(19)

(11)

EP 2 435 712 A2

(12)

(88) Date of publication A3: 31.03.2011 (43) Date of publication: 04.04.2012 Bulletin 2012/14 (21) Application number: 10720663.3 (22) Date of filing: 13.05.2010

(51) International Patent Classification (IPC):  F15B 11/04(2006.01) (86) International application number: PCT/GB2010/050784 (87) International publication number: WO 2010/136785 (02.12.2010 Gazette 2010/48)

(84) Designated Contracting States: AL 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: 26.05.2009 GB 0908982 (71) Applicant: David Brown Hydraulics Limited Poole, Dorset BH16 5SL (GB)	(72) Inventor: GODFREY, Phil Poole, Dorset BH16 5SL (GB) (74) Representative: Harrison Goddard Foote  Delta House 50 West Nile Street Glasgow G1 2NP 50 West Nile Street Glasgow G1 2NP (GB)