Device for circulating sealing gas for mechanical dry seals of a centrifugal compressor at times when the machine is stationary and pressurized

Details for Australian Patent Application No. 2003261506 (hide)

Owner Nuovo Pignone Holding S.P.A.

Inventors Meucci, Stefano

Agent Davies Collison Cave

Pub. Number AU-B-2003261506

Priority MI2002A 002401 13.11.02 IT

Filing date 6 November 2003

Wipo publication date 3 June 2004

Acceptance publication date 19 February 2009

International Classifications

F04D 29/12 (2006.01) Details, component parts, or accessories

F04B 9/133 (2006.01) Piston machines or pumps characterised by the driving or driven means to or from their working members

F04B 17/00 (2006.01) Pumps characterised by combination with, or adaptation to, specific driving engines or motors

F04B 31/00 (2006.01) Free-piston pumps specially adapted for elastic fluids

F04B 35/01 (2006.01) Piston pumpsspecially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for

F04D 29/14 (2006.01) Details, component parts, or accessories

F16J 15/40 (2006.01) Sealings - by means of fluid

Event Publications

20 November 2003 Complete Application Filed

  Priority application(s): MI2002A 002401 13.11.02 IT

12 February 2004 Amendment Made

  The nature of the amendment is: Amend the invention title to read Device for circulating sealing gas for mechanical dry seals of a centrifugal compressor at times when the machine is stationary and pressurized. 2004

3 June 2004 Application Open to Public Inspection

  Published as AU-B-2003261506

19 February 2009 Application Accepted

  Published as AU-B-2003261506

18 June 2009 Standard Patent Sealed

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