A paint arrestor filter for paint booth exhaust air

Abstract

The present invention relates to a paint arrestor filter (100) for paint booth exhaust air. The paint arrestor filter comprises a plurality of panels (102) arranged vertically in a stack, made of a reusable material. Each panel (102) has a plurality of holes (104) formed in the panel with strategically designed hole patterns. The panels (102) are connected through a plurality of columns (106) fixed at one or more corners of each panel, with the columns having a top side installed with a loop for firm installation. The filter includes mounting holes (108) positioned at predetermined locations on each panel for securing the filter assembly. The holes (104) in different panels are arranged in different patterns to prevent linear airflow and create a zig-zag airflow path that generates turbulence for paint particle separation.

Description

A PAINT ARRESTOR FILTER FOR PAINT BOOTH EXHAUST AIRFIELD OF THE INVENTION

[0001] The present invention relates to a paint arrestor filter system, and more particularly to a paint arresting filter system comprising multiple panels arranged in a vertical stack with strategically designed hole patterns that create zig-zag airflow paths for efficient paint particle separation from the painting booth exhaust air. This filter is reusable and environment friendly.BACKGROUND OF THE INVENTION

[0002] Typically, spray booths are used in a variety of industrial applications for applying paint to various products by spray painting. During painting in the painting booth, some %age of the sprayed paint transfer to the component and remaining painting over sprayed in the surrounding air. Further, the collection of over sprayed paint is a crucial process from the paint mixed polluted air as paint causes various environment issues if directly exhaust in the atmosphere. Moreover, the overspray creates mess by leaving flecks everywhere around the paint booth which leads to the need of proper collection of over sprayed paint.

[0003] The paint arrestor filters are installed on the paint booth to capture or collect over sprayed paint from the polluted air from the painting booth before it exhausts to the atmosphere so that it paint particles should not spread in the atmosphere. In Present scenario there are many paint arresting filters, but they all are either made of cardboard media or synthetic media and in some cases, the filters are available in combination of cardboard and synthetic media or glass fiber. These filters carry paint particles which can’t be extracted from the filters so only option is to dispose of the filters. For disposal of these used filters, as per present industrial practice, burnt them in incinerator or dump under the earth as these used filters come in hazardous category. Incinerating these filters or dumping under earth causes environmental pollution.

[0004] Moreover, the cardboard filters require proper handling and storage provision due to their paper media. As the cardboard filters may be damaged due to less strength, or it can get wet. Using paper as media is always a concern for the environment in terms of carbon emission and water consumption for making these filters. These types of filters involve huge transportation costs including fresh filter and later used filter disposal, significant running costs as cannot be reused, storage cost as need big space for spare fresh filter and used filters. Environmental pollution is alsoa big concern with these cardboard media filters as making of these filters requires lots of paper & water and again after use when burnt, generate toxic exhaust to the environment.

[0005] The patent application US5419953A titled “Multilayer composite air filtration media” discloses about a composite filter media is formed of a plurality of layers. A central layer of electrostatically charged material formed of a carded mixture of polyolefin fibers such as polypropylene and electro-negative substituted organic resin fibers such as modacrylic acrylonitrile-vinyl, chloride vinylidene chloride copolymer efficiently filter more than 99% of 0.1 to 0.5 micron particles. A flame retardant prefilter layer of polyester removes large particles and a backing of flame retardant linear polyester provides tear resistance. An optional layer of electrostatically charged, melt blown, polyolefin such as polypropylene prevents the central layer from loading up by effectively filtering intermediate sized particles.

[0006] Another patent application US4493718A titled “Paint spray filter system” discloses about a paint spray filter for use in a paint spray booth. The filter comprises a grid having a plurality of vertical and horizontal members, attachment means secured to the grid extending upwardly and outwardly therefrom, and a sheet of fiberglass filter material. The fiberglass filter material has a first face substantially covering the grid and being secured thereto by the attachment means, and a fully exposed second face. Support means extending from the edges of the grid are adapted to cooperate with the frame members of the paint spray booth for maintaining the paint spray filter in the booth.

