(19)

(11)

EP 0 943 072 A1

(12)

(43) Date of publication: 22.09.1999 Bulletin 1999/38 (21) Application number: 97947991.0 (22) Date of filing: 25.11.1997

(51) International Patent Classification (IPC):  F24F 11/ 00( . ) (86) International application number: PCT/NL1997/000644 (87) International publication number: WO 1998/023904 (04.06.1998 Gazette 1998/22)

(84) Designated Contracting States: BE DE DK FR GB NL SE (30) Priority: 27.11.1996 NL 19961004626 (71) Applicant: Berli Holding B.V. 5854 NA BERGEN (NL)	(72) Inventor: BOEKELMAN, Willem, Antonius NL-5915 HW Venlo (NL) (74) Representative: Veldman-Dijkers, Cornelia G.C., Ir., et al  Algemeen Octrooibureau, P.O. Box 645 5600 AP Eindhoven 5600 AP Eindhoven (NL)