(19)

(11)

EP 3 132 124 A2

(12)

(88) Date of publication A3: 10.12.2015 (43) Date of publication: 22.02.2017 Bulletin 2017/08 (21) Application number: 15722743.0 (22) Date of filing: 13.04.2015

(51) International Patent Classification (IPC):  F01K 23/06(2006.01) F01K 21/04(2006.01) F01K 25/08(2006.01) (86) International application number: PCT/GB2015/051115 (87) International publication number: WO 2015/159056 (22.10.2015 Gazette 2015/42)

(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 Designated Validation States: MA (30) Priority: 15.04.2014 GB 201406803 (71) Applicant: Norgren Limited Lichfield Staffordshire WS13 6SB (GB)	(72) Inventors: SEALY, Mark Alcester Warwickshire B50 4HQ (GB) COKER, Adam Johnson, Indiana 46184 (US) MORRIS, John Auburn, Washington 98001 (US) (74) Representative: Range, Christopher William  Withers & Rogers LLP 4 More London Riverside London SE1 2AU London SE1 2AU (GB)