Filter Retaining Assembly

Abstract

A filter assembly is described. In particular, a filter retaining assembly for receiving and retaining filter media within an exhaust hood includes a main panel defining a first end and an opposite second end, a first retention surface adjacent the first end of the main panel, a first retention lip adjacent the first retention surface, a second retention surface adjacent the second end of the main panel, and a second retention lip adjacent the second retention surface.

Description

[Background technology]

[0001] Filters are used for many purposes, such as removing small suspended particles from the air. A filter retaining assembly can removably hold filter media in an exhaust hood, among other locations. Summary of the Invention

[0002] In some aspects, a filter retaining assembly for receiving and retaining filter media within an exhaust hood is disclosed. The filter retaining assembly can include a main panel defining a first end and an opposite second end, a first retention surface adjacent to the first end of the main panel, a first retention lip adjacent to the first retention surface, a second retention surface adjacent to the second end of the main panel, and a second retention lip adjacent to the second retention surface.

[0003] In some aspects, a filter retaining system for receiving and retaining filter media within an exhaust hood is disclosed. The filter retaining system can include a filter retaining assembly including a main panel defining a first end and an opposite second end, a first retaining surface adjacent the first end of the main panel, and a second retaining surface adjacent the second end of the main panel. A mounting structure can removably secure the filter retaining assembly to the exhaust hood.

[0004] In some embodiments, a filter retaining system for receiving and retaining a filter media within an exhaust hood is disclosed. The filter retaining system can include a filter media defining a first end and an opposite second end, and a filter retaining assembly. The filter retaining assembly can include a first media mount, a first mounting structure for securing the first media mount to the exhaust hood, a second media mount, and a second mounting structure for securing the second media mount to the exhaust hood. The first media mount can removably secure the first end of the filter media, and the second end can removably secure the second end of the filter media. [Brief explanation of the drawings]

[0005] [Figure 1] FIG. 1 is a schematic system diagram of a filter fixation system including a cooking appliance and an exhaust system according to an exemplary embodiment of the present disclosure. [Figure 2] FIG. 1 is a top perspective view of a filter retaining assembly according to an exemplary embodiment of the present disclosure. [Figure 3] FIG. 1 is a front elevation view of a filter retaining assembly according to an exemplary embodiment of the present disclosure. [Figure 4] FIG. 1 is a side elevational view of a filter retaining assembly according to an exemplary embodiment of the present disclosure. [Figure 5] FIG. 10 is a side elevational view of a filter retaining assembly further illustrating a filter media according to an exemplary embodiment of the present disclosure. [Figure 6] FIG. 10 is a top perspective view of a filter retaining assembly, further illustrating a filter media, according to an exemplary embodiment of the present disclosure. [Figure 7] FIG. 10 is a front elevation view of a filter retaining assembly further illustrating a filter media according to an exemplary embodiment of the present disclosure. [Figure 8] FIG. 10 is a top perspective view of another embodiment of a filter retaining assembly, according to an exemplary embodiment of the present disclosure. [Figure 9]FIG. 10 is a side elevational view of another embodiment of a filter retaining assembly, according to an exemplary embodiment of the present disclosure. [Figure 10] FIG. 10 is a top perspective view of another embodiment of a filter retaining assembly, according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0006] In the following description, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration various embodiments. The drawings are not necessarily to scale. It is to be understood that other embodiments are contemplated and may be made without departing from the scope or spirit of the specification. Accordingly, the following detailed description is not to be taken in a limiting sense.

[0007] The filter retainer assembly can be used in a wide range of applications. In some embodiments, the filter retainer assembly can be designed for general air filtration, primarily for filtering airborne particulates. For example, the filter media in the filter retainer assembly can be designed to filter, among other things, particles less than 10 micrometers in diameter, less than 5 micrometers in diameter, less than 2.5 micrometers in diameter, less than 1.0 micrometers in diameter, less than 0.5 micrometers in diameter, or less than 0.3 micrometers in diameter.

