(19)

(11)

EP 2 252 767 A1

(12)

(43) Date of publication: 24.11.2010 Bulletin 2010/47 (21) Application number: 09703933.3 (22) Date of filing: 23.01.2009

(51) International Patent Classification (IPC):  F01B 29/10(2006.01) F02G 1/04(2006.01) (86) International application number: PCT/US2009/031863 (87) International publication number: WO 2009/094559 (30.07.2009 Gazette 2009/31)

(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: 23.01.2008 US 22838 (71) Applicant: Johnston, Barry Woods Baltimore, MD 21207 (US)	(72) Inventor: Johnston, Barry Woods Baltimore, MD 21207 (US) (74) Representative: Ribeiro, James Michael  Withers & Rogers LLP Goldings House 2 Hays Lane London SE1 2HW London SE1 2HW (GB)