Patent ID: 9185877
Filing Date: 2015-11-17
Classification: A01K,B01D,F24F,Y10T

Abstract:
1. A filter assembly, comprising: a rectangular inlet frame having a seating surface in surrounding relation of a rectangular inlet opening; a rectangular outlet frame; a housing body being collapsible to have a flattened shipping state and an erect state, the collapsible housing body in the erect state being rectangular and interposed between the rectangular inlet frame and the rectangular outlet frame in an assembled state; at least one filter having filter media installed in the rectangular inlet opening in generally sealing relation thereto and projecting from the inlet frame toward the outlet frame in the assembled state; wherein the at least one filter includes an outer peripheral flange seated against the seating surface; wherein the rectangular inlet frame defines a rectangular recess having the seating surface in surrounding relation of the rectangular inlet opening, wherein the at least one filter includes 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, and a prefilter upstream of the primary filter and seated against an upstream face of the outer peripheral flange; a first rectangular gasket interposed between the outer peripheral flange of the primary filter and the sea surface forming a seal therebetween; and compression clips mounted on an outwardly facing side of the rectangular inlet frame, the clips engaging the prefilter to retain the prefilter; and at least two clips compressing the primary filter and the first rectangular gasket against the seating surface.