(19)

(11)

EP 2 174 145 A1

(12)

(43) Date of publication: 14.04.2010 Bulletin 2010/15 (21) Application number: 08783305.9 (22) Date of filing: 01.08.2008

(51) International Patent Classification (IPC):  G01N 37/00(2006.01) G01N 27/12(2006.01) G01N 19/00(2006.01) E04B 1/62(2006.01) (86) International application number: PCT/CA2008/001394 (87) International publication number: WO 2009/018650 (12.02.2009 Gazette 2009/07)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 03.08.2007 CA 2596212 (71) Applicant: Detec Systems LLC. Tacomah WA 98402 (US)	(72) Inventor: VOKEY, David E. Sidney, British Columbia V8L 5L4 (CA) (74) Representative: Dieckhoff, Beate  Jostarndt Patentanwalts-AG Brüsseler Ring 51 D-52074 Aachen D-52074 Aachen (DE)