Air filter assembly

In an air filter assembly including a plurality of replaceable filter panels arranged in angularly disposed pairs within a support frame so as to define a plurality of adjacent Vees with the apexes of the Vees being disposed at the air outlet end of the assembly and the open ends of the Vees being disposed at the air inlet thereof, the improvement comprising:

• a plurality of generally rectangular and substantially identically configured panel end caps, a pair of said end caps being secured to extended ends of each of said filter panels and each of said end caps being substantially symmetrical about a central axis extending transversely therethrough and defining a pair of cam surfaces thereon proximate extended ends thereof, one of said cam surfaces on each of said end caps being disposed between each of said pairs of filter panels at the apex of the Vee defined thereby and being inclined toward the other panel in said pair and the other of said cam surfaces on each of said end caps being disposed adjacent the inlet end of said assembly;
• and
• locking means carried by the frame adjacent the inlet end of said assembly for engaging each of said other cam surfaces on said end caps and releasably holding portions of said panels in sealing engagement with the frame whereby upon sliding one panel in one of said pairs of panels into the support frame such that one of the cam surfaces on each of the end caps carried by said panel is disposed adjacent the air outlet end of said assembly and subsequently sliding the other of said panels in said pair rearwardly within the frame, one of the cam surfaces on each of the end caps carried by said other panel abuts and passes over one of the cam surfaces on the end caps carried by said one panel, forcing said panels outwardly and compressing portions of the sealing gaskets between said panels and the support frame and, upon engaging said locking means with said other cam surfaces on said end caps carried by said panels, a perimeter face seal about and between each of said panels is formed and maintained and, upon releasing said locking means, said panels can be removed from said frame for disposal and replacement.

In an air filter assembly including a plurality of replaceable filter panels arranged in angularly disposed pairs within a support frame so as to define a plurality of adjacent Vees with the apexes of the Vees being disposed at the air outlet end of the assembly and the open ends of the Vees being disposed at the air inlet end thereof, the improvement comprising:

• a plurality of generally rectangular panel end caps, a pair of said end caps being secured to extended end portions of each of said filter panels and each of said end caps defining a pair of cam surfaces thereon proximate extended ends thereof, one of said cam surfaces on each of said end caps being disposed between each of said pairs of filter panels at the apex of the Vee defined thereby for urging portions of said panels proximate said apexes into sealing engagement with the support frame and the other of said cam surfaces of each of said end caps being disposed adjacent the inlet end of said assembly;
• and
• a plurality of locking members carried by said frame adjacent the air inlet end of said assembly for engaging said other cam surfaces on said end caps and releasably holding portions of said panels in sealing engagement with said frame whereby a perimeter face seal about and between each of said panels and said frame is formed and maintained and, upon releasing the engagement of said locking members with said other cam surfaces, said panels can be removed from said frame for disposal and replacement.

In an air filter assembly including a plurality of replaceable filter panels arranged in angularly disposed pairs within a support frame so as to define a plurality adjacent Vees with the apexes of Vees being disposed at the air outlet end of the assembly and the open ends of the Vees being disposed at the air inlet end thereof and wherein camming means are carried by each pair of filter panels for urging portions of the panels proximate apexes defined thereby outwardly and into sealing engagement with the support frame, the improvement comprising:

• a plurality of generally rectangular and substantially identically configured panel end caps, each of said end caps defining a filter panel abutment surface and a wall extending about the perimeter of said surface substantially normally thereto, a pair of inclined cam surfaces at spaced locations in said wall, extended end portions of each of said filter panels being secured to one of said end caps adjacent the panel abutment surface and portions of said wall defined thereby, said cam surfaces being spaced from said filter panels and projecting inwardly therefrom such that one of said cam surfaces on each of said end caps is disposed between each of said pairs of filter panels adjacent the apex of the Vee defined thereby and is inclined toward the other panel in said pair and the other of said cam surfaces of each of said end caps is disposed adjacent the inlet end of said assembly and;
• a plurality of locking members carried by said frame adjacent the air inlet end of said assembly for engaging said other cam surfaces on said end caps and releasably holding portions of said panels in sealing engagement with said frame whereby a perimeter face seal about and between each of said panels and each of said frame is formed and maintained and, upon releasing the engagement of said locking members with said other cam surfaces, said panels can be removed from said frame for disposal and replacement.

