(19)
(11) EP 1 700 038 A2

(12)

(43) Date of publication:
13.09.2006 Bulletin 2006/37

(21) Application number: 04806203.8

(22) Date of filing: 23.12.2004
(51) International Patent Classification (IPC): 
F04C 2/00(2006.01)
(86) International application number:
PCT/GB2004/005407
(87) International publication number:
WO 2005/061896 (07.07.2005 Gazette 2005/27)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 23.12.2003 GB 0329839

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

(72) Inventors:
  • LIU, Michael Chung Kau
    Burgess Hill, West Sussex RH15 9TT (GB)
  • DOWDESWELL, Stephen
    Burgess Hill, West Sussex RH15 9TT (GB)
  • SCHOFIELD, Nigel Paul
    Burgess Hill, West Sussex RH15 9TT (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 PUMP