[0007] The aforesaid prior arts are not solving various challenges with respect to the paint arresting filter. The existing prior art requires updated and advanced mechanism for proper collection of the over sprayed paint. The existing available options are generally made of cardboard, glass fiber and / or synthetic media which is not reusable and required to be disposed of after use. Further, the task of disposal is also challenging as it needs to be burnt out or dumped under earth which creates environmental pollution.

[0008] In view of the challenges associated with the above state-of-art, there is a need for a paint arresting filter system that addresses the fundamental limitations of conventional filtration technologies by providing a reusable, environmentally friendly solution that eliminates disposable filter media while offering superior paint particle separation efficiency and cost-effective operation.OBJECTIVE OF THE INVENTION

[0009] The primary objective of the present invention is to provide a paint arresting filter for paint booth exhaust air.

[0010] Another objective of the present invention is to provide a paint arresting filter for paint booth exhaust air which is reusable.

[0011] Another objective of the present invention is to provide a paint arresting filter for paint booth exhaust air which is common for all types of paints arresting for 1 K, 2K, acrylic or PU paint.

[0012] Another objective of the present invention is to provide the paint arresting filter for paint booth exhaust air which is common filter for solvent and waterborne paints.

[0013] Another objective of the present invention is to provide the paint arrestor filter for paint booth exhaust air which is adaptable to sustain higher face wind velocity.

[0014] Another objective of the present invention is to provide the paint arrestor filter for paint booth exhaust air which is environment friendly.

[0015] Yet another objective of invention is to provide to provide the paint arresting filter for paint booth exhaust air having optimum running and transportation cost.

[0016] Other objectives and advantages of the present invention will become apparent from the following description taken in connection with the accompanying drawings, wherein, by way of illustration and example, the aspects of the present invention are disclosed.SUMMARY OF THE INVENTION

[0017] The present invention relates to a paint arresting filter for paint booth exhaust air. This paint arresting filter installed in the painting booth exhaust air system. Booth exhaust air with over sprayed paint particles, pass through this filter and remove 90 % ~ 98 % of paint particles from the booth exhaust polluted air. And balance remaining removed from the back -up filters and clean air exhausts to the atmosphere. This filter is made of a combination of 7~8 fabricated panels of a material which can be cleaned and reused. Each fabricated panel has strategically designed hole pattern. The fabricated panels are connected / assembled through a plurality of columns and make a single filter. The filter comprises mounting holes positioned at predetermined locations on each panel for securing the filter assembly. Each panel has a unique arrangement of holes with differenthole patterns, sizes, and locations that are non-identical to other panels in the stack. The holes in different panels are arranged in different patterns to prevent linear airflow through the paint arrestor filter and create a zig-zag airflow path that generates turbulence in the paint booth polluted exhaust air. Due to restriction in the linear flow of the booth exhaust polluted air steam, the paint particles stick on the surfaces of the various panels of the filter and clean air come out from the filter.BRIEF DESCRIPTION OF DRAWINGS

[0018] The present invention will be better understood after reading the following detailed description of the presently preferred aspects thereof with reference to the appended drawings, in which the features, other aspects and advantages of certain exemplary embodiments of the invention will be more apparent from the accompanying drawing in which:

[0019] Figure 1 illustrates a panel layout diagram showing filter array (450) with panel height (490).

[0020] Figure 2 illustrates an exploded assembly view showing filter panels (102) connected by support columns (106).

[0021] Figure 3 illustrates a panel layout configuration with dimensional specifications.

[0022] Figure 4 illustrates a detail view "DETAIL-L1" showing punch plate (LI).

[0023] Figure 5 illustrates a top view of panel layout.

[0024] Figure 6 illustrates a detail view "DETAIL-L2" showing filter array (450).

[0025] Figure 7 illustrates a filter panel layout.

[0026] Figure 8 illustrates a detail view "DETAIL-L3" showing filter array (450).

[0027] Figure 9 illustrates a detailed view of filter array (450).

[0028] Figure 10 illustrates a detail view "DETAIL-L4" showing filter array (450).

[0029] Figure 11 illustrates a detail view "DETAIL-L5" showing filter array (450).

