(19)

(11)

EP 3 474 999 A2

(12)

(88) Date of publication A3: 19.04.2018 (43) Date of publication: 01.05.2019 Bulletin 2019/18 (21) Application number: 17735418.0 (22) Date of filing: 23.06.2017

(51) International Patent Classification (IPC):  B05B 13/00(2006.01) B64C 39/02(2006.01) B05C 1/00(2006.01) B64C 27/08(2006.01) E04F 21/02(2006.01) (86) International application number: PCT/EP2017/065595 (87) International publication number: WO 2017/220803 (28.12.2017 Gazette 2017/52)

(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 (30) Priority: 23.06.2016 GB 201610986 (71) Applicant: Koivuharju, Arto 55100 Imatra (FI)	(72) Inventor: Koivuharju, Arto 55100 Imatra (FI) (74) Representative: D Young & Co LLP  120 Holborn London EC1N 2DY London EC1N 2DY (GB)