Patent ID: 7261814

Claim:
A filter for use in engines or transmissions, comprising: an inlet-side cover having a wave-like region along the periphery of said inlet-side cover, wherein said inlet-side cover further comprises at least one wave-like shaped inlet-side filter media support, separate from said wave-like region along the periphery, disposed within the periphery of said inlet-side cover; an outlet-side cover having a wave-like region along the periphery of said outlet-side cover, wherein said outlet-side cover wave-like region is in a generally complementary alignment with said inlet-side cover wave-like region along the periphery, wherein said outlet-side cover further comprises at least one wave-like shaped outlet-side filter media support, separate from said wave-like region along the periphery, of the outlet-side cover disposed within the periphery of said outlet-side cover, wherein the inlet-side filter media support aliens with the outlet-side filter media support; and a filter media fixed in a non-planar configuration between said wave-like regions of said inlet-side and outlet-side covers.