(19)

(11)

EP 2 971 996 A1

(12)

(43) Date of publication: 20.01.2016 Bulletin 2016/03 (21) Application number: 14702949.0 (22) Date of filing: 03.02.2014

(51) International Patent Classification (IPC):  F24F 13/26(2006.01) F04D 29/46(2006.01) F24F 7/007(2006.01) F04D 25/08(2006.01) F24F 1/01(2006.01) (86) International application number: PCT/GB2014/050294 (87) International publication number: WO 2014/140518 (18.09.2014 Gazette 2014/38)

(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 Designated Extension States: BA ME (30) Priority: 11.03.2013 GB 201304338 (71) Applicant: Dyson Technology Limited Malmesbury, Wiltshire SN16 0RP (GB)	(72) Inventors: POULTON, Roy Malmesbury Wiltshire SN16 0RP (GB) HODGETTS, Joseph Malmesbury Wiltshire SN16 0RP (GB) (74) Representative: Macpherson, Craig Stuart et al Dyson Technology Limited Intellectual Property Department Tetbury Hill Malmesbury, Wiltshire SN16 0RP Malmesbury, Wiltshire SN16 0RP (GB)