(19)

(11)

EP 2 252 987 A2

(12)

(88) Date of publication A3: 12.11.2009 (43) Date of publication: 24.11.2010 Bulletin 2010/47 (21) Application number: 09718775.1 (22) Date of filing: 09.03.2009

(51) International Patent Classification (IPC):  G08C 17/02(2006.01) (86) International application number: PCT/DK2009/000061 (87) International publication number: WO 2009/112028 (17.09.2009 Gazette 2009/38)

(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 TR Designated Extension States: AL BA RS (30) Priority: 08.03.2008 DK 200800353 (71) Applicant: Linak A/S 6430 Nordborg (DK)	(72) Inventor: LAUGESEN, Caspar, P. DK-6470 Sydals (DK) (74) Representative: Pedersen, Soeren Skovgaard  Linak A/S Patent Department P.O. Box 238 9100 Aalborg 9100 Aalborg (DK)