[0008] A filter retaining assembly can also be used to secure filter media to a specific location, such as an exhaust hood. Such filter retaining assemblies can be used for specialized purposes, such as grease filtration in commercial cooking environments. In commercial kitchens, grease capture in exhaust hoods can be important for health, safety, and environmental reasons. However, grease accumulation in and around exhaust hoods or exhaust systems can pose a fire risk. To mitigate the risk, commercial kitchens typically use airflow interrupters or disruptors, such as baffles made of non-combustible materials, such as metals or metal alloys like stainless steel, galvanized steel, or aluminum. Baffles can prevent fires from spreading between cooking surfaces and exhaust systems. Furthermore, aerosolized grease can travel through the complex paths created by the baffles and condense on surfaces, leading to further grease accumulation in the ducts. However, to maintain the effectiveness of the baffles as a fire barrier and grease collector, this grease accumulation on the baffles must be periodically cleaned. From an aesthetic standpoint, visible grease on commercial hood baffles may be undesirable. Removing, cleaning, and reinstalling baffles can be time-consuming, labor-intensive, expensive, and dangerous. Thus, in contrast to conventional baffles, the present disclosure can provide a grease-trapping solution that reduces or prevents grease buildup on exhaust system components, is lightweight, easy to install in the exhaust hood, and facilitates easy replacement of filter media in the exhaust hood in the location traditionally occupied by a baffle. Other benefits and uses are also anticipated.

[0009] The present disclosure provides a filter retaining assembly for receiving and retaining filter media for filtering grease droplets within an exhaust hood. Such a filter retaining assembly can be designed to replace a conventional baffle within the exhaust hood, thereby requiring minimal or no modifications to the existing exhaust system. Furthermore, the filter media received and secured by the filter retaining assembly can prevent flames from passing through the filter retaining assembly and prevent grease from accumulating in portions of the exhaust system downstream of the filter media. For clarity, movement from the cooking appliance through the exhaust system and past the blower can be defined as downstream movement, while movement in the opposite direction can be defined as upstream movement.

[0010] FIG. 1 is a schematic cross-sectional view of a filter retaining system 90 including a cooking appliance 50 and an exhaust system 54. The cooking appliance 50 may be an oven, stove, grill, fryer, broiler, or any other commonly used cooking appliance known to those skilled in the art. The exhaust system 54 may include an exhaust hood 58 defining an exhaust hood flange 60. The exhaust hood 58 may be positioned to capture all or a portion of grease and other particulates generated by use of the cooking appliance 50. A blower 66 may, via a duct 62, create a region of reduced pressure (relative to ambient pressure) adjacent the cooking appliance 50 that can encourage grease and other particulates generated by use of the cooking appliance 50 to enter the exhaust system 54 through the exhaust hood 58. In such a system, as shown in FIG. 1 , air, gas, grease, and / or particulates may travel through the exhaust hood 58 (and the filter retaining assembly 100 and filter media 80, as described below) and into the exhaust system 54, as represented by arrows 70. The filtered air, gases, and any remaining grease and / or particulates may then pass through duct 62 and blower 66, as represented by arrow 74, before exiting exhaust system 54. It should be understood that filter retaining assembly 100 and filter media 80 removably mounted adjacent to, adjacent to, and / or contacting a surface of exhaust hood flange 60 or exhaust hood 58 are within the scope of this disclosure.

[0011] 2-4 illustrate an exemplary filter retaining assembly 100. The filter retaining assembly 100 can include a main panel 110 defining a first end 113 and an opposing second end 114. The main panel 110 can include one or more main supports 111, which can extend substantially from the first end 113 to the second end 114. The filter retaining assembly 100 can include a first retention surface 120 on, adjacent to, contacting, and / or proximate to the first end 113. In various embodiments, the first retention surface 120 can be disposed at an acute angle, an obtuse angle, or a right angle relative to the main panel 110. The filter retaining assembly 100 can also include a first retention lip 124 on, adjacent to, contacting, and / or proximate to the first retention surface 120. The first retention lip 124 and the main panel 110 can be positioned on substantially opposite sides of the first retention surface 120. In various embodiments, the first retention lip 124 can be positioned at an acute angle, an obtuse angle, or a right angle relative to the first retention surface 120. Further, the filter retaining assembly 100 can include a first mounting surface 125. In various embodiments, the first mounting surface 125 can be positioned at an acute angle, an obtuse angle, or a right angle relative to the first retention lip 124. The first mounting surface 125 and the first retention surface 120 can be positioned on substantially opposite sides of the first retention lip 124.

