Liquid purification or separation – With means to add treating material – Plural distinct separators
Reexamination Certificate
2011-08-30
2011-08-30
Smith, Duane (Department: 1778)
Liquid purification or separation
With means to add treating material
Plural distinct separators
C210S203000, C210S206000, C210SDIG013
Reexamination Certificate
active
08007667
ABSTRACT:
A filtration device is provided that includes a filter component and an additive component. The filter component includes concentrically arranged filtering elements disposed in a filter-in-filter configuration. The additive component includes at least one additive material that is introduced into a working fluid to be filtered. The filter component and additive component provide an assembly for a filtration system that would filter a variety of working fluids. The filter component and additive component provides an assembly that can filter fluids more efficiently. As a result, fluids may enjoy, for example, extended drainage intervals and thereby reduce component wear.
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Abdalla Wassem
Bagci Ismail C.
Herman Peter K.
Johnson Mark J.
Loftis Ted S.
Cummins Filtration IP Inc.
Hamre Schumann Mueller & Larson P.C.
Schelkopf J. Bruce
Smith Duane
Stelling Lucas
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