(19)
(11) EP 3 198 117 A1

(12)

(43) Date of publication:
02.08.2017 Bulletin 2017/31

(21) Application number: 15820811.6

(22) Date of filing: 25.08.2015
(51) International Patent Classification (IPC): 
E21D 21/00(2006.01)
(86) International application number:
PCT/ZA2015/000055
(87) International publication number:
WO 2016/049664 (31.03.2016 Gazette 2016/13)
(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: 23.09.2014 ZA 201406932

(71) Applicant: NCM Innovations (pty) Ltd
1451 Johannesburg (ZA)

(72) Inventors:
  • CUSTERS, Robert James
    Johannesburg 1451 (ZA)
  • CAWOOD, Martin
    Johannesburg 1451 (ZA)
  • SHEPPARD, James William
    Johannesburg 1451 (ZA)

(74) Representative: Adamson Jones 
BioCity Nottingham Pennyfoot Street
Nottingham NG1 1GF
Nottingham NG1 1GF (GB)

   


(54) ROCK BOLT WITH AN INTEGRALLY FORMED WEDGE FORMATION AND A METHOD OF MANUFACTURING SAME