Patent ID: 6984342

Claim:
A method of making an electrically conductive fuel filter housing, comprising the steps of: a) injecting a flowable mixture into a mold cavity having formed within a hollow mold configured to shape a fuel filter housing structure, said mold cavity having an outer periphery; said flowable mixture comprising: a polymeric material; a first electrically conductive additive selected from the group consisting of metallic fibers and metallic particles; and a second electrically conductive additive selected from the group consisting of carbon fibers and carbon particles; whereby the first electrically conductive additive migrates away from the outer periphery of the mold cavity, and the second electrically conductive additive migrates toward the outer periphery of the mold cavity; b) curing the polymer in the hollow mold to form a molded fuel filter housing structure; and c) ejecting the molded fuel filter housing structure from the mold.