(19)

(11)

EP 2 986 853 A2

(12)

(88) Date of publication A3: 12.11.2015 (43) Date of publication: 24.02.2016 Bulletin 2016/08 (21) Application number: 14804191.6 (22) Date of filing: 04.04.2014

(51) International Patent Classification (IPC):  F04B 43/113(2006.01) F04B 15/02(2006.01) (86) International application number: PCT/ZA2014/000016 (87) International publication number: WO 2014/194338 (04.12.2014 Gazette 2014/49)

(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 (30) Priority: 05.04.2013 ZA 201302446 (71) Applicant: ERLS Mining (PTY) Ltd 2059 Johannesburg (ZA)	(72) Inventors: WOOD, Richard Roy 2191 Johannesburg (ZA) BREDIN, Murray 2193 Johannesburg (ZA) (74) Representative: Wood, Graham  Bailey Walsh & Co LLP 1 York Place Leeds, LS1 2DR Leeds, LS1 2DR (GB)