[0030] Figure 12 illustrates a filter array (440) configuration.

[0031] Figure 13 illustrates a detail view "DET AIL- L6" showing filter array (450).

[0032] Figure 14 illustrates a comprehensive filter array (450).

[0033] Figure 15 illustrates a detail view "DETAIL-L7" showing filter array.

[0034] Figure 16 illustrates a paint arrestor filter panel layout.DETAILED DESCRIPTION OF THE INVENTION

[0035] The following description describes various features and functions of the disclosed apparatus. The illustrative aspects described herein are not meant to be limiting. It may be readily understood that certain aspects of the disclosed apparatus can be arranged and combined in a wide variety of different configurations, all of which are contemplated herein.

[0036] The following description of preferred embodiments of the invention is not intended to limit the invention to these preferred embodiments, but rather to enable any person skilled in the art to make and use this invention.

[0037] These and other features and advantages of the present invention may be incorporated into certain embodiments of the invention and will become more fully apparent from the following description as set forth hereinafter.

[0038] Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0039] The terms and words used in the following description and claims are not limited to the bibliographical meanings but are merely used to enable a clear and consistent understanding of the invention. Accordingly, it should be apparent to those skilled in the art that the following description of exemplary embodiments of the present invention are provided for illustration purposes only and not for the purpose of limiting the invention.

[0040] It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise.

[0041] It should be emphasized that the term “comprises / comprising” when used in this specification is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.

[0042] Accordingly, the present invention relates to a paint arresting filter system, and more particularly to a paint arresting filter system comprising multiple panels arranged in a vertical stack with strategically designed hole patterns that create zig-zag airflow paths for efficient paint particle separation, which is reusable and environment friendly.

[0043] In an embodiment, the paint arresting filter (100) comprises a plurality of panels (102) arranged vertically in a stack, made of a reusable material. Each panel (102) in the vertical stack has a plurality of holes (104) formed in the panel with strategically designed hole patterns. The holes (104) provide passage to the over sprayed paint and create a zigzag airflow path generating turbulence for efficient paint particle separation. Each panel (102) of the filter (100) is connected through a plurality of columns (106). The columns (106) are fixed at one or more corners of each panel (102) and have a top side installed with a loop for firm installation. The mounting holes (108) are positioned at predetermined locations on each panel (102) for securing the filter assembly. The plurality of panels (102) comprises a first panel (1001), a second panel (1002), a third panel (1003), a fourth panel (1004), a fifth panel (1005), a sixth panel (1006), and a seventh panel (1007) & sometimes eighth panel (1008).

[0044] As illustrated in Figure 1, the paint arrestor filter (100) comprises a filter array with panel height (490) showing a systematic arrangement of circular openings distributed across multiple rows and columns in a uniform pattern throughout the panel surface. The filter array (450) creates the foundational design framework for effective paint particle separation through controlled airflow patterns. The holes are organized in a structured grid pattern that maintains consistent spacing between adjacent openings across the panel surface, providing the basic layout configuration for the complete filter assembly.

[0045] As illustrated in figure 2, the paint arresting filter (100) comprises a plurality of panels (102) arranged vertically in a stack with support columns (106) positioned at the corners to connect and secure the panels in the vertical configuration. The exploded view demonstrates the systematic stacking arrangement of multiple filter panels (102) with structural support framework. Each panel (102) in the vertical stack has a plurality of holes (104) formed in the panel with strategically designed hole patterns. The holes (104) provide passage to the over sprayed paint and create a zigzag airflow path generating turbulence for efficient paint particle separation. Each panel (102) of the filter (100) is connected through a plurality of columns (106). The columns (106) are fixedat one or more corners of each panel (102) and have a top side installed with a loop for firm installation. The mounting holes (108) are positioned at predetermined locations on each panel (102) for securing the filter assembly. The plurality of panels (102) comprises a first panel (1001), a second panel (1002), a third panel (1003), a fourth panel (1004), a fifth panel (1005), a sixth panel (1006), a seventh panel (1007), and an eighth panel (1008). The vertical stack arrangement creates multiple filtration stages through which the paint booth exhaust polluted air passes, with varying hole patterns forcing the polluted air to change direction repeatedly, causing paint particles to separate from the polluted air steam and adhere to the panel surfaces while allowing clean air to continue through the filter assembly.

