(19)
(11) EP 0 045 761 A1

(12)

(43) Date of publication:
17.02.1982 Bulletin 1982/07

(21) Application number: 81900434.0

(22) Date of filing: 16.02.1981
(51) International Patent Classification (IPC): 
G05B 19/ 23( . )
G05B 19/ 414( . )
(86) International application number:
PCT/GB1981/000021
(87) International publication number:
WO 1981/002347 (20.08.1981 Gazette 1981/20)
(84) Designated Contracting States:
CH DE FR LI SE

(30) Priority: 14.02.1980 GB 19800005019

(71) Applicant: ZEUS INTERNATIONAL TRADING CO. LIMITED
Hitchin, Hertfordshire SG5 1AS (GB)

(72) Inventors:
  • BILLINGSLEY, John
    Southsea, Hampshire (GB)
  • SINGH, Harjit
    Portsmouth, Hampshire (GB)

(74) Representative: Thomson, Roger Bruce, et al 
W.P. THOMPSON & CO. Celcon House 289-293 High Holborn
London WC1V 7HU
London WC1V 7HU (GB)

   


(54) POSITION CONTROL METHODS AND SYSTEMS