Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Reexamination Certificate
2007-04-06
2008-11-25
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
C123S184210
Reexamination Certificate
active
07455042
ABSTRACT:
A suction system for an internal combustion engine has a device for avoiding the ingress of water and includes a switch-over valve between a primary intake line and a secondary intake line. To provide improved protection against water ingress, the switch-over valve is controlled so that during off-road travel there is a change-over from a primary air intake to a secondary air intake.
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patent: 6564768 (2003-05-01), Bauer et al.
patent: 6705272 (2004-03-01), Leipelt et al.
patent: 6761748 (2004-07-01), Schenk et al.
patent: 37 36 777 (1988-12-01), None
patent: 100 53 146 (2002-05-01), None
German Office Action dated Dec. 18, 2006, including English translation (Seven (7) pages).
Ali Hyder
Cronin Stephen K.
Crowell & Moring LLP
Dr. Ing. h.c.F. Porsche Aktiengesellschaft
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