(19)

(11)

EP 4 073 565 A1

(12)

(43) Date of publication: 19.10.2022 Bulletin 2022/42 (21) Application number: 20842363.2 (22) Date of filing: 11.12.2020

(51) International Patent Classification (IPC):  G02B 6/38(2006.01) G02B 6/44(2006.01) (52) Cooperative Patent Classification (CPC): G02B 6/3849; G02B 6/3869; G02B 6/3893; G02B 6/3897; G02B 6/4465 (86) International application number: PCT/US2020/064652 (87) International publication number: WO 2021/119517 (17.06.2021 Gazette 2021/24)

(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: 13.12.2019 US 201962947966 P (71) Applicant: US Conec, Ltd Hickory, NC 28603-2306 (US)	(72) Inventors: CLOUD, Mitchell Hickory, NC 28602 (US) HIGLEY, Jason Hickory, NC 28602 (US) CHILDERS, Darrell, R. Hickory, NC 28601 (US) (74) Representative: Stoffregen, Hans-Herbert  Patentanwalt Friedrich-Ebert-Anlage 11b 63450 Hanau 63450 Hanau (DE)