(19)
(11) EP 1 581 719 A1

(12)

(43) Date of publication:
05.10.2005 Bulletin 2005/40

(21) Application number: 04701051.7

(22) Date of filing: 09.01.2004
(51) International Patent Classification (IPC)7E21B 23/01, E21B 23/04, E21B 34/08
(86) International application number:
PCT/GB2004/000009
(87) International publication number:
WO 2004/063523 (29.07.2004 Gazette 2004/31)
(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
Designated Extension States:
AL LT LV MK

(30) Priority: 10.01.2003 GB 0300550

(71) Applicant: The Engineering Business Limited
Northumberland NE44 6EG (GB)

(72) Inventors:
  • GRINSTED, Timothy William
    Northumberland NE43 7TN (GB)
  • BINGHAM, Martin
    Hexam NE46 3EY (GB)

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

   


(54) ACTUATION DEVICES, TOOLS AND APPARATUS