(19)

(11)

EP 2 498 642 A1

(12)

(43) Date of publication: 19.09.2012 Bulletin 2012/38 (21) Application number: 10830282.9 (22) Date of filing: 12.11.2010

(51) International Patent Classification (IPC):  A47B 77/18(2006.01) A47B 96/06(2006.01) (86) International application number: PCT/SE2010/051245 (87) International publication number: WO 2011/059389 (19.05.2011 Gazette 2011/20)

(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 (30) Priority: 13.11.2009 SE 0950856 (71) Applicant: Elektro Termo AB 597 53 Åtvidaberg (SE)	(72) Inventors: LEJONDAHL, Lars-Erik S-641 34 Katrineholm (SE) KRÖNSTRÖM, Marie S-582 26 Linköping (SE) (74) Representative: Karlsson, Leif Karl Gunnar et al Groth & Co KB P.O. Box 6107 102 32 Stockholm 102 32 Stockholm (SE)