(19)

(11)

EP 0 423 259 A1

(12)

(43) Date of publication: 24.04.1991 Bulletin 1991/17 (21) Application number: 90904054.0 (22) Date of filing: 07.02.1990

(51) International Patent Classification (IPC):  F25J 1/ 00( . ) C01B 31/ 22( . ) B01J 19/ 00( . ) (86) International application number: PCT/US1990/000691 (87) International publication number: WO 1990/009347 (23.08.1990 Gazette 1990/20)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 08.02.1989 US 19890308169 (71) Applicant: COLD JET, INC. Cincinnati, OH 45150 (US)	(72) Inventor: LLOYD, Daniel, L. Mason, OH 45040 (US) (74) Representative: Carpmael, John William Maurice, et al  CARPMAELS & RANSFORD 43 Bloomsbury Square London, WC1A 2RA London, WC1A 2RA (GB)