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EP 1 177 375 A1

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(43) Date of publication: 06.02.2002 Bulletin 2002/06 (21) Application number: 00904657.4 (22) Date of filing: 15.02.2000

(51) International Patent Classification (IPC)7: F02M 47/02, F02M 57/02, F02M 59/10, F02M 61/16, C23C 14/02 (86) International application number: PCT/US0040/001 (87) International publication number: WO 0161/182 (23.08.2001 Gazette 2001/34)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: CATERPILLAR INC. Peoria Illinois 61629-6490 (US)

(72) Inventors: DAM, Chuong, Q.,C/O Caterpillar Inc. Peoria,Illinois 61629-6490 (US) LONG, Michael, C.,C/O Caterpillar Inc. Peoria,Illinois 61629-6490 (US) SHAFER, Scott, F.,C/O Caterpillar Inc. Peoria,Illinois 61629-6490 (US) TOMASESKI, Jay, E.,C/O Caterpillar Inc. Peoria,Illinois 61629-6490 (US) (74) Representative: Wagner, Karl H., Dipl.-Ing. et al Wagner & Geyer, Patentanwälte, Gewürzmühlstrasse 5 80538 München 80538 München (DE)