(19)

(11)

EP 2 391 756 A2

(12)

(88) Date of publication A3: 21.10.2010 (43) Date of publication: 07.12.2011 Bulletin 2011/49 (21) Application number: 10705458.7 (22) Date of filing: 18.01.2010

(51) International Patent Classification (IPC):  D05B 3/06(2006.01) (86) International application number: PCT/US2010/021300 (87) International publication number: WO 2010/083481 (22.07.2010 Gazette 2010/29)

(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 MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 16.01.2009 US 145316 P (71) Applicant: Echelon Laser Systems, Lp W. Chicago, IL 60185 (US)	(72) Inventors: RUGGIE, Mark Franklin Park, Illinois 60131 (US) COGHLAN, Henry Elburn, Illinois 60119 (US) HEUSER, Hallie Geneva, Illinois 60134 (US) CARTER, Chase Joliet, Illinois 60435 (US) (74) Representative: Stark, Jens Christian  Dr. Stark & Partner Patentanwälte Moerser Strasse 140 47803 Krefeld 47803 Krefeld (DE)