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EP 4 487 023 A1

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(43) Date of publication: 08.01.2025 Bulletin 2025/02 (21) Application number: 23763885.3 (22) Date of filing: 01.03.2023

(51) International Patent Classification (IPC):  F16B 37/14(2006.01) F16B 39/24(2006.01) F16B 35/04(2006.01) B60B 3/16(2006.01) (52) Cooperative Patent Classification (CPC): F16B 37/14; B60B 3/165; B60B 7/068; B60B 2900/3318; F16B 41/005; F16B 43/00; F16B 35/06 (86) International application number: PCT/US2023/014265 (87) International publication number: WO 2023/167917 (07.09.2023 Gazette 2023/36)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 01.03.2022 US 202263315434 P 04.01.2023 WO PCT/US2023/010127 (71) Applicant: MacLean-Fogg Company Mundelein, IL 60060 (US)

(72) Inventors: RAVES, Mark Commerce Township, Michigan 48382 (US) MAYERS, Lee Richard Sterling Heights, Michigan 48312 (US) VERLA, Joseph Bloomfield Hills, Michigan 48304 (US) RIMATZKI, Kenneth James Harrison Township, Michigan 48045 (US) (74) Representative: GPI Brevets  1330, rue Guillibert de la Lauzière EuroParc de Pichaury Bât B2 13856 Aix en Provence Cedex 3 13856 Aix en Provence Cedex 3 (FR)