(19)

(11)

EP 1 740 781 A2

(12)

(43) Date of publication: 10.01.2007 Bulletin 2007/02 (21) Application number: 04750844.5 (22) Date of filing: 27.04.2004

(51) International Patent Classification (IPC):  E04B 1/00(2006.01) (86) International application number: PCT/US2004/013139 (87) International publication number: WO 2005/108692 (17.11.2005 Gazette 2005/46)

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