Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
209 words
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, and a 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.
Claim 2
Dependent Claim
209 words
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, and a 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.
Claim 3
Dependent Claim
34 words
The air filter of claim 1 and further including means for attaching said fingers to said grilles comprising grooved portions formed in said grilles and means for attaching said fingers to said grooved portions.
Claim 4
Dependent Claim
43 words
The air filter of claim 2 wherein said means for attaching said fingers to said grooved portions comprises elongated strips from which said fingers extend, said strips being fitted in said grooved portions and means for retaining said strips in said grooved portions.
Claim 5
Dependent Claim
15 words
The air filter of claim 1 wherein said fingers are linearly aligned with each other.
Claim 6
Dependent Claim
34 words
The air filter of claim 1 wherein the fingers of said second set are substantially longer than the fingers of said first set, said first and second set of fingers being in overlapping relationship.