(19)

(11)

EP 3 631 083 A1

(12)

(43) Date of publication: 08.04.2020 Bulletin 2020/15 (21) Application number: 18706600.6 (22) Date of filing: 06.02.2018

(51) International Patent Classification (IPC):  D21H 25/12(2006.01) B05C 11/02(2006.01) B05C 1/08(2006.01) D21G 3/00(2006.01) (86) International application number: PCT/US2018/016946 (87) International publication number: WO 2018/217249 (29.11.2018 Gazette 2018/48)

(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 MD TN (30) Priority: 22.05.2017 US 201762509341 P 18.12.2017 US 201715844969 (71) Applicant: Buschman, Westlake David Cleveland, OH 44103 (US)	(72) Inventor: BUSCHMAN, Westlake David Cleveland, OH 44103 (US) (74) Representative: Raynor, Simon Mark  Urquhart-Dykes & Lord LLP Altius House 1 North Fourth Street Milton Keynes MK9 1DG Milton Keynes MK9 1DG (GB)