(19)

(11)

EP 2 115 236 A1

(12)

(43) Date of publication: 11.11.2009 Bulletin 2009/46 (21) Application number: 08729153.0 (22) Date of filing: 06.02.2008

(51) International Patent Classification (IPC):  E04D 13/18(2006.01) (86) International application number: PCT/US2008/053169 (87) International publication number: WO 2008/098048 (14.08.2008 Gazette 2008/33)

(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 MT NL NO PL PT RO SE SI SK TR (30) Priority: 08.02.2007 US 888875 P 20.07.2007 US 780721 (71) Applicant: Luma Resources, LLC Rochester Hills, MI 48309 (US)	(72) Inventor: ALLEN, Gary, E. Rochester, MI 48306 (US) (74) Representative: Dauncey, Mark Peter et al Marks & Clerk LLP Sussex House 83-85 Mosley Street Manchester M2 3LG Manchester M2 3LG (GB)