Patent ID: 8795522
Filing Date: 2014-08-05
Classification: B01D,F01M,Y10T

Abstract:
1. An oil filter, comprising: a hollow filter housing defining a chamber therein, the filter housing having an inlet and an outlet with a flow path therebetween; a mechanically active filter member disposed inside the filter housing in the flow path; and a chemically active filter member disposed inside the filter housing in the flow path, the chemically active filter member including a plurality of composite oil additive pellets bound together with a binder, wherein the bound pellets are impregnated with an alkaline composition comprised of at least one alkaline agent and wherein at least a portion of a surface of the bound and impregnated pellets is coated with a barrier material selected from the group consisting of waxes, alkylsiloxane polymers, methacrylic acid copolymers, stearic acid based films, and mixtures thereof.