(19)

(11)

EP 2 100 292 A1

(12)

(43) Date of publication: 16.09.2009 Bulletin 2009/38 (21) Application number: 07861089.6 (22) Date of filing: 19.12.2007

(51) International Patent Classification (IPC):  G10K 11/168(2006.01) E04B 1/99(2006.01) (86) International application number: PCT/SE2007/001131 (87) International publication number: WO 2008/088251 (24.07.2008 Gazette 2008/30)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 28.12.2006 SE 0602831 (71) Applicant: B&l Lund Ab 521 98 Broddetorp (SE)	(72) Inventor: LUND, Bengt 521 98 Broddetorp (SE) (74) Representative: Nilsson, Lennart  Lennart Nilsson Patentbyra AB, Ljungsjövägen 31 311 95 Falkenberg 311 95 Falkenberg (SE)