(19)

(11)

EP 3 612 051 A2

(12)

(88) Date of publication A3: 03.01.2019 (43) Date of publication: 26.02.2020 Bulletin 2020/09 (21) Application number: 18787199.1 (22) Date of filing: 18.04.2018

(51) International Patent Classification (IPC):  A43B 23/04(2006.01) A43B 23/02(2006.01) A43C 11/12(2006.01) (86) International application number: PCT/US2018/028076 (87) International publication number: WO 2018/195147 (25.10.2018 Gazette 2018/43)

(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: KH MA MD TN (30) Priority: 18.04.2017 US 201762486715 P 17.04.2018 US 201815955452 (71) Applicant: BHA Altair, LLC Franklin, TN 37067 (US)	(72) Inventor: BASTIANELLI, Peter Dunfermline Fife KY12 7LY (GB) (74) Representative: Davies, Gregory Mark  Urquhart-Dykes & Lord LLP 7th Floor Churchill House Churchill Way Cardiff CF10 2HH Cardiff CF10 2HH (GB)