(19)

(11)

EP 3 574 221 A1

(12)

(43) Date of publication: 04.12.2019 Bulletin 2019/49 (21) Application number: 18701289.3 (22) Date of filing: 16.01.2018

(51) International Patent Classification (IPC):  F16B 5/07(2006.01) F16B 12/00(2006.01) (86) International application number: PCT/EP2018/050938 (87) International publication number: WO 2018/137960 (02.08.2018 Gazette 2018/31)

(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: 25.01.2017 EP 17152977 (71) Applicant: ETH Zurich 8092 Zurich (CH)	(72) Inventor: SENN, Cornelius 8606 Greifensee (CH) (74) Representative: Schmauder & Partner AG Patent- & Markenanwälte VSP  Zwängiweg 7 8038 Zürich 8038 Zürich (CH)