Appeal No. 2002-1974
Application No. 09/023,953
BACKGROUND
The subject matter of Appellants’ invention relates to a catalytic converter for a
vehicle with an internal combustion engine. According to Appellants, the catalytic
converter is said to partially reduce the proportion of hydrocaxbon in exhaust gases that
have very high proportions of hydrocarbon. (Brief, p. 9). Claim 1, which is
representative of the claimed invention, appears below:
1. A catalytic converter for a vehicle with an internal combustion engine,
comprising:
a jacker tube having a wall with an inner surface and defining therein a flow
passage with a given cross-sectional area;
a honeycomb body having a metal sheet disposed in a vicinity of the inner
surface of the jacket tube, said metal sheet being at least partially coated
with a catalytically active effective to convert hydrocarbons in an exhaust
gas having a hydrocarbon concentration of up to 4% by volume in the
exhaust gas and being disposed such that a predominant, contiguous central
portion of the given cross-sectional area of said flow passage remains free
of said metal sheet;
said metal sheet being corrugated and defining flow channels having a size
and a shape defining a channel density of 25 to 200 cspi, said central
portion being bound by a corrugated surface of said metal sheet.
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