[0012] The filter retaining assembly 100 can include a second retention surface 128 adjacent to, in contact with, and / or adjacent to the second end 114. In various embodiments, the second retention surface 128 can be disposed at an acute angle, an obtuse angle, or a right angle relative to the main panel 110. The filter retaining assembly 100 can also include a second retention lip 132 adjacent to, in contact with, and / or adjacent to the second retention surface 128. The second retention lip 132 and the main panel 110 can be disposed on substantially opposite sides of the second retention surface 128. In various embodiments, the second retention lip 132 can be disposed at an acute angle, an obtuse angle, or a right angle relative to the second retention surface 128. Additionally, the filter retaining assembly 100 can include a second mounting surface 133. In various embodiments, the second mounting surface 133 can be disposed at an acute angle, an obtuse angle, or a right angle relative to the second retaining lip 132. The second mounting surface 133 and the second retaining surface 128 can be disposed on substantially opposite sides of the second retaining lip 132.

[0013] In some embodiments, first retention surface 120 is parallel to second retention surface 128. In some embodiments, first retention lip 124 is parallel and / or coplanar with second retention lip 132. In some embodiments, first mounting surface 125 is parallel and / or coplanar with second mounting surface 133.

[0014] The main panel 110 and / or the main support 111 can define one or more openings 136 through the main panel 110. In some embodiments, the main panel 110 can be substantially rectangular or substantially square. The main panel 110 can define a length L and a width W, the product of which is a main panel surface area 137. In some embodiments, the openings 136 can define a portion of the main panel surface area 137. In various embodiments, the openings 136 define or form 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, or 95% of the main panel surface area 137. In various embodiments, the openings 136 define or form at least 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, or 95% of the main panel surface area 137. The openings 136 can be any shape. In non-limiting embodiments, at least some of the openings 136 can be substantially circular, oval, triangular, rectangular, pentagonal, hexagonal, heptagonal, octagonal, organic, geometric, semicircular, crescent, parallelogram, quadrilateral, diamond, and / or stadium-shaped. Furthermore, in some embodiments, the openings 136 define substantially the same shape, while in other embodiments, the openings 136 define two or more different shapes.

[0015] The filter retaining assembly 100 may include one or more mounting structures 140 a, 140 b. The mounting structures 140 a, 140 b may permanently or removably secure or join the filter retaining assembly 100 to a portion of the exhaust system 54. In some embodiments, the mounting structures 140 a, 140 b may permanently or removably secure or join the filter retaining assembly 100 to the exhaust hood 58. The mounting structures 140 a, 140 b may permanently or removably secure or join the filter retaining assembly 100 to a portion of the exhaust system 54 or the exhaust hood 58 via hooks, clasps, clamps, magnets, adhesives, protrusions, recesses, mechanical fasteners, hook-and-loop panels, or any other removably fastening technique known to one of ordinary skill in the art.

[0016] 1 and 9 , the filter retaining assembly 100, or a portion thereof, may be positioned within and / or engaged with the exhaust hood flange 60 to secure the filter retaining assembly 100 to the exhaust hood 58. In some embodiments, the portion of the filter retaining assembly 100 may define an interference fit, a transition fit, a snug fit, or a rigid fit within the exhaust hood flange 60. In some embodiments, the engagement of the portion of the filter retaining assembly 100 with the exhaust hood flange 60, in combination with the engagement of the mounting structures 140 a, 140 b, secures the filter retaining assembly 100 within the exhaust hood 58. In some embodiments, the filter retaining assembly 100 may be secured to the exhaust hood flange 60 by positioning a portion of the exhaust hood flange 60 between the first mounting surface 125 and the first retaining lip 124. In some embodiments, the filter retaining assembly 100 may be secured to the exhaust hood flange 60 by positioning a portion of the exhaust hood flange 60 between the second mounting surface 133 and the second retaining lip 132.

