(19)

(11)

EP 2 542 734 A2

(12)

(88) Date of publication A3: 22.12.2011 (43) Date of publication: 09.01.2013 Bulletin 2013/02 (21) Application number: 11751094.1 (22) Date of filing: 24.02.2011

(51) International Patent Classification (IPC):  E04C 5/16(2006.01) E04C 5/18(2006.01) (86) International application number: PCT/US2011/026070 (87) International publication number: WO 2011/109220 (09.09.2011 Gazette 2011/36)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 02.03.2010 US 309783 P (71) Applicant: Alfonso, Jorge R. Austin, TX 78701 (US)	(72) Inventor: Alfonso, Jorge R. Austin, TX 78701 (US) (74) Representative: Miller Sturt Kenyon  9 John Street London WC1N 2ES London WC1N 2ES (GB)