Patent ID: 6875250
Filing Date: 2005-04-05
Classification: B01D,Y10S

Abstract:
1. A deep format filter element having i) a filter medium with a plurality of edge planes defining a medium periphery and first and second opposite facing face planes through which air to be filtered can pass, and ii) a frame enclosing the medium periphery, said frame having a plurality of body sections, each body section having a wall in generally facing relationship to one of the medium edge planes, at least first and second body sections each having a mounting flange, each of said mounting flanges having a generally rectangular cross section defined by first and second side panels and first and second end panels, each of said mounting flanges simulating a part of the periphery of a shallow filter element, said frame comprising first and second cardboard sheets forming individual body sections of the frame and the panels of the mounting flange, said first cardboard sheet including for each mounting flange at least two inside folds defining edges of the mounting flange's first end panel and first and second side panels, at least one outside fold defining an edge of the second side panel of the mounting flange, and said second cardboard sheet forming the second end panel.