[0017] The filter retaining assembly 100, or elements thereof, can define a cavity 144. The cavity 144 can be a partially enclosed area bounded on various sides by one or more of the main panel 110, the main support 111, the first end 113, the second end 114, the first retention surface 120, the first retention lip 124, the second retention surface 128, and / or the second retention lip 132. When the filter retaining assembly 100 secures the filter media 80 (via the mounting structures 140a, 140b) as part of the filter retaining system 90, the filter media 80 can be disposed wholly or partially within the cavity 144.

[0018] In some embodiments, the first connector 150 and / or the second connector 152 can secure the filter media 80 within the cavity 144 and can secure the filter media 80 adjacent to, adjacent to, and / or to a portion of the filter retaining assembly 100, such as the main panel 110, the main support 111, the first end 113, the second end 114, the first retaining surface 120, the first retaining lip 124, the second retaining surface 128, and / or the second retaining lip 132. The first connector 150 and / or the second connector 152 can include piercing elements, hooks, clasps, clamps, magnets, adhesives, protrusions, recesses, mechanical fasteners, hook-and-loop panels, or any other removable fastening technique known to one of ordinary skill in the art. Additionally, first coupling portion 150 and / or second coupling portion 152 can form an interference fit with filter media 80 when filter media 80 is placed within cavity 144. Additionally, one or more of first retention surface 120, first retention lip 124, second retention surface 128, and / or second retention lip 132 can include curved and / or faceted portions. Additionally, in various embodiments, one or more of first retention surface 120, first retention lip 124, second retention surface 128, and / or second retention lip 132 can be at least 0.5 cm, 1.0 cm, 1.5 cm, 2.0 cm, 2.5 cm, 3.0 cm, 3.5 cm, 4.0 cm, 4.5 cm, 5.0 cm, 5.5 cm, 6.0 cm, 6.5 cm, 7.0 cm, 7.5 cm, 8.0 cm, 8.5 cm, 9.0 cm, 9.5 cm, 10.0 cm, 10.5 cm, 11.0 cm, 11.5 cm, 12.0 cm, 12.5 cm, 13.0 cm, 13.5 cm, 14.0 cm, 14.5 cm, or 15.0 cm.Additionally, in various embodiments, one or more of first retention surface 120, first retention lip 124, second retention surface 128, and / or second retention lip 132 can be approximately 0.5 cm, 1.0 cm, 1.5 cm, 2.0 cm, 2.5 cm, 3.0 cm, 3.5 cm, 4.0 cm, 4.5 cm, 5.0 cm, 5.5 cm, 6.0 cm, 6.5 cm, 7.0 cm, 7.5 cm, 8.0 cm, 8.5 cm, 9.0 cm, 9.5 cm, 10.0 cm, 10.5 cm, 11.0 cm, 11.5 cm, 12.0 cm, 12.5 cm, 13.0 cm, 13.5 cm, 14.0 cm, 14.5 cm, or 15.0 cm. Additionally, in various embodiments, one or more of first retention surface 120, first retention lip 124, second retention surface 128, and / or second retention lip 132 can be at most 0.5 cm, 1.0 cm, 1.5 cm, 2.0 cm, 2.5 cm, 3.0 cm, 3.5 cm, 4.0 cm, 4.5 cm, 5.0 cm, 5.5 cm, 6.0 cm, 6.5 cm, 7.0 cm, 7.5 cm, 8.0 cm, 8.5 cm, 9.0 cm, 9.5 cm, 10.0 cm, 10.5 cm, 11.0 cm, 11.5 cm, 12.0 cm, 12.5 cm, 13.0 cm, 13.5 cm, 14.0 cm, 14.5 cm, or 15.0 cm.

