(19)

(11)

EP 2 265 802 A1

(12)

(43) Date of publication: 29.12.2010 Bulletin 2010/52 (21) Application number: 09758812.3 (22) Date of filing: 02.03.2009

(51) International Patent Classification (IPC):  F01K 7/34(2006.01) (86) International application number: PCT/US2009/035630 (87) International publication number: WO 2009/148649 (10.12.2009 Gazette 2009/50)

(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 TR Designated Extension States: AL BA RS (30) Priority: 28.02.2008 US 32233 (71) Applicant: Ferguson, Roger Des Moines, IA 50312 (US)	(72) Inventor: Ferguson, Roger Des Moines, IA 50312 (US) (74) Representative: Evans, Jacqueline Gail Victoria  Greaves Brewster LLP Indigo House Cheddar Business Park Wedmore Road Cheddar, Somerset BS27 3EB Cheddar, Somerset BS27 3EB (GB)