(19)
(11) EP 1 540 131 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
12.12.2007 Bulletin 2007/50

(45) Mention of the grant of the patent:
31.10.2007 Bulletin 2007/44

(21) Application number: 03755808.7

(22) Date of filing: 09.09.2003
(51) International Patent Classification (IPC): 
E21B 33/16(2006.01)
F16J 15/00(2006.01)
 E21B 21/02(2006.01)
(86) International application number:
PCT/US2003/028341
(87) International publication number:
WO 2004/022903 (18.03.2004 Gazette 2004/12)

(54)

"TOP DRIVE SWIVEL APPARATUS AND METHOD"

KRAFTDREHKOPFSCHWENKVORRICHTUNG UND -VERFAHREN

APPAREIL DE TETE D'INJECTION A MECANISME D'ENTRAINEMENT SUPERIEUR ET PROCEDE CORRESPONDANT

(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

(30) Priority: 09.09.2002 US 409177 P

(43) Date of publication of application:
15.06.2005 Bulletin 2005/24

(60) Divisional application:
07117849.5

(73) Proprietor: Tomahawk Wellhead & Services, Inc.
Houma LA 70360 (US)

(72) Inventors:
  • ROBICHAUX, Kip, M.
    Houma, LA 70363 (US)
  • ROBICHAUX, Terry, P.
    Houma, LA 70363 (US)
  • JACOBS, Steve
    Houma, LA 70363 (US)
  • CLEMENT, Bryan
    Houma, LA 70363 (US)
  • PELLEGRIN, Murray
    Houma, LA 70364 (US)
  • CAILLOUET, Kenneth, G.
    Thibodaux, LA 70301 (US)
  • WATSON, Philip, K.
    Houma, LA 70360 (US)

(74) Representative: Harrison Goddard Foote 
Belgrave Hall Belgrave Street
Leeds LS2 8DD
Leeds LS2 8DD (GB)


(56) References cited: : 
GB-A- 2 276 403
US-A- 3 720 264
US-A- 3 850 241
US-A- 4 722 389
US-A- 5 236 035
US-A- 5 443 122
US-A1- 2003 024 701
 US-A- 2 113 647
US-A- 3 750 749
US-A- 4 219 087
US-A- 4 854 383
US-A- 5 293 933
US-A- 5 950 724
US-A1- 2004 035 574
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).