(19)
(11)
EP 1 075 585 A1
(12)
(43)
Date of publication:
14.02.2001
Bulletin 2001/07
(21)
Application number:
99950359.2
(22)
Date of filing:
22.04.1999
(51)
International Patent Classification (IPC)
7
:
E21B
19/15
,
E21B
19/20
,
E21B
7/02
(86)
International application number:
PCT/SE9900/647
(87)
International publication number:
WO 9958/812
(
18.11.1999
Gazette 1999/46)
(84)
Designated Contracting States:
BE DE DK ES FI FR GB IT NL PT
(30)
Priority:
29.04.1998
SE 9801519
(71)
Applicant:
Hardab Karlstad Aktiebolag
653 50 Karlstad (SE)
(72)
Inventor:
SJÖBERG, Bo
S-669 91 Deje (SE)
(74)
Representative:
Hynell, Magnus
Hynell Patenttjänst AB,Patron Carls väg 2
683 40 Hagfors/Uddeholm
683 40 Hagfors/Uddeholm (SE)
(54)
DEVICE RELATING TO A BORING ASSEMBLY