(19)

(11)

EP 3 140 467 A2

(12)

(88) Date of publication A3: 21.07.2016 (43) Date of publication: 15.03.2017 Bulletin 2017/11 (21) Application number: 15782243.8 (22) Date of filing: 23.04.2015

(51) International Patent Classification (IPC):  E04B 1/344(2006.01) E04H 1/12(2006.01) E04B 1/348(2006.01) (86) International application number: PCT/ZA2015/000026 (87) International publication number: WO 2015/164891 (29.10.2015 Gazette 2015/43)

(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: MA (30) Priority: 25.04.2014 ZA 201403026 (71) Applicant: Duncan, Douglas Malcolm 1709 Roodepoort (ZA)	(72) Inventor: Duncan, Douglas Malcolm 1709 Roodepoort (ZA) (74) Representative: Tomkinson, Alexandra  Bailey Walsh & Co LLP 1 York Place Leeds, LS1 2DR Leeds, LS1 2DR (GB)