(19)
(11) EP 1 259 336 A1

(12)

(43) Date of publication:
27.11.2002 Bulletin 2002/48

(21) Application number: 01901139.4

(22) Date of filing: 20.01.2001
(51) International Patent Classification (IPC)7B21D 3/02, B21F 1/02
(86) International application number:
PCT/DK0100/044
(87) International publication number:
WO 0106/0540 (23.08.2001 Gazette 2001/34)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 03.02.2000 DK 200000180

(71) Applicant: Stema Engineering A/S
3490 Kvistgaard (DK)

(72) Inventors:
  • PEDERSEN, Hans
    DK-3000 Helsingoer (DK)
  • NIELSEN, Henrik, Dan
    DK-3650 Oelstykke (DK)
  • JESPERSEN, Christian
    DK-3390 Hundested (DK)
  • CHRISTENSEN, Jan, Dall
    DK-3550 Slangerup (DK)

(74) Representative: Lind, Charles Leo 
c/o Linds PatentbureauEllekrattet 20
2950 Vedbaek
2950 Vedbaek (DK)

   


(54) A METHOD AND APPARATUS FOR REDUCTION OF EMBEDDED OR INHERENT TORSIONAL STRAIN IN REINFORCING STEEL OR THE LIKE