Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Reexamination Certificate
2000-03-09
2003-12-30
Tran, Hien (Department: 1764)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
C422S171000, C422S177000, C055S521000, C055S385300, C055SDIG003
Reexamination Certificate
active
06669913
ABSTRACT:
BACKGROUND AND SUMMARY
The invention relates to exhaust emission devices for internal combustion engines, including diesel engines, and more particularly to catalytic converters and to filters.
Various diesel exhaust aftertreatment systems require that the exhaust be directed through a catalytic component and also through a filter component to achieve emissions and/or particulate (e.g. soot) reduction. The present invention provides a simple system combining these devices in a singular unit. In a desirable aspect, the invention further maintains exact axial alignment of catalytic and filter flow channels and simplifies packaging.
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Andrus Sceales Starke & Sawall LLP
Fleetguard Inc.
Tran Hien
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