(19)
(11) EP 1 012 684 A1

(12)

(43) Date of publication:
28.06.2000 Bulletin 2000/26

(21) Application number: 98912580.2

(22) Date of filing: 20.03.1998
(51) International Patent Classification (IPC)7: G05D 16/20, F17D 3/01
(86) International application number:
PCT/GB9800/676
(87) International publication number:
WO 9843/141 (01.10.1998 Gazette 1998/39)
(84) Designated Contracting States:
BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

(30) Priority: 22.03.1997 GB 9705996

(71) Applicant: BG plc
Reading, Berkshire RG6 1PT (GB)

(72) Inventors:
  • KIRKMAN, Lee
    Sussex BN15 8HB (GB)
  • BLACKMAN, Richard
    Sussex RH13 5SN (GB)
  • PERRYMAN, Clayton
    Sussex RH13 7TH (GB)

(74) Representative: Illingworth-Law, William et al
BG Intellectual Property Ltd.,100 Thames Valley Park Drive
Reading, Berks RG6 1PT
Reading, Berks RG6 1PT (GB)

   


(54) UNDERGROUND PRESSURE REGULATING MODULE