(19)

(11)

EP 2 158 396 A1

(12)

(43) Date of publication: 03.03.2010 Bulletin 2010/09 (21) Application number: 07815411.9 (22) Date of filing: 22.10.2007

(51) International Patent Classification (IPC):  F02M 21/02(2006.01) F02M 33/04(2006.01) F02M 31/20(2006.01) F02B 69/04(2006.01) F02B 43/00(2006.01) F02M 53/04(2006.01) (86) International application number: PCT/AU2007/001606 (87) International publication number: WO 2008/052248 (08.05.2008 Gazette 2008/19)

(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 (30) Priority: 31.10.2006 AU 2006906054 (71) Applicants: Turner, Geoffrey Russell Leeton, New South Wales 2705 (AU) Hunt, James Richard Milton Keynes, Buckinghamshire MR8 0PR (GB)	(72) Inventor: HUNT, James Richard Buckinghamshire MR80PR (GB) (74) Representative: Bucks, Teresa Anne  Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)