(19)

(11)

EP 4 473 163 A1

(12)

(43) Date of publication: 11.12.2024 Bulletin 2024/50 (21) Application number: 23750114.3 (22) Date of filing: 31.01.2023

(51) International Patent Classification (IPC):  E01F 9/529(2016.01) E01F 15/02(2006.01) E01F 9/553(2016.01) E01C 11/24(2006.01) (52) Cooperative Patent Classification (CPC): E01F 9/529 (86) International application number: PCT/US2023/012015 (87) International publication number: WO 2023/150123 (10.08.2023 Gazette 2023/32)

(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 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: 01.02.2022 US 202263305541 P (71) Applicant: Traffix Devices, Inc. San Clemente, CA 92673 (US)	(72) Inventors: MAUS, Geoffrey B. San Clemente, California 92673 (US) KULP, Brent M. San Clemente, California 92673 (US) KULP, Jack H. San Clemente, California 92673 (US) (74) Representative: Pure Ideas Limited  25 Meer Street Stratford-Upon-Avon Warwickshire CV37 6QB Warwickshire CV37 6QB (GB)