[0019] In use, the filter retaining assembly 100 can be positioned in the exhaust hood 58 by a user, tool, and / or machine. In some embodiments, the filter retaining assembly 100 can be permanently or removably secured to the exhaust hood 58 by mounting structures 140 a, 140 b. In some embodiments, the filter retaining assembly 100 can be permanently or removably secured to the exhaust hood 58 by an engagement between a portion of the filter retaining assembly 100 and the exhaust hood flange 60 and / or an engagement between the exhaust hood flange 60 and the first mounting surface 125 and the second mounting surface 133. At least a portion of the filter media 80 can then be installed in the cavity 144 by a user, tool, and / or machine. Through operation of the filter retaining system 90 (including the exhaust system 54, cooking appliance 50, and blower 66), the filter media 80 positioned in the exhaust hood 58 can filter various particles, grease, and / or gases from the airflow entering and passing through the exhaust hood 58. The filter media 80 may be removed from the cavity 144 by a user, tool, and / or machine based on saturation of the filter media 80, a given time interval, or another criteria.

[0020] 8, the main panel 110 can include a substantially mesh-like surface, or grid, formed by the main supports 111. The main panel supports 111 can define openings 136, as described above.

[0021] 9 , the filter retaining assembly 100 can include a first media mount 160 and a second media mount 168. The first media mount 160 and the second media mount 168 can be separate elements, can be spaced apart from each other, and / or can be located a non-zero distance from each other. Similar to the description above, the first media mount 160 can include a first retention surface 120, a first retention lip 124, and a first mounting surface 125. The first mount attachment structure 164 can permanently or removably secure or bond the first media mount 160 to a portion of the exhaust system 54. In some embodiments, the first mount attachment structure 164 can permanently or removably secure or bond the first media mount 160 to the exhaust hood 58.

[0022] The second media mount 168 can include a second retaining surface 128, a second retaining lip 132, and a second mounting surface 133. The second mounting structure 172 can permanently or removably secure or join the second media mount 168 to a portion of the exhaust system 54. In some embodiments, the second mounting structure 172 can permanently or removably secure or join the second media mount 168 to the exhaust hood 58. The first mounting structure 164 and the second mounting structure 172 can removably or permanently secure or join the first media mount 160 and the second media mount 168 to one or more of the exhaust hood 58 and the exhaust system 54 in the same or similar manner as the mounting structures 140 a, 140 b join other embodiments of the filter retaining assembly 100 to the exhaust hood 58 and / or the exhaust system 54.

[0023] 9 , the filter media 80 can define a first media end 180 and an opposing second media end 184. The first mount interface 190 can be positioned on a portion of the first media mount 160 and can secure the filter media 80, particularly the first media end 180, adjacent to, adjacent to, and / or to a portion of the first media mount 160, e.g., the first retaining surface 120 and / or the first retaining lip 124. Similarly, the second mount interface 192 can be positioned on a portion of the second media mount 168 and can secure the filter media 80, particularly the second media end 184, adjacent to, adjacent to, and / or to a portion of the second media mount 168, e.g., the second retaining surface 128 and / or the second retaining lip 132. The first mount coupling 190 and / or the second mount coupling 192 can include perforated elements, hooks, clasps, clamps, magnets, adhesives, protrusions, recesses, mechanical fasteners, hook-and-loop panels, or any other removable fastening technique known to those skilled in the art. The first media mount 160 and the second media mount 168, together with the first mount coupling 190 and the second mount coupling 192, can secure the filter media 80 within the exhaust hood 58, such that the filter media 80 can filter various particles, grease, and / or gases from the airflow entering and passing through the exhaust hood 58. Furthermore, the first mount coupling 190 and the second mount coupling 192 can form an interference fit with the filter media 80 when the filter media 80 is placed within the first media mount 160 and / or the second media mount 168.

