(19)
(11) EP 1 242 715 A1

(12)

(43) Date of publication:
25.09.2002 Bulletin 2002/39

(21) Application number: 00985068.6

(22) Date of filing: 16.11.2000
(51) International Patent Classification (IPC)7: E21B 23/02
(86) International application number:
PCT/EP0011/560
(87) International publication number:
WO 0103/6784 (25.05.2001 Gazette 2001/21)
(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: 17.11.1999 EP 99309153

(71) Applicant: SHELL INTERNATIONALE RESEARCHMAATSCHAPPIJ B.V.
2596 HR Den Haag (NL)

(72) Inventor:
  • HEIJNEN, Wilhelmus, Hubertus, Paulus, Maria
    NL-1951 GN Velsen (NL)

   


(54) LOCK ASSEMBLY