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(11)

EP 2 834 557 A2

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(88) Date of publication A3: 16.01.2014 (43) Date of publication: 11.02.2015 Bulletin 2015/07 (21) Application number: 13717913.1 (22) Date of filing: 02.04.2013

(51) International Patent Classification (IPC):  F21V 5/04(2006.01) C23C 14/06(2006.01) C23C 14/35(2006.01) (86) International application number: PCT/US2013/034927 (87) International publication number: WO 2013/151984 (10.10.2013 Gazette 2013/41)

(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 Designated Extension States: BA ME (30) Priority: 02.04.2012 US 201213437384 (71) Applicant: Guardian Industries Corp. Auburn Hills, MI 48326-1714 (US)	(72) Inventors: MAIKOWSKI, David, P. Plymouth, MI 48170 (US) MCLEAN, David, D. Royal Oak, MI 48067 (US) BOURQUE, Timothy Garden City, MI 48135 (US) HOBBS, Christopher Evanston, IL 60201 (US) (74) Representative: Hess, Peter K. G.  Bardehle Pagenberg Partnerschaft mbB Patentanwälte, Rechtsanwälte Prinzregentenplatz 7 81675 München 81675 München (DE)