[0024] 10, the main panel 110 can include a single main support 111. The main panel support 111 can be located at the laterally center of the filter retaining assembly 100. Such an embodiment can further reduce the weight of the system and aid in user handling.

[0025] The filter media 80, as seen in Figures 1, 5-7, and 9, can include any one or more materials or mechanical filter configurations known to those skilled in the art. In particular, the filter media 80 can include one or more of a flame-resistant (FR) media web, a woven material, a nonwoven material, oxidized polyacrylonitrile (OPAN), FR rayon, modacrylic, basalt, fiberglass, wool, and ceramic. In some embodiments, the filter media 80 includes a conventional filter media material (such as a polyolefin) that has been treated or coated to be flame-resistant. In some embodiments, the filter media 80 includes a conventional filter media material as well as a metal mesh and / or a flame-resistant barrier. In various embodiments, the filter media 80 can be pleated, non-pleated, and / or multi-layered, depending on the application.

[0026] The filter retaining assembly 100 and each of its components may comprise one or more of a metal (such as aluminum), a metal alloy (such as stainless steel), fiberglass, ceramic, a composite material, a carbon composite material, stone, plastic, a wood-based product, a flame-resistant (FR) material, a material treated and / or coated with a FR material, or any other suitable material known to one of ordinary skill in the art.

[0027] Particular embodiments of the main panel 110, the opening 136, and / or the main support 111 are disclosed in U.S. Design Application No. 29 / 629926, filed December 18, 2017, U.S. Design Application No. 29 / 630262, filed December 20, 2017, U.S. Design Application No. 29 / 630249, filed December 20, 2017, U.S. Design Application No. 29 / 662774, filed September 7, 2018 and issued February 18, 2020 as Patent No. D875910, and U.S. Design Application No. 29 / 662776, filed September 7, 2018 and issued March 10, 2020 as Patent No. D877876.

