Integral filter and grill assembly for a cold air return

Details Integral filter and grill assembly for a cold air return Integral filter and grill assembly for a cold air return

2006-05-16

2009-08-18

Greene, Jason M (Department: 1797)

Gas separation

With separate flow line access means or filter media passage...

Access means is clamping or coupling means for unit filter...

C055S481000, C055S490000, C055S491000, C055S492000, C055S493000, C055S495000, C055S508000, C055S511000, C055SDIG032, C055SDIG031, C055SDIG037, C454S309000

Reexamination Certificate

active

07575617

ABSTRACT:
A grill and filter assembly having a replaceable filter element includes a rectangular frame assembly, grill insert and a filter. The rectangular frame assembly has an outer frame forming a face and an outwardly extending wall extension. The grill insert has a plurality of louvers and an outwardly extending filter housing. It also includes a plurality of flanges extending inwardly from the filter housing to a depth of no greater than the thickness of standard drywall. The filter assembly includes a loop covered with a fabric filter material. The loop is capable of flexure and the filter is inserted within the filter housing and under the flanges. A plurality of magnets are attached to the wall extension and located to magnetically hold the grill insert within the frame assembly. The flanges and filter housing are structurally adapted to allow the filter to be flexed and slid from under the flanges to remove it from the grill insert.

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File History of U.S. Appl. No. 08/775,774, Gary D. Ferguson, Dec. 1996.

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