(19)

(11)

EP 4 222 038 A1

(12)

(43) Date of publication: 09.08.2023 Bulletin 2023/32 (21) Application number: 21878443.7 (22) Date of filing: 06.10.2021

(51) International Patent Classification (IPC):  B61L 5/04(2006.01) B61L 5/16(2006.01) E01B 7/18(2006.01) B61L 5/10(2006.01) B61L 7/04(2006.01) (52) Cooperative Patent Classification (CPC): B61L 5/16; B61L 5/04; B61L 5/10 (86) International application number: PCT/US2021/053746 (87) International publication number: WO 2022/076540 (14.04.2022 Gazette 2022/15)

(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: 06.10.2020 US 202017064593 (71) Applicant: Beaman, Mona Kosse, TX 76653 (US)	(72) Inventor: RODRIGUES, Dilson, Dos Santos Hewitt, TX 76653 (US) (74) Representative: Rössler, Thomas  Luxpatent Intellectual Property Zavelput 17 1000 Brussel 1000 Brussel (BE)