(19)

(11)

EP 2 517 475 A1

(12)

(43) Date of publication: 31.10.2012 Bulletin 2012/44 (21) Application number: 10807341.2 (22) Date of filing: 22.12.2010

(51) International Patent Classification (IPC):  H04R 1/10(2006.01) (86) International application number: PCT/GB2010/052196 (87) International publication number: WO 2011/077160 (30.06.2011 Gazette 2011/26)

(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: 23.12.2009 GB 0922610 (71) Applicant: B & W Group Ltd Worthing West Sussex BN11 2BH (GB)	(72) Inventors: BREHMER, Jesper Greater London WC1X 0HT (GB) HOGGARTH, Marcus Hertfordshire AL3 4DE (GB) (74) Representative: Pearson, James Ginn  Abel & Imray 20 Red Lion Street London WC1R 4PQ London WC1R 4PQ (GB)