FILTER FRAME HOUSING AND FILTER FOR ANIMAL CONFINEMENT BUILDING
First Claim
Patent Images
1. A filter assembly, comprising:
- a filter housing assembly comprising a rectangular inlet frame having a rectangular inlet opening, wherein the rectangular inlet frame defines a rectangular recess having a seating surface in surrounding relation of the rectangular opening;
a primary filter comprising at least one of a V-bank filter and a rectangular filter that includes filter media that is at least 3 inches deep, the primary filter having an outer peripheral flange seated against the seating surface, the primary filter extending through the rectangular inlet opening into the filter housing assembly;
a prefilter upstream of the primary filter and seated against an upstream face of the outer peripheral flange;
a rectangular wall of the inlet frame surrounding the rectangular inlet opening;
a plurality of posts arranged around the rectangular wall;
a first set of retainer clips mounted on the rectangular wall in a first plane releasably securing the primary filter along the seating surface; and
a second set of retainer clips mounted on the posts releasably securing the prefilter over the primary filter.
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Abstract
A filter assembly including a rectangular inlet frame having a rectangular inlet opening to receive a primary filter and optional a prefilter. The filter assembly may include a rectangular outlet frame and a housing body that is collapsible to have a flattened shipping state and an erect state. The rectangular inlet frame may also be used as a housing by itself to support and house primary filters and prefilters. A gridwork including one or more grid dividers may be used in the rectangular inlet frame to provide 2 or more openings for receipt of filters.
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Citations
25 Claims
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1. A filter assembly, comprising:
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a filter housing assembly comprising a rectangular inlet frame having a rectangular inlet opening, wherein the rectangular inlet frame defines a rectangular recess having a seating surface in surrounding relation of the rectangular opening; a primary filter comprising at least one of a V-bank filter and a rectangular filter that includes filter media that is at least 3 inches deep, the primary filter having an outer peripheral flange seated against the seating surface, the primary filter extending through the rectangular inlet opening into the filter housing assembly; a prefilter upstream of the primary filter and seated against an upstream face of the outer peripheral flange; a rectangular wall of the inlet frame surrounding the rectangular inlet opening; a plurality of posts arranged around the rectangular wall; a first set of retainer clips mounted on the rectangular wall in a first plane releasably securing the primary filter along the seating surface; and a second set of retainer clips mounted on the posts releasably securing the prefilter over the primary filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A filter assembly, comprising:
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a rectangular inlet frame having a plurality of rectangular inlet openings, wherein the rectangular inlet frame defines a rectangular recess, and having a seating surface in surrounding relation of each rectangular inlet opening; the rectangular inlet frame being molded of material comprising plastic;
the rectangular inlet frame further including at least one divider grid to provide at least two of said rectangular inlet openings;a plurality of primary filters installed into the rectangular inlet openings, each primary filter comprising at least one of a V-bank filter and a rectangular filter that includes filter media that is at least 3 inches deep, each primary filter having an outer peripheral flange seated along the seating surface, each primary filter extending through the rectangular inlet opening; and first retainers mounted on the rectangular inlet frame releasably securing the primary filters along the seating surface. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An animal confinement facility including at least one filter assembly, comprising:
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an animal confinement building having a ventilation system with an air flow inlet; a substantially plastic filter housing mounted inline with the air flow inlet to filter air flowing therethrough; and a primary filter mounted in the substantially plastic filter housing, the filter being at least MERV 15 or higher with a filtration efficiency sufficient to prevent transmission of the PRRSV, and sufficient to filter sub-micron sized viruses from an airflow stream flowing through the air flow inlet. - View Dependent Claims (22, 23, 24, 25)
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Specification