[0046] As depicted in figure 3, the panel layout configuration shows dimensional specifications including panel length (200), horizontal spacing distance (120), horizontal spacing (25), edge margin (35), hole spacing (50), section width (65), panel spacing (70), mounting distance (75), panel sections (95), and section length (156). The plurality of panels (102) are arranged in a vertical stack, made of a reusable stainless steel material, configured to provide effective paint particle separation through strategically designed hole patterns. Each panel (102) comprises a plurality of holes (104) formed with specific arrangements that differ from other panels in the stack. The panel structure comprises defined dimensions with various panel lengths including panel length (200), panel length (137.5), panel length (450), panel length (481.5), and panel length (487.5) depending on the specific panel configuration. The panel incorporates panel height (490) and various panel widths including panel width (17.4) and panel width (490). Each panel (102) comprises multiple plurality of holes (104) positioned at predetermined locations for securing the filter assembly. The plurality of holes (104) is arranged with spacing distances between certain elements to provide proper alignment and structural integrity of the paint arrestor filter (100). The holes are arranged in systematic patterns across the panel surface, creating defined airflow paths through the filter panel sections while maintaining structural integrity through the strategic placement of support elements.

[0047] As shown in Figure 5, the panel layout configuration shows dimensional specifications including panel length (490) and panel width shows (490), the top view of panel layout shows panel section (100), holes positioned at hole interval (30), horizontal spacing (25), vertical spacing (80), section lengths (150, 156), mounting bracket (114), and support frame (115). The holes (104) in each panel (102) comprises various types of openings designed for different filtration functions.The filter holes are strategically positioned throughout each panel (102) to create the desired airflow patterns. The holes (104) are arranged with specific horizontal spacing (25) and vertical spacing (80) between adjacent openings to optimize the filtration performance. The holes (104) in at least one panel (102) are arranged with a hole spacing (60) between adjacent holes (104) to provide uniform distribution of openings across the panel surface. The hole spacing (60) creates the appropriate density of holes (104) to achieve the desired filtration efficiency while maintaining structural integrity of each panel (102). The mounting bracket and support frame (115) provide additional structural support for the panel assembly, with the mounting bracket (114) positioned at specific locations for securing the panel assembly.

[0048] The panel configuration incorporates a hole interval (30) defining the spacing between successive rows of holes (104) within each panel (102). The hole interval (30) provides systematic arrangement of holes (104) creating the zig-zag airflow path necessary for paint particle separation. The hole interval (30) ensures holes (104) in adjacent rows are positioned to force air to change direction as the air moves through the vertical stack arrangement. Each panel (102) incorporates various section lengths including section length (150) and section length (156) defining the internal sectional divisions within the panel structure. The section lengths determine the spacing between partition elements dividing each panel (102) into functional zones for controlled airflow distribution. The sectional arrangement allows for systematic hole placement across the panel surface while maintaining the structural framework necessary for the vertical stack configuration.

[0049] Each panel (102) comprises a panel edge (20) that defines the perimeter boundary of the panel structure. The panels (102) are configured with a section width (65) that determines the internal spacing between different sections of the filter assembly. The holes (104) in different panels are arranged in different patterns to prevent linear airflow through the paint arrestor filter (100) and create a zig-zag airflow path thereby generates turbulence for paint particle separation.

[0050] The reusable material composition provides enhanced durability and economic advantages over conventional filtration media. The reusable material comprises metal provides structural integrity and chemical resistance necessary for paint booth environments. The metal construction offers superior mechanical properties compared to disposable filter media, allowing the panels (102) to withstand the operational stresses encountered during paint booth exhaust air filtration.The metal material composition provides corrosion resistance against paint solvents and chemicals commonly present in paint booth exhaust air streams.

