(19)

(11)

EP 0 683 849 A1

(12)

(43) Date of publication: 29.11.1995 Bulletin 1995/48 (21) Application number: 94906136.0 (22) Date of filing: 31.01.1994

(51) International Patent Classification (IPC):  F01N 1/ 06( . ) F01N 1/ 10( . ) F01N 1/ 08( . ) F01N 1/ 24( . ) (86) International application number: PCT/DK1994/000049 (87) International publication number: WO 1994/018438 (18.08.1994 Gazette 1994/19)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 01.02.1993 DK 19930000112 (71) Applicant: SILENTOR A/S DK-2860 Soborg (DK)	(72) Inventors: FREDERIKSEN, Eyvind DK-2860 S borg (DK) FREDERIKSEN, Svend S-222 27 Lund (SE) (74) Representative: WITTRUP, Flemming, et al  c/o Hofman-Bang & Boutard A/S Adelgade 15 DK-1304 Copenhagen K DK-1304 Copenhagen K (DK)