(19)

(11)

EP 4 396 420 A1

(12)

(43) Date of publication: 10.07.2024 Bulletin 2024/28 (21) Application number: 22865142.8 (22) Date of filing: 30.08.2022

(51) International Patent Classification (IPC):  E04B 1/19(2006.01) (52) Cooperative Patent Classification (CPC): E04B 1/1906; E04B 2001/1927; E04B 2001/1966 (86) International application number: PCT/NO2022/050204 (87) International publication number: WO 2023/033655 (09.03.2023 Gazette 2023/10)

(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: 30.08.2021 NO 20211042 (71) Applicant: Produktif Norway AS 2830 Raufoss (NO)	(72) Inventor: KONGSHAUG, Rune 6530 Averöya (NO) (74) Representative: Curo AS  Vestre Rosten 81 7075 Tiller 7075 Tiller (NO)