(19)

(11)

EP 2 417 311 A2

(12)

(88) Date of publication A3: 03.03.2011 (43) Date of publication: 15.02.2012 Bulletin 2012/07 (21) Application number: 10714728.2 (22) Date of filing: 07.04.2010

(51) International Patent Classification (IPC):  E04F 15/18(2006.01) (86) International application number: PCT/US2010/030170 (87) International publication number: WO 2010/118084 (14.10.2010 Gazette 2010/41)

(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 Designated Extension States: BA ME (30) Priority: 07.04.2009 US 167305 P 06.04.2010 US 754994 (71) Applicant: Interface, Inc. Atlanta, Georgia 30339 (US)	(72) Inventors: GALLAGHER, Kevin, C. Atlanta Georgia 30339 (US) GRAY, Keith, N. Marietta Georgia 30067 (US) FOLETTA, Robert, Henry Mt. Evelyn Victoria 3796 (AU) (74) Representative: Phillips & Leigh  5 Pemberton Row London EC4A 3BA London EC4A 3BA (GB)