(19)

(11)

EP 0 489 815 A1

(12)

(43) Date of publication: 17.06.1992 Bulletin 1992/25 (21) Application number: 90913277.0 (22) Date of filing: 28.08.1990

(51) International Patent Classification (IPC):  A62B 18/ 04( . ) A62B 18/ 08( . ) (86) International application number: PCT/GB1990/001324 (87) International publication number: WO 1991/003279 (21.03.1991 Gazette 1991/07)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 01.09.1989 GB 19890019825 (71) Applicant: ARAN FIRE & SAFETY (UK) LIMTED Scunthorpe South Humberside DN15 7DR (GB)	(72) Inventor: LOWRIE, Robert Nr. Scunthorpe South Humberside DN15 9LH (GB) (74) Representative: Oulton, Richard John  R.J. OULTON & CO., First Floor, Pearl Assurance Buildings, Land of Green Ginger Hull, Humberside HU1 2EA Hull, Humberside HU1 2EA (GB)