(19)

(11)

EP 3 857 094 A1

(12)

(43) Date of publication: 04.08.2021 Bulletin 2021/31 (21) Application number: 19867241.2 (22) Date of filing: 26.09.2019

(51) International Patent Classification (IPC):  F16D 66/02(2006.01) G01B 21/32(2006.01) G01N 3/56(2006.01) G01B 7/16(2006.01) G01N 27/04(2006.01) (86) International application number: PCT/AU2019/051037 (87) International publication number: WO 2020/061634 (02.04.2020 Gazette 2020/14)

(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: 26.09.2018 AU 2018903627 (71) Applicant: Brian Investments Pty Ltd Malaga, WA 6090 (AU)	(72) Inventors: CALLAGHAN, Mark Bayswater, Western Australia 6053 (AU) HOUSTON, Rodney Malaga, Western Australia 6090 (AU) (74) Representative: HGF  1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)