

International Classifications

G05D 16/20 (2006.01) Control of fluid pressure - characterised by the use of electric means

G05B 19/05 (2006.01) Programme-control systems - Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts

Event Publications

29 January 2009 Complete Application Filed

  Priority application(s): 12/024,148 01.02.08 US

20 August 2009 Application Open to Public Inspection

  Published as AU-A-2009200055

24 March 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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