Patent ID: 6074450
Filing Date: 2000-06-13
Classification: B01D,F24F

Abstract:
An air filter comprising:front and rear grilles,a frame attached to said front and rear grilles, joining said grilles together to form a container structure therewith,an air permeable filter element in the form of a pleated sheet attached at opposite ends to opposing sides of said frame, said pleated sheet running between said front and rear grilles over substantially the entire extent of said grilles, said filter element having one side which forms a permeable stiff backing which provides support for said filter element and an opposite side which forms an air filter,a first set of individual separate fingers, each of said fingers being attached to the inner wall of said front grille, said fingers being spaced from each other there along such that each of said fingers fits into a separate one of the pleats on one side of said filter element, anda second set of individual separate fingers, each of said fingers being separately attached to the inner wall of said rear grille, said fingers being spaced from each other there along such that each of the fingers of said second set fits into a separate one of the pleats on the side of said filter element opposite to said one side thereof.