Air plenum filter sealing system

Gas separation – With means securing or retaining separating media – Unit or cohesive sheet-like media in flow line or frame

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Details

55492, 55496, 55497, 55501, 55DIG31, 55DIG35, B01D 4610

Patent

active

061267082

ABSTRACT:
An air duct has a filter mount opening originally intended to accept a shallow filter element for filtering air entering the duct. The opening has an interior flange whose original purpose was to support the shallow filter element. This flange has interior edges defining an air passage opening. The invention is implemented a filter unit including a frame and a deep filter element mounted in the frame. The frame has dimensions allowing the filter unit to replace the conventional shallow filter element with the frame inserted into the air passage opening and closely spaced to all of the interior edges. A resilient gasket is mounted adjacent to the opening's interior flange and projects slightly into the air passage opening so as to contact the deep filter element's frame. The gasket prevents air leakage between the interior flange's interior edges and the frame. In one embodiment, the frame has a flange to mate with a surface of the air passage opening's interior flange so as to prevent air leakage and to position and support the filter unit.

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