(19)

(11)

EP 0 721 648 A1

(12)

(43) Date of publication: 17.07.1996 Bulletin 1996/29 (21) Application number: 94927712.0 (22) Date of filing: 26.09.1994

(51) International Patent Classification (IPC):  H01H 11/ 00( . ) (86) International application number: PCT/GB1994/002084 (87) International publication number: WO 1995/009430 (06.04.1995 Gazette 1995/15)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 27.09.1993 GB 19930019885 (71) Applicant: Honeywell Control Systems Ltd. Bracknell, Berkshire RG12 1EB (GB)	(72) Inventor: TRICKETT, Paul Motherwell ML1 3DN (GB) (74) Representative: Fox-Male, Nicholas Vincent Humbert  Honeywell Control Systems Limited, Honeywell House, Arlington Business Park Bracknell, Berkshire RG12 1EB Bracknell, Berkshire RG12 1EB (GB)