(19)

(11)

EP 3 934 580 A1

(12)

(43) Date of publication: 12.01.2022 Bulletin 2022/02 (21) Application number: 20787946.1 (22) Date of filing: 08.04.2020

(51) International Patent Classification (IPC):  A61F 2/16(2006.01) A61F 9/008(2006.01) (52) Cooperative Patent Classification (CPC): A61F 9/008; A61F 2/1637; A61F 2002/1681; A61F 2/1618; A61F 2002/1699 (86) International application number: PCT/US2020/027197 (87) International publication number: WO 2020/210305 (15.10.2020 Gazette 2020/42)

(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: 10.04.2019 US 201916380622 (71) Applicant: Z Optics, Inc. Cookeville, TN 38501 (US)	(72) Inventors: SARVER, Edwin J. Cookeville, TN 38501 (US) SIMMS, James, J. Medford, NJ 08055 (US) (74) Representative: HGF  HGF Limited 1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)