(19)

(11)

EP 2 057 400 A1

(12)

(43) Date of publication: 13.05.2009 Bulletin 2009/20 (21) Application number: 07733709.5 (22) Date of filing: 23.05.2007

(51) International Patent Classification (IPC):  F16L 27/12(2006.01) F16L 25/12(2006.01) (86) International application number: PCT/GB2007/050288 (87) International publication number: WO 2008/020244 (21.02.2008 Gazette 2008/08)

(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 LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 14.08.2006 GB 0616160 (71) Applicant: Lloyd-Hazlegreaves, Michael Prenton CH43 2HB (GB)	(72) Inventors: LLOYD-HAZLEGREAVES, Michael Prenton Wirral Merseyside CH43 2HB (GB) SERGISON, David Prenton Merseyside CH42 6RB (GB) (74) Representative: Gregory, Robert John H.  W.P. Thompson & Co. Coopers Building Church Street Liverpool L1 3AB Liverpool L1 3AB (GB)