Cross-flow filter media and filter assembly

A filter media for a fluid medium, the filter media comprising:

• a first sheet having an inner surface and an outer surface;
• a second sheet having an inner surface and an outer surface, wherein the inner surface of the first sheet and the inner surface of the second sheet at least in part define at least two fluid channels between the first sheet and the second sheet to define a filter media having a first axial end and a second axial end;
• a generally impermeable bead disposed in said at least two fluid channels at said first axial end to prevent fluid from passing thereby;
• wherein the at least two fluid channels extend between the first axial end and the second axial end,
• and wherein, interior to said axial ends, the first and second sheets define at least one opening between a first one of said at least two fluid channels and a second one of said at least two fluid channels such that fluid can uninterruptedly flow between the first one of said at least two fluid channels and the second one of the at least two fluid channels,
• and further wherein the at least two fluid channels and the at least one opening are defined at least in pan by a surface characteristic of the first sheet and a surface characteristic of the second sheet.

A filter media comprising:

• a first sheet of material having one or more facing surfaces;
• and
• a second sheet of material having an inner surface, wherein the first and second sheets of material form,
• a first fluid flow channel providing a first fluid flow path, and
• at least a second fluid flow channel providing at least a second fluid flow path, wherein the first and second fluid flow channels are adapted to direct a fluid medium, without interruption, between the first fluid flow path and second fluid flow path, wherein sheet of filter material is rolled about an axis to form a core of filter layers, wherein the surface characteristic of the one or more facing surfaces of the first sheet of material is irregularity-free, wherein the surface characteristic of the inner surface of the second sheet of material includes a plurality of interrupted surface irregularities, wherein the plurality of interrupted surface irregularities are interrupted embossments.

A filter media comprising:

• a sheet of filter material including,
• a first portion having an inner surface, and
• a second portion having an inner surface,
• wherein the first portion and the second portion define a fold line, wherein the inner surfaces are positioned adjacent one another when the first portion and the second portion are folded about the fold line to provide:
• a first fluid flow channel providing a first fluid flow path, and
• at least a second fluid flow channel providing at least a second fluid flow path,
• wherein the first and second fluid flow channels allow uninterrupted fluid movement between the first fluid flow path and the second fluid flow path,
• wherein sheet of filter material is rolled about an axis to form a core of filter layers.