(19)

(11)

EP 3 166 752 A1

(12)

(43) Date of publication: 17.05.2017 Bulletin 2017/20 (21) Application number: 14742381.8 (22) Date of filing: 09.07.2014

(51) International Patent Classification (IPC):  B24C 1/00(2006.01) B24C 7/00(2006.01) (86) International application number: PCT/NL2014/050467 (87) International publication number: WO 2016/006999 (14.01.2016 Gazette 2016/02)

(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 (71) Applicants: Jager, Hendrik 9202 AP Drachten (NL) Woudstra, Jelle 9001 BW Grou (NL)	(72) Inventors: Jager, Hendrik 9202 AP Drachten (NL) Woudstra, Jelle 9001 BW Grou (NL) (74) Representative: Verdijck, Gerardus et al Arnold & Siedsma Bezuidenhoutseweg 57 2594 AC The Hague 2594 AC The Hague (NL)