(19)

(11)

EP 1 090 214 A1

(12)

(43) Date of publication: 11.04.2001 Bulletin 2001/15 (21) Application number: 99957189.6 (22) Date of filing: 14.06.1999

(51) International Patent Classification (IPC)7: F01N 3/28, F01N 7/18 (86) International application number: PCT/NL9900/368 (87) International publication number: WO 9967/513 (29.12.1999 Gazette 1999/52)

(84) Designated Contracting States: AT BE CH DE ES FR GB GR IT LI LU NL SE (30) Priority: 23.06.1998 NL 1009468 (71) Applicant: GRAND PRIX SILENCERS B.V. NL-6045 JD Roermond (NL)	(72) Inventor: GROBBENHAAR, Hermanus, Gerhardus NL-6075 CD Herkenbosch (NL) (74) Representative: Eveleens Maarse, Pieter  Arnold & Siedsma,Advocaten en Octrooigemachtigden,Sweelinckplein 1 2517 GK Den Haag 2517 GK Den Haag (NL)