(19)

(11)

EP 1 444 409 A1

(12)

(43) Date of publication: 11.08.2004 Bulletin 2004/33 (21) Application number: 01971566.3 (22) Date of filing: 13.09.2001

(51) International Patent Classification (IPC)7: E04B 2/70 (86) International application number: PCT/CA2001/001314 (87) International publication number: WO 2003/023158 (20.03.2003 Gazette 2003/12)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (71) Applicant: LITTLER, Robert, Charles Mission, British Columbia (CA)	(72) Inventor: LITTLER, Robert, Charles Mission, British Columbia (CA) (74) Representative: Loven, Keith James  Loven & CoQuantum House30 Tentercroft Street Lincoln LN5 7DB Lincoln LN5 7DB (GB)