(19)

(11)

EP 2 425 137 A2

(12)

(88) Date of publication A3: 23.12.2010 (43) Date of publication: 07.03.2012 Bulletin 2012/10 (21) Application number: 10712149.3 (22) Date of filing: 31.03.2010

(51) International Patent Classification (IPC):  F04C 25/02(2006.01) F04C 23/00(2006.01) (86) International application number: PCT/GB2010/050572 (87) International publication number: WO 2010/125368 (04.11.2010 Gazette 2010/44)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 29.04.2009 GB 0907298 (71) Applicant: Edwards Limited Manor Royal Crawley West Sussex RH10 9LW (GB)	(72) Inventor: OKOROAFOR, Emmanuel, Uzoma West Sussex BN43 6PY (GB) (74) Representative: Clark, Charles Robert  Edwards Limited Intellectual Property Manor Royal Crawley West Sussex RH10 9LW Crawley West Sussex RH10 9LW (GB)