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;
a second set of retainer clips mounted on the posts releasably securing the prefilter over the primary filter; and
wherein the first and second sets of clips are rotatable relative to the rectangular inlet frame to have a compression portion that moves over the rectangular recess for causing compression, wherein the clips can be rotated such that the first and second sets of clips are clear of the rectangular recess to allow removal of the primary filter and the prefilter.
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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.
76 Citations
24 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; a second set of retainer clips mounted on the posts releasably securing the prefilter over the primary filter; and wherein the first and second sets of clips are rotatable relative to the rectangular inlet frame to have a compression portion that moves over the rectangular recess for causing compression, wherein the clips can be rotated such that the first and second sets of clips are clear of the rectangular recess to allow removal of the primary filter and the prefilter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 21, 23, 24)
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9. 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; first retainers mounted on the rectangular inlet frame releasably securing the primary filters along the seating surface; and the first retainers rotatable about a rotational axis that is perpendicular to the seating surface to selectively secure or release the primary filters from the inlet frame. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22)
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20. 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; a second set mounted on the posts releasably securing the prefilter over the primary filter; and wherein the second set of retainer clips rotate about an axis perpendicular to the upstream face of the outer peripheral flange between an open orientation in which the prefilter can be seated against and unseated from the upstream face of the outer peripheral flange and a locked orientation in which the prefilter is secured against the upstream face of the outer peripheral flange and cannot be unseated from the upstream face of the outer peripheral flange.
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Specification