(19)
(11) EP 3 143 237 A2

(12)

(88) Date of publication A3:
10.03.2016

(43) Date of publication:
22.03.2017 Bulletin 2017/12

(21) Application number: 15728942.2

(22) Date of filing: 18.05.2015
(51) International Patent Classification (IPC): 
E21B 17/042(2006.01)
E21B 17/043(2006.01)
 E21B 17/046(2006.01)
E21B 17/07(2006.01)
(86) International application number:
PCT/SE2015/050550
(87) International publication number:
WO 2015/174920 (19.11.2015 Gazette 2015/46)
(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: 16.05.2014 SE 1450576

(71) Applicant: Atlas Copco Secoroc AB
737 25 Fagersta (SE)

(72) Inventors:
  • YAO, James Jing
    Mississauga L5M5E5 (CA)
  • ÖSTERHOLM, Thomas
    S-737 41 Fagersta (SE)
  • HARTWIG, Sverker
    S-187 33 Täby (SE)
  • BERONIUS, Alexander
    737 32 Fagersta (SE)

(74) Representative: Ehrner & Delmar Patentbyrå AB 
Box 10316
100 55 Stockholm
100 55 Stockholm (SE)

   


(54) JOINT AND JOINT PARTS FOR DRILL STRING COMPONENTS