[0028] The terms and expressions used are used as terms of description rather than limitation, and when using such terms and expressions, there is no intention to exclude the features shown and described or equivalents of portions thereof, and it is understood that various modifications are possible within the scope of the embodiments of the present disclosure. Thus, although the present disclosure has been specifically disclosed with certain embodiments and optional features, it should be understood that modifications and variations of the concepts disclosed herein may be employed by those skilled in the art, and such modifications and variations are considered to be within the scope of the embodiments of the present disclosure. The entire disclosures of patents, patent documents, and publications cited herein are incorporated by reference in their entirety, as if each were incorporated individually. In the event of any conflict or inconsistency between the description of this specification and the disclosure of any document incorporated by reference herein, the description of this specification shall control. In addition to the embodiments, the following aspects are noted. (Appendix 1) 1. A filter retaining assembly for receiving and retaining filter media within an exhaust hood, comprising: a main panel defining a first end and an opposite second end; a first retention surface adjacent the first end of the main panel; a first retention lip adjacent the first retention surface; a second retention surface adjacent the second end of the main panel; and a second retention lip adjacent the second retention surface; A filter retaining assembly comprising: (Appendix 2) 2. The filter retaining assembly of claim 1, wherein the first retaining surface is substantially perpendicular to the main panel. (Appendix 3) 2. The filter retaining assembly of claim 1, wherein the second retaining surface is substantially perpendicular to the main panel. (Appendix 4) 10. The filter retaining assembly of claim 1, wherein one or more of the main panel, first retention surface, and second retention surface comprise flame-retardant paperboard. (Appendix 5) 10. The filter retaining assembly of claim 1, wherein one or more of the main panel, first retaining surface, and second retaining surface comprise stainless steel. (Appendix 6) 10. The filter retaining assembly of claim 1, wherein one or more of the main panel, first retaining surface, and second retaining surface comprise aluminum. (Appendix 7) 2. The filter retaining assembly of claim 1, wherein the main panel defines one or more openings, the openings forming at least 60% of the main panel surface area. (Appendix 8) 2. The filter retaining assembly of claim 1, wherein the first retaining lip is substantially perpendicular to the first retaining surface. (Appendix 9) 10. The filter retaining assembly of claim 1, wherein the second retaining lip is substantially perpendicular to the second retaining surface. (Appendix 10) 10. The filter retaining assembly of claim 1, further comprising a mounting structure for removably securing the filter retaining assembly to the exhaust hood. (Appendix 11) 1. A filter retaining system for receiving and retaining filter media within an exhaust hood, comprising: a filter retaining assembly, a main panel defining a first end and an opposite second end; a first support surface adjacent the first end of the main panel; and a filter retaining assembly including a second retention surface adjacent the second end of the main panel; and a mounting structure for removably securing the filter retaining assembly to the exhaust hood. (Appendix 12) 12. The filter retaining system of claim 11, wherein the mounting structure includes one or more magnets for joining the exhaust hood with the filter retaining assembly. (Appendix 13) 12. The filter retention system of claim 11, wherein one or more of the main panel, first retention surface, and second retention surface comprise stainless steel. (Appendix 14) 12. The filter retaining system of claim 11, wherein one or more of the main panel, first retaining surface, and second retaining surface comprise aluminum. (Appendix 15) 12. The filter retaining system of claim 11, wherein the main panel defines one or more openings, the openings forming at least 60% of the main panel surface area. (Appendix 16) 1. A filter retaining system for receiving and retaining filter media within an exhaust hood, comprising: a filter media defining a first end and an opposite second end; a filter retaining assembly, a first media mount; a first mount attachment structure for securing the first media mount to the exhaust hood; a second media mount; and a second mount attachment structure for securing the second media mount to the exhaust hood; a filter retaining assembly, wherein the first media mount removably secures the first end of the filter media and the second end removably secures the second end of the filter media. (Appendix 17) 17. The filter fastening system of claim 16, wherein one or more of the first mount attachment structure and the second mount attachment structure include corresponding magnets for joining the exhaust hood with the first media mount and the second media mount. (Appendix 18) 17. The filter retaining system of claim 16, wherein the first media mount and the second media mount are separate elements located a non-zero distance from each other, and no portion of the filter retaining assembly is disposed between the first media mount and the second media mount. (Appendix 19) 17. The filter fastening system of claim 16, wherein one or more of the first mount attachment structure and the second mount attachment structure include corresponding adhesives for joining the exhaust hood with the first media mount and the second media mount. (Appendix 20) 17. The filter fastening system of claim 16, wherein one or more of the first mount attachment structure and the second mount attachment structure include corresponding portions of hook-and-loop panels for joining the exhaust hood to the first media mount and the second media mount.

Claims

1. 1. A filter retaining assembly for receiving and retaining filter media within an exhaust hood, comprising: a main panel defining a first end and an opposite second end; a first retention surface adjacent the first end of the main panel; a first retention lip adjacent the first retention surface; a first mounting surface disposed at an acute angle to the first retention lip and not extending to the first retention surface; a second retention surface adjacent the second end of the main panel; a second retention lip adjacent the second retention surface; and a second mounting surface disposed at an acute angle to the second retention lip and not extending to the second retention surface; A filter retaining assembly comprising:

2. The filter retaining assembly of claim 1 , wherein the first retaining surface is perpendicular to the main panel.

3. The filter retaining assembly of claim 1 , wherein the second retaining surface is perpendicular to the main panel.

4. The filter retaining assembly of claim 1 , wherein one or more of the main panel, first retention surface, and second retention surface comprise flame retardant paperboard, stainless steel, or aluminum.

5. The filter retaining assembly of claim 1 , wherein the main panel defines one or more openings, the openings occupying between 60% and 95% of the main panel surface area.

6. The filter retaining assembly of claim 1 , wherein the first retaining lip is perpendicular to the first retaining surface.

7. The filter retaining assembly of claim 1 , wherein said second retaining lip is perpendicular to said second retaining surface.

8. The filter retaining assembly of claim 1 , further comprising a mounting structure for removably securing the filter retaining assembly to the exhaust hood.

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