(19)

(11)

EP 2 225 424 A1

(12)

(43) Date of publication: 08.09.2010 Bulletin 2010/36 (21) Application number: 08849361.4 (22) Date of filing: 13.11.2008

(51) International Patent Classification (IPC):  E04C 3/07(2006.01) E04B 5/10(2006.01) E01C 5/06(2006.01) E04F 11/02(2006.01) (86) International application number: PCT/CA2008/001993 (87) International publication number: WO 2009/062298 (22.05.2009 Gazette 2009/21)

(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 Designated Extension States: AL BA MK RS (30) Priority: 13.11.2007 US 987528 P (71) Applicant: Casata Technologies Inc. Sault St. Marie, ON P6A 5K8 (CA)	(72) Inventors: NACCARATO, John R. Sault St. Marie, Ontario P6A 5K8 (CA) SEVERINI, Joseph A. Sault St. Marie, Ontario P6A 6J8 (CA) (74) Representative: Lunt, Mark George Francis  Harrison Goddard Foote Fountain Precinct Balm Green Sheffield S1 2JA Sheffield S1 2JA (GB)