Gas separation: apparatus – Solid sorbent apparatus
Reexamination Certificate
2004-04-22
2008-09-09
Hopkins, Robert A (Department: 1797)
Gas separation: apparatus
Solid sorbent apparatus
C096S135000, C096S154000, C055S385300, C123S19800E, C123S519000
Reexamination Certificate
active
07422628
ABSTRACT:
A hydrocarbon adsorption unit for recovery of volatile hydrocarbons which emanate from several sources and which would otherwise be released into the atmosphere through the air cleaner of an automobile engine when the engine is shut-off. The unit is positioned in the air intake system such that all air flowing through the engine passes through the unit. The unit comprises a housing having an air inlet and an air outlet. The housing contains a substrate and a volatile hydrocarbon adsorber material coated on the surface of the substrate. The adsorber material may be silica gel, a molecular sieve and/or activated carbon. The material further contains a binder that will cause the material to adhere to the surface of the substrate.
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Foong John S.
Hoke Jeffrey B.
BASF Catalysts LLC
Brown Melanie
Diehl Servilla LLC
Hopkins Robert A
Servilla Scott S.
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