(19)

(11)

EP 2 962 055 A1

(12)

(43) Date of publication: 06.01.2016 Bulletin 2016/01 (21) Application number: 14756963.6 (22) Date of filing: 30.01.2014

(51) International Patent Classification (IPC):  F28F 1/12(2006.01) B23K 1/00(2006.01) F28F 3/02(2006.01) B21D 53/02(2006.01) F28F 1/10(2006.01) (86) International application number: PCT/NO2014/000009 (87) International publication number: WO 2014/133395 (04.09.2014 Gazette 2014/36)

(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 (30) Priority: 01.03.2013 NO 20130316 (71) Applicant: Sapa AS 0185 Oslo (NO)	(72) Inventor: PLOUG, Ole DK-6230 Roedekro (DK) (74) Representative: Zacco Sweden AB  P.O. Box 5581 114 85 Stockholm 114 85 Stockholm (SE)