(19)

(11)

EP 1 137 875 A1

(12)

(43) Date of publication: 04.10.2001 Bulletin 2001/40 (21) Application number: 99966060.8 (22) Date of filing: 08.12.1999

(51) International Patent Classification (IPC)7: F02M 31/13 (86) International application number: PCT/US9929/105 (87) International publication number: WO 0034/643 (15.06.2000 Gazette 2000/24)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 10.12.1998 US 209388 10.02.1999 US 248510 (71) Applicant: Phillips & Temro Industries Inc. Eden Praire,Minnesota 55344 (US)	(72) Inventors: PRUST, Andrew, J. Coon Rapids, MN 55448 (US) THIMMESCH, Jan, P. Eden Prairie, MN 55346 (US) (74) Representative: Cheyne, John Robert Alexander Mackenzie  Haseltine Lake & Co.,Imperial House,15-19 Kingsway London WC2B 6UD London WC2B 6UD (GB)