(19)

(11)

EP 0 881 935 A1

(12)

(43) Date of publication: 09.12.1998 Bulletin 1998/50 (21) Application number: 97930096.0 (22) Date of filing: 18.06.1997

(51) International Patent Classification (IPC):  F24F 7/ 06( . ) B01D 53/ 88( . ) B01D 53/ 86( . ) F24C 15/ 20( . ) (86) International application number: PCT/US1997/010550 (87) International publication number: WO 1997/048479 (24.12.1997 Gazette 1998/03)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 19.06.1996 US 19960020068P (71) Applicant: Halton Company Scottsville, KY 42164 (US)	(72) Inventors: BAGWELL, Rick, A. Scottsville, KY 42164 (US) PARVIN, Fuoad Bowling Green, KY 42104 (US) GORDON, Eliott Cleveland, OH 44102 (US) CATAN, Mark, A. Glen Cove, NY 11542 (US) (74) Representative: Whitten, George Alan, et al  R.G.C. Jenkins & Co., 26 Caxton Street London SW1H 0RJ London SW1H 0RJ (GB)