(19)

(11)

EP 2 441 093 A2

(12)

(88) Date of publication A3: 03.03.2011 (43) Date of publication: 18.04.2012 Bulletin 2012/16 (21) Application number: 10786486.0 (22) Date of filing: 02.06.2010

(51) International Patent Classification (IPC):  H01L 31/042(2006.01) E04D 13/18(2006.01) (86) International application number: PCT/US2010/001615 (87) International publication number: WO 2010/144118 (16.12.2010 Gazette 2010/50)

(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 SE SI SK SM TR (30) Priority: 10.06.2009 US 456079 (71) Applicant: Gangemi, Ronald J. Grass Valley, CA 95949 (US)	(72) Inventor: Gangemi, Ronald J. Grass Valley, CA 95949 (US) (74) Representative: Powell, Stephen David  Williams Powell Staple Court 11 Staple Inn Buildings London, WC1V 7QH London, WC1V 7QH (GB)