(19)

(11)

EP 2 501 859 A2

(12)

(88) Date of publication A3: 29.09.2011 (43) Date of publication: 26.09.2012 Bulletin 2012/39 (21) Application number: 10832147.2 (22) Date of filing: 18.11.2010

(51) International Patent Classification (IPC):  E01F 7/02(2006.01) E04H 9/14(2006.01) E01F 7/04(2006.01) (86) International application number: PCT/US2010/057136 (87) International publication number: WO 2011/063068 (26.05.2011 Gazette 2011/21)

(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 RS SE SI SK SM TR (30) Priority: 18.11.2009 US 262398 P (71) Applicant: Raczkowski, Raymond Lincoln Park, Michigan 48146 (US)	(72) Inventor: Raczkowski, Raymond Lincoln Park, Michigan 48146 (US) (74) Representative: Burrows, Anthony Gregory  Business Centre West Avenue One, Business Park Letchworth Garden City Hertfordshire SG6 2HB Letchworth Garden City Hertfordshire SG6 2HB (GB)