Patent ID: 6682843
Filing Date: 2004-01-27
Classification: C25B,H01M,Y02E

Abstract:
A screen/frame integral assembly, comprising:at least two screen layers, each having an interior portion with a porosity and having a periphery, a first screen layer having first openings having a size of up to about 0.077 inches (1.96 mm) by up to about 0.033 inches (0.838 mm), wherein a thickness of said first screen layer is up to about 0.005 inches (0.127 mm), and wherein said size of said first openings and said thickness of said first screen layer are interrelated such that the combination of said size and said thickness enable the passage of water and a gas through said first openings; and a second screen layer having second openings, wherein said second screen layer is disposed parallel to and in contact with said first screen layer, wherein at least a portion of said second screen layer has a thickness greater than the thickness of the first screen layer; and a frame disposed through and about the periphery of each screen layer, wherein the frame comprises a frame material adapted to be extruded into the periphery of the screen while substantially maintaining the porosity of said interior portion, said frame having fluid conduits disposed therein, and wherein said frame material bonds said at least two screen layers together.