Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent
1990-05-07
1993-03-23
Chiesa, Richard L.
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
55350, 55486, 55511, 55DIG36, 126299R, 454 49, B01D 3502
Patent
active
051960400
ABSTRACT:
A grease filter and collection assembly for roof ventilators and the like includes a frame structure having a generally central aperture through which a grease discharge vent projects when the frame structure and trap assembly are installed surrounding the vent, and a replaceable grease-trapping material is removably secured in the frame structure so that the grease-trapping material is exposed within the aperture for trapping grease discharged from the vent. In a preferred embodiment, the frame structure is assembled from extruded frame members which integrally include a plurality of channels for securing and mounting the assembly for retaining the grease-trapping material within the frame structure. Upper and lower channels accommodate corner connections of the frame members. The frame members have side walls which peripherally enclose the grease-trapping material which is tucked between the upper and lower channel inwardly extending from the side wall. A preferred grease-trapping material includes a layered composite of grease filtering and trapping materials in which an upper-porous layer for trapping particulate debris is also permeable for passage of liquid grease therethrough into a lower layer which absorbs and retains the grease.
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Cook; "Cook's Grease Terminator"; Loren Cook Co.; Mar. 1989.
Bain Charles E.
Barry Christopher S.
Chwala Kevin R.
Jodoin Jean L.
Malloy Patrick A.
Chiesa Richard L.
Dundee Manufacturing Co. Inc.
Grease Guard, Inc.
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