(19)

(11)

EP 0 840 840 A1

(12)

(43) Date of publication: 13.05.1998 Bulletin 1998/20 (21) Application number: 96911153.0 (22) Date of filing: 18.04.1996

(51) International Patent Classification (IPC):  F01N 3/ 28( . ) (86) International application number: PCT/SE1996/000499 (87) International publication number: WO 1996/034188 (31.10.1996 Gazette 1996/48)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 27.04.1995 SE 19950001556 (71) Applicant: Nilsson, Sven Melker 430 50 Kallered (SE)	(72) Inventor: Nilsson, Sven Melker 430 50 Kallered (SE) (74) Representative: Ferkinghoff, Claes-Göran, et al  AWAPATENT AB, Södra Hamngatan 37-41, P.O. Box 11394 404 28 Göteborg 404 28 Göteborg (SE)