(19)

(11)

EP 1 485 542 A1

(12)

(43) Date of publication: 15.12.2004 Bulletin 2004/51 (21) Application number: 02709861.5 (22) Date of filing: 18.03.2002

(51) International Patent Classification (IPC)7: E04B 1/24 (86) International application number: PCT/US2002/008465 (87) International publication number: WO 2003/080951 (02.10.2003 Gazette 2003/40)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (71) Applicant: Simmons, Robert J. Hayward, CA 94542 (US)	(72) Inventor: Simmons, Robert J. Hayward, CA 94542 (US) (74) Representative: Gilmour, David Cedric Franklyn et al POTTS, KERR & CO.15 Hamilton Square BirkenheadMerseyside CH41 6BR BirkenheadMerseyside CH41 6BR (GB)