[0051] The panels (102) are made of a reusable metal material that allows cleaning with chemical or ultrasonic clearing systems and reused without any media like paper, cardboard, glass fiber or synthetic media. The metal material composition enables the panels (102) to withstand aggressive cleaning procedures that would damage or destroy conventional filter media. The chemical cleaning compatibility allows for removal of accumulated paint particles using industrial solvents and cleaning agents without compromising the structural integrity of the panels (102).

[0052] As illustrated in figure 4, the detail view labeled "DETAIL-L1" shows a punch plate (LI) comprising multiple rows of circular holes arranged in a systematic pattern with precise dimensional specifications for a quantity of 04 NOS. / SET. The paint arrestor filter (100) comprises both a punch plate (LI) and a filter panel (L2) configuration. The punch plate (LI) includes precisely positioned holes that work in conjunction with the filter panel (L2) to create the desired turbulent airflow patterns. The combination of the punch plate (LI) and filter panel (L2) provides multiple stages of filtration as air passes through the vertical stack arrangement. The punch plate (LI) is manufactured in quantities of 04 NOS. / SET as specified in the detail views. The holes (104) in each panel (102) comprises various types of openings designed for different filtration functions and include different diameters such as hole diameter (4.014) and hole diameter (10) depending on the specific panel configuration. The holes are organized in three parallel rows creating a consistent pattern across the punch plate (LI) with total length of approximately 487.5 units with edge margins on both sides.

[0053] The panels (102) are divided into sections by partition panels on bottom faces at certain intervals, with the partition panels also having holes (104) to enable air flow from one section to another section. The sectional arrangement allows for controlled airflow distribution across the entire surface area of each panel (102) while maintaining the zig-zag airflow path that enhances paint particle capture efficiency. The strategic hole patterns in the first panel (1001), second panel (1002), third panel (1003), fourth panel (1004), fifth panel (1005), sixth panel (1006), and seventh panel (1007) and eighth panel (1008) are designed to force air to change direction multiple times as the air moves through the vertical stack. The varying hole sizes and positions in each panelcreate turbulent conditions that cause paint particles to separate from the air stream and adhere to the panel surfaces while allowing clean air to continue through the paint arrest filter (100).

[0054] The holes (104) in each panel (102) are formed with a hole diameter (4.5) providing the appropriate opening size for paint particle separation while maintaining adequate airflow capacity. The hole diameter (4.5) is selected to create the desired turbulence characteristics when air passes through the holes (104) in the vertical stack arrangement. The standardized hole diameter (4.5) ensures consistent manufacturing specifications across all panels (102) in the paint arrestor filter (100).

[0055] The paint arrest filter (100) comprises a plurality of columns (106) providing structural support and connection between the panels (102) in the vertical stack arrangement. The plurality of columns (106) serves as the primary structural framework maintaining proper alignment and spacing between each panel (102) throughout the filter assembly. The columns (106) are designed to withstand the operational stresses encountered during paint booth exhaust air filtration while maintaining the structural integrity of the vertical stack configuration. The columns (106) are fixed at one or more corners of each panel (102) to provide secure attachment points distributing mechanical loads evenly across the panel structure. The corner fixing arrangement ensures each panel (102) remains properly positioned within the vertical stack while allowing for controlled airflow through the strategically designed hole patterns. The corner mounting configuration provides stability against lateral forces encountered during operation or maintenance procedures. The fabricated panels are connected / assembled through the plurality of columns (106) and make a single filter unit.

[0056] Each column (106) comprises a top side installed with a loop for firm installation of the paint arrestor filter (100). The loop installation mechanism provides a secure mounting interface allowing the filter assembly to be properly positioned and secured within paint booth exhaust systems. The loop design facilitates easy installation and removal of the paint arrestor filter (100) during maintenance operations while ensuring the filter remains securely positioned during normal operation.

