(19)
(11) EP 2 964 988 A1

(12)

(43) Date of publication:
13.01.2016 Bulletin 2016/02

(21) Application number: 13877149.8

(22) Date of filing: 05.03.2013
(51) International Patent Classification (IPC): 
F16L 15/04(2006.01)
(86) International application number:
PCT/JP2013/001345
(87) International publication number:
WO 2014/136139 (12.09.2014 Gazette 2014/37)
(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

(71) Applicant: NKK TUBES
Kawasaki-shi Kanagawa 2100864 (JP)

(72) Inventors:
  • SAKURA, Koji
    Kawasaki-shi Kanagawa 210-0864 (JP)
  • SATO, Nobuhide
    Kawasaki-shi Kanagawa 210-0864 (JP)
  • NARIKAWA, Tomoyuki
    Kawasaki-shi Kanagawa 210-0864 (JP)

(74) Representative: Haley, Stephen 
Gill Jennings & Every LLP The Broadgate Tower 20 Primrose Street
London EC2A 2ES
London EC2A 2ES (GB)

   


(54) DOUBLE SHOULDER TOOL JOINT