| 主权项 |
1. A filter element for removing one or more substances from a fluid flowing through the filter element, the filter element comprising:
a pleated composite having at least first and second opposite ends and a plurality of pleats extending between the first and second opposite ends, wherein each pleat has an open end, a folded end, and a pair of legs extending between the open end and the folded end, wherein the pleated composite includes a filter medium layer having first and second opposite sides and a grooved mesh drainage layer pleated with the filter medium layer along one of the first and second sides of the filter medium layer, the grooved mesh drainage layer having a plurality of strands having deformed portions and a plurality of grooves formed by the deformed portions in the strands, the plurality of grooves extending along one or both legs of each pleat, and wherein the grooved mesh drainage layer directs fluid via the grooves to or from said one of the first and second sides of the filter medium layer and the filter medium layer removes one or more substances from fluid flowing through the filter medium layer from the first side of the filter medium layer to the second side of the filter medium layer, and first and second end elements mounted to the first and second ends, respectively, of the pleated composite. |
