Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Molecular oxygen or ozone component
Reexamination Certificate
2005-12-29
2008-12-09
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Molecular oxygen or ozone component
C423S245100, C423S245300, C422S120000, C422S122000, C422S168000, C422S169000, C422S170000, C422S171000, C422S177000, C422S180000, C422S181000, C422S186220, C422S198000, C422S211000
Reexamination Certificate
active
07462339
ABSTRACT:
The present invention is directed to an improved apparatus and method of minimizing catalyst poisoning by inorganic deposits from lube oil additives and particulate matter, especially in aircraft. More specifically, the present invention is directed to an air purification system comprising an upstream metallic foam trap and downstream converter, wherein the trap physically blocks inorganic deposits and particulate matter from poisoning the downstream catalysts. The present invention is also directed to a metallic foam trap containing a coat comprising a first metallic thermal arc sprayed layer and optionally a second refractory metal oxide.
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Galligan Michael Patrick
Lechelt Rudolph H.
BASF Catalysts LLC
Brown Melanie L.
Drinker Biddle
Loeb Bronwen M.
Vanoy Timothy C
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