[0057] The paint arrestor filter (100) further comprises a plurality of mounting holes (108) positioned at predetermined locations on each panel (102) for securing the filter assembly. The mounting holes (108) are strategically positioned to provide additional attachment points thatcomplement the column (106) connection system. The predetermined locations of the mounting holes (108) are selected to optimize the structural support distribution across each panel (102) while avoiding interference with the hole patterns designed for airflow and paint particle separation. The mounting holes (108) enable secure attachment of the paint arrestor filter (100) to supporting structures within paint booth exhaust systems. The mounting holes (108) are sized and positioned to accommodate standard fastening hardware commonly used in industrial filtration applications. The combination of the plurality of columns (106) and the plurality of mounting holes (108) provides a comprehensive mounting system ensuring reliable operation of the paint arrestor filter (100) under varying operational conditions.

[0058] The structural design incorporating the plurality of columns (106) and mounting holes (108) allows the paint arrestor filter (100) to maintain proper panel alignment throughout the operational life of the filter. The mounting system accommodates thermal expansion and contraction that may occur during paint booth operations while preserving the zig-zag airflow path created by the strategically positioned holes (104) in each panel (102). The robust mounting configuration supports the reusable nature of the paint arrestor filter (100) by maintaining structural integrity through multiple cleaning and reuse cycles.

[0059] The paint arrest filter (100) also comprises detailed dimensional specifications for individual panel configurations to ensure precise manufacturing requirements and optimal filtration performance. As illustrated in figure 1, each panel (102) comprises specific dimensional parameters defining the structural and functional characteristics of the filter assembly. The dimensional specifications provide manufacturing guidelines ensuring consistent performance across multiple production units while maintaining the structural integrity required for paint booth exhaust air filtration applications. The panel configuration comprises a panel length (350) defining the overall longitudinal dimension of each panel (102) within the vertical stack arrangement. The panel length (350) provides adequate surface area for the strategic placement of holes (104) while maintaining structural stability under operational conditions. The dimensional specification ensures each panel (102) accommodates the required hole patterns while providing sufficient material thickness for durability and reusability.

[0060] The holes (104) in at least one panel (102) are arranged with a hole spacing (60) between adjacent holes (104) to provide uniform distribution of openings across the panel surface. The holespacing (60) creates the appropriate density of holes (104) to achieve the desired filtration efficiency while maintaining structural integrity of each panel (102). The hole spacing (60) ensures adequate material remains between adjacent holes (104) to support the mechanical loads encountered during operation.

[0061] The panel configuration incorporates a hole interval (30) defining the spacing between successive rows of holes (104) within each panel (102) . The hole interval (30) provides systematic arrangement of holes (104) creating the zig-zag airflow path necessary for paint particle separation. The hole interval (30) ensures holes (104) in adjacent rows are positioned to force air to change direction as the air moves through the vertical stack arrangement.

[0062] Each panel (102) comprises an edge margin (40) around a perimeter of the panel (102) to provide structural support and mounting capability is illustrated figure. 4. The edge margin (40) ensures that adequate material exists around the perimeter to accommodate mounting holes (108) and connection points for the plurality of columns (106). The edge margin (40) provides the structural framework necessary to maintain panel integrity during installation, operation, and maintenance procedures.

[0063] As illustrated in fig, the holes (104) in at least one panel (102) are arranged with a horizontal spacing (25) between rows of holes (104) to create the desired airflow patterns through the paint arrestor filter (100). The horizontal spacing (25) determines the vertical separation between successive rows of holes (104) within each panel (102). The horizontal spacing (25) contributes to the creation of turbulent airflow conditions that enhance paint particle separation efficiency.

[0064] The dimensional specifications ensure that each panel (102) can be manufactured with consistent tolerances that maintain the performance characteristics of the paint arrestor filter (100). The combination of the hole spacing (60), horizontal spacing (25), edge margin (40), hole diameter (4.5), hole interval (30), panel length (350), and section length (150) provides comprehensive manufacturing guidelines that ensure reproducible performance across multiple filter units. The dimensional specifications support the reusable nature of the paint arrestor filter (100) by providing structural durability that withstands multiple cleaning and reuse cycles.

[0065] As illustrated in figure 6, the detail view labeled "DETAIL-L2" shows a filter array (450) with section length (150), edge spacing (12.5), and side margin (17.5) for a quantity of 04 NOS. / SET. The paint arrestor filter (100) incorporates a filter array (450) configuration thatprovides systematic arrangