(19)

(11)

EP 3 649 389 A1

(12)

(43) Date of publication: 13.05.2020 Bulletin 2020/20 (21) Application number: 18844933.4 (22) Date of filing: 02.08.2018

(51) International Patent Classification (IPC):  F16L 1/12(2006.01) F16L 1/20(2006.01) F16L 57/02(2006.01) F16L 1/16(2006.01) (86) International application number: PCT/US2018/044925 (87) International publication number: WO 2019/032359 (14.02.2019 Gazette 2019/07)

(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: 09.08.2017 US 201715672815 (71) Applicant: Persson, Tor Houston, TX 77242-2484 (US)	(72) Inventor: Persson, Tor Houston, TX 77242-2484 (US) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)