(19)

(11)

EP 4 426 175 A2

(12)

(88) Date of publication A3: 15.06.2023 (43) Date of publication: 11.09.2024 Bulletin 2024/37 (21) Application number: 22891076.6 (22) Date of filing: 04.11.2022

(51) International Patent Classification (IPC):  A47L 9/06(2006.01) A47L 7/00(2006.01) A47L 13/10(2006.01) A47L 9/02(2006.01) A47L 13/02(2006.01) A47L 13/11(2006.01) (52) Cooperative Patent Classification (CPC): A47L 7/0009; A47L 9/02; A47L 9/0626 (86) International application number: PCT/US2022/079275 (87) International publication number: WO 2023/081799 (11.05.2023 Gazette 2023/19)

(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: 04.11.2021 US 202163275737 P (71) Applicants: Smith, Yale Merret San Antonio, TX 78238 (US) Neira, John San Antonio, TX 78238 (US)	(72) Inventors: Smith, Yale Merret San Antonio, TX 78238 (US) Neira, John San Antonio, TX 78238 (US) (74) Representative: Berggren Oy  P.O. Box 16 Eteläinen Rautatiekatu 10A 00101 Helsinki 00101 Helsinki (FI)