(19)
(11) EP 4 178 736 A1

(12)

(43) Date of publication:
17.05.2023 Bulletin 2023/20

(21) Application number: 21740541.4

(22) Date of filing: 09.07.2021
(51) International Patent Classification (IPC): 
B21C 37/12(2006.01)
(52) Cooperative Patent Classification (CPC):
B21C 37/121; B21C 37/127; B21C 37/128
(86) International application number:
PCT/EP2021/069191
(87) International publication number:
WO 2022/008728 (13.01.2022 Gazette 2022/02)
(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:
KH MA MD TN

(30) Priority: 10.07.2020 DK PA202000828

(71) Applicant: National Oilwell Varco Denmark I/S
2605 Brøndby (DK)

(72) Inventors:
  • KOCH, Lasse Tang
    2605 Brøndby (DK)
  • KRISTIANSEN, Mikael
    2900 Hellerup (DK)
  • CHRISTIANSEN, Benny
    4470 Svebølle (DK)
  • HANSEN, Steen Hjorth
    4200 Slagelse (DK)

(74) Representative: Plougmann Vingtoft a/s 
Strandvejen 70
2900 Hellerup
2900 Hellerup (DK)

   


(54) METHOD OF AND SYSTEM FOR MANUFACTURING A CARCASS WITH CONTROLLED PITCH