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(11)

EP 4 288 675 A1

(12)

(43) Date of publication: 13.12.2023 Bulletin 2023/50 (21) Application number: 22702008.8 (22) Date of filing: 01.02.2022

(51) International Patent Classification (IPC):  F16F 7/104(2006.01) E04B 9/18(2006.01) E04H 9/02(2006.01) (52) Cooperative Patent Classification (CPC): F16F 7/104; E04B 2009/186 (86) International application number: PCT/EP2022/052249 (87) International publication number: WO 2022/167379 (11.08.2022 Gazette 2022/32)

(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: 04.02.2021 EP 21155318 (71) Applicant: Silencions sp. z o. o. 51-317 Wroclaw (PL)	(72) Inventors: KUBAN, Lukasz Robert 42-200 Czestochowa (PL) MODRZYNSKI, Pawel Piotr 55-095 Domaszczyn (PL) KRAS, Aleksander Stefan 54-312 Wroclaw (PL) (74) Representative: reuteler & cie SA  Chemin de la Vuarpillière 29 1260 Nyon 1260 Nyon (CH)