US 5,853,445 AGranted

Interlocking dual filter

AssigneeDana Corporation

InventorsJohnny H. Wong, Gregory Keith Rhyne, Demetrios Tsengouras

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Abstract

An interlocking dual filter includes a first filter element having a filter media enclosed by a frame and a sealing gasket disposed around the frame. The frame of the first filter element has a depending flange which defines a space for receiving a second filter element having a different filter media. The flange includes a plurality of recesses which form a first latching arrangement. The first recesses are aligned with latching tabs which extend laterally from the frame of the second filter element so that when the second filter element is placed within the frame, the second filter element latches with the first filter element. In accordance with one embodiment, the filter media of the first and second filter elements are different so that the filter assembly may be customized to accommodate various air stream conditions and utilizations.

Claims11

Dependent claims

An air filter assembly for mounting in a housing, wherein the air filter assembly comprises:

a first filter element panel for filtering particles, the first filter element panel having an upstream side and a downstream side and including a first filter media mounted in a first filter frame, the first filter frame having a first latching arrangement proximate a downstream side thereof;
a second filter element panel for filtering particles, the second filter element panel having an upstream side and a downstream side and including a second filter media mounted in a second filter frame, the second filter frame having a second latching arrangement at an upstream side thereof for coupling with the first latching arrangement on the downstream side of the first filter, and
a peripheral flange around the juncture of the first and second filter element wherein the air is constrained to flow substantially only from the first filter element through the second filter element.

Dependencies are inferred from the claim text.