(19)

(11)

EP 3 638 446 A1

(12)

(43) Date of publication: 22.04.2020 Bulletin 2020/17 (21) Application number: 18737083.8 (22) Date of filing: 12.06.2018

(51) International Patent Classification (IPC):  B23K 9/12(2006.01) B23K 35/02(2006.01) B23K 9/29(2006.01) (86) International application number: PCT/US2018/037004 (87) International publication number: WO 2018/231758 (20.12.2018 Gazette 2018/51)

(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: 14.06.2017 US 201715622912 (71) Applicant: Illinois Tool Works Inc. Glenview, IL 60025 (US)	(72) Inventor: CENTNER, Robert, Joseph Glenview, Illinois 60025 (US) (74) Representative: HGF Limited  3rd Floor Central Square South Orchard Street Newcastle Newcastle upon Tyne NE1 3AZ Newcastle upon Tyne NE1 3AZ (GB)