An air filter assembly having multiple panels arranged in a plurality of Vees and defining an air inlet end and an air outlet end, said assembly comprising:

• a filter support frame;
• a plurality of pairs of replaceable rectangular filter panels, said panels defining extended end portions and being disposed within said frame so as to define a corresponding plurality of adjacent Vees wherein the apexes of said Vees are disposed adjacent the air outlet end of said filter assembly;
• a plurality of generally rectangular and substantially identically configured panel end caps, a pair of said end caps being secured to extended end portions of each of said filter panels and each of said end caps defining a pair of cam surfaces thereon proximate extended ends thereof and inwardly spaced from said filter panels, one of said cam surfaces on each of said end caps being disposed between each of said pairs of filter panels at the apex of the Vee defined thereby and abutting a cam surface on the end cap of the other panel in said pair and urging portions of said panels proximate said apexes outwardly into sealing engagement with said frame, the other of said cam surfaces on each of said end cap being disposed adjacent the inlet end of said assembly;
• and
• a plurality of pairs of locking clips carried by said frame adjacent the inlet end of said assembly, each of said pairs of clips engaging said other cam surfaces defined by the end caps on one of said filter panels and releasably holding portions of said panel in sealing engagement with said frame whereby a perimeter face seal about and between said panel and said frame is formed and maintained and, upon releasing said engagement of said pair of locking clips with said other cam surfaces, said panel can be removed from said frame for disposal and replacement.

A replaceable filter panel for use with a plurality of substantially identically configured panels in an air filter assembly having an air inlet and an air outlet end wherein the panels are arranged in angularly disposed pairs within a support frame so as to define a plurality of adjacent Vees with the apexes of the Vees being disposed at the air outlet end of the assembly and wherein the assembly is provided with releasable locking means at the air inlet end thereof for holding portions of the filter panels in sealing engagement with the frame so as to effect perimeter face seals about and between each of the panels and the frame, said panel comprising:

• a filter media;
• panel walls for retaining said filter media therebetween;
• and a pair of generally rectangular and substantially identically configured panel end caps secured to said panel walls adjacent end portions thereof, each of said end caps defining a pair of oppositely inclined cam surfaces thereon proximate extended ends thereof such that upon disposing said panel in said filter assembly with a plurality of identically configured panels in said angularly disposed pairs, one of said cam surfaces on each of said end caps is disposed between each of the pairs of filter panels at the apex of the Vee defined thereby for urging portions of said panels proximate said apexes into sealing engagement with the frame and the other of said cam surfaces on each of said end caps is disposed adjacent the air inlet end of the assembly for releasable engagement with the locking means thereon whereby said perimeter face seals can be readily formed and maintained.

An air filter assembly including a plurality of replaceable filter panels arranged in angularly disposed pairs within a support frame so as to define a plurality of adjacent Vees with the apexes of the Vees being disposed at the air outlet end of the assembly and the open ends of the Vees being disposed at the air inlet end thereof, the improvement comprising:

• a plurality of generally rectangular end caps, a pair of said end caps being secured by an adhesive to extended end portions of each of said filter panels and each of said end caps defining a filter panel abutment surface and a wall extending about the perimeter of said surface, said wall cooperating with said surface to define a filter panel receiving trough and wherein said wall projects from said surface at spaced locations thereon so as to define a pair of inwardly directed cam surfaces proximate extended ends of said caps, one of said cam surfaces on each of said end caps being disposed between each of said pairs of filter panels at the apex of the Vee defined thereby for urging portions of said panels proximate said apexes into sealing engagement with the support frame and the other of said cam surfaces of each of said end caps being disposed adjacent the air inlet end of said assembly;
• and
• a plurality of locking members carried by said frame adjacent the air inlet end of said assembly for engaging said other cam surfaces on said end caps and releasably holding portions of said panels in sealing engagement with said frame whereby a perimeter face seal about and between each of said panels and each of said frame is formed and maintained and, upon releasing the engagement of said locking members with said other cam surfaces, said panels can be removed from said frame for disposal and replacement.