(19)
(11) EP 1 576 292 A2

(12)

(88) Date of publication A3:
05.08.2004

(43) Date of publication:
21.09.2005 Bulletin 2005/38

(21) Application number: 03786101.0

(22) Date of filing: 09.12.2003
(51) International Patent Classification (IPC)7F04D 27/00, F04D 19/04, F04D 27/02
(86) International application number:
PCT/GB2003/005375
(87) International publication number:
WO 2004/055376 (01.07.2004 Gazette 2004/27)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 17.12.2002 GB 0229356

(71) Applicant: The BOC Group plc
Surrey GU20 6HJ (GB)

(72) Inventor:
  • Schofield, Nigel Paul
    Horsham,West Sussex RH12 2NT (GB)

(74) Representative: Booth, Andrew Steven et al
The BOC Group plc, Chertsey Road
Windlesham, Surrey GU20 6HJ
Windlesham, Surrey GU20 6HJ (GB)

   


(54) VACUUM PUMPING ARRANGEMENT