Abstract: In the description and drawings a final fiberglass product is disclosed. The final fiberglass product may have a fiber curl layer, a fiber skin layer, and a fiber loft layer between the fiber curl layer and the fiber skin layer. The fiber curl layer may be on an unfiltered air entry side of the final fiberglass product and have a plurality of generally sinusoidal fiber bundles therein.

Abstract: A filter media product and method of making the same wherein the filter media is pleatable and has at least one support scrim comprised of a melt bonded non-woven material or a fuse bonded non-woven material bonded to a layer of expanded polytetrafluoroethylene. The filter media may have a single support scrim with one or more layers and optionally may have a support scrim on both an upstream and downstream surface where both or neither support scrim is multilayered. The filter media may have an efficiency greater than, equal to, or less than HEPA.

Abstract: A method for making a pocket filter assembly is provided. Two side and two end header elements each having a pair of longitudinally extending side walls and a longitudinally extending bottom wall forming a longitudinally extending channel are joined at ends forming a rectangular header with two opposing sides and two opposing ends. The bottom wall and side walls of each of the opposing sides and the bottom walls and said side walls of each of said opposing ends become adjacent forming a rectangular header with a continuous bottom wall and continuous inner and outer side wall having a continuous channel therein. An upstream perimeter portion of a pocket filter element is inserted in the continuous channel and a liquid polymeric material is placed therein. The polymeric material is solidified forming a header frame having the upstream perimeter portion of the filter element unitary therewith.

Abstract: An odor filtration media having a chemical reagent which removes odor causing fluid contaminants from a fluid stream through the use of granular or shaped media have a chemical composition including permanganate is provided. A method of producing the odor absorbing media having a chemical reagent is also provided and comprises the steps of mixing H2O, KMnO4, and at least one salt adding ions or ionic compounds selected from the group consisting of Na+, Li+, K+, NH4+, Cl?, SO42?, BO32?, CO32?, PO43?, NO3? and combinations thereof, or from the group consisting of Na+, Li+, K+, NH4+, Mg2+, Ca2+, Cl?, BO32?, NO3? and combinations thereof, forming an impregnating solution. The impregnating solution is heated and combined with a support material to form a coherent mass.

Abstract: A filter cassette rack and tracks wherein the rack is a three dimensional rectangular rack having at least two opposing open sides, sealing and non-sealing support tracks span the rack providing filter cassette guides and sealing means for a plurality of filter cassettes.

Abstract: A filter media product and method of making the same wherein at least two filter media thicknesses of differing average coarse and fine fiber sizes are held in intertangled relationship forming a gradient density fibrous filter media with the fiber sizes having an overall average in successive thicknesses being either greater or less than the average fiber size of the intertangled fiber thickness(es).

Abstract: A filter media product and method of making the same wherein the filter media is pleatable and has at least one support scrim comprised of a melt bonded non-woven material or a fuse bonded non-woven material bonded to a layer of expanded polytetrafluoroethylene. The filter media may have a single support scrim with one or more layers and optionally may have a support scrim on both an upstream and downstream surface where both or neither support scrim is multilayered. The filter media may have an efficiency greater than, equal to, or less than HEPA.

Abstract: A cabinet for an air handling unit includes a cabinet assembly being formed framelessly of a plurality of panel assemblies, each panel assembly being formed of two spaced apart metallic panels embracing an intermediate core and wherein the plurality of panel assemblies provides the structural strength of the cabinet assembly. A method of forming a cabinet for an air handling unit is further included.

Abstract: An arrangement for producing a fibrous mat from a heated die source wherein the produced mat includes a first layered, preselected fiber portion of substantially straight fibers produced by directing such fibers directly to a collector source and a second layered preselected fiber portion of substantially curled fibers produced by diverting and exerting an external vortically creative curling force thereon before reaching the collector source.

Abstract: A unified pleated filter arrangement including a unified method and product wherein successive pleat flanks are spaced by communicably facing increments of spacing material with the pleat flanks being a selectively spaced and uniformly level geometric configuration.

Abstract: A pleated fluid filter having a pair of spaced longitudinally extending flanks is formed by at least one layer of a fluid filter media. A spacing member is integral with one of the flanks and extends outwardly in contacting relation with an adjacent flank.

Abstract: A filter cassette rack and tracks wherein the rack is a three dimensional rectangular rack having at least two opposing open sides, sealing and non-sealing support tracks span the rack providing filter cassette guides and sealing means for a plurality of filter cassettes.

Abstract: A filter cassette having opposing rectangular side panels with at least one pair of filter media containers there between wherein each filter media container has a pair of opposing rectangular end plates and a pair of opposing rectangular media screens, each pair of containers are in a “V” configuration with adjacent end plates having a unitary configuration and at least one media fill aperture for each media container on a non-sealing side of the filter cassette, outermost end plates on a sealing side of the filter cassettes extend between corners of opposing side panels forming a substantially smooth sealing surface, and a fill cap is attached to each unitary pair of end plates having media fill apertures enclosing the media fill apertures.

Abstract: A filter media product and method of making the same wherein at least two independent filter media thicknesses of differing coarse and fine pore sizes are held in face-to-face relationship with the pore sizes being so calculated that the overall average pore size of successive thicknesses is smaller than the pore size of the finest fiber thickness.

Abstract: A filter media product and method of making the same wherein at least two independent filter media thicknesses of differing coarse and fine pore sizes are held in face-to-face relationship with the pore sizes being so calculated that the overall average pore size of successive thicknesses is smaller than the pore size of the finest fiber thickness.

Abstract: A valve comprises a housing (1) having an inlet (4) and an outlet (5), and a pressure sensing port (8). A piston (6) slides in a part (3) of the housing (1) in response to a difference between a first fluid pressure at the pressure sensing port on the one side of the piston, and a second fluid pressure at the inlet and/or outlet on the other side of the piston (6). A valve member (7) carried by the piston is operable thereby to close the inlet (4) when said second fluid pressure is less than a value sufficiently greater than said first fluid pressure. The valve member (7) is movable with respect to the piston (6) to facilitate closing of the inlet (4), in response to a fluid flow from the housing (1) to the inlet (4), when the piston is not acting to close the inlet.

Abstract: A filtering apparatus having a filter retrieval apparatus, an integrated jib, and a clamping assembly for providing a seal between a filter and a cabinet.