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(11)

EP 4 228 933 A1

(12)

(43) Date of publication: 23.08.2023 Bulletin 2023/34 (21) Application number: 21881006.7 (22) Date of filing: 13.10.2021

(51) International Patent Classification (IPC):  B60R 25/10(2013.01) G08B 25/10(2006.01) B60Q 9/00(2006.01) F16B 41/00(2006.01) G08B 25/00(2006.01) B60B 3/16(2006.01) F16B 37/14(2006.01) G07C 5/08(2006.01) (52) Cooperative Patent Classification (CPC): F16B 37/14; G07C 5/08; G08B 25/10; G08B 13/02; F16B 41/005; B60B 3/165; B60B 2900/3318 (86) International application number: PCT/US2021/054805 (87) International publication number: WO 2022/081726 (21.04.2022 Gazette 2022/16)

(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: 13.10.2020 US 202017069649 (71) Applicant: MacLean-Fogg Company Mundelein, IL 60060 (US)

(72) Inventors: DAVIS, David J. Rochester, Michigan 48306 (US) MISZTUR, Kryzysztof Streamwood, Illinois 60107 (US) MUEHLICH, Christian Whitewater, Michigan 53190 (US) WHITNEY, Robert E. Libertyville, Illinois 60048 (US) WILSON, Larry J. Commerce Township, Michigan 48382 (US) ZAGORNIAK, Marcus A. Charlotte, North Carolina 28202 (US) FISTER, Steven R. Tucson, Arizona 85750 (US) RAVES, Mark Commerce Township, Michigan 48382 (US) ROBERTS, Luke Michael Madison Heights, Michigan 48071 (US) WILMHOFF, Ben Louisville, Colorado 80027 (US) WHITNEY, Bennett Libertyville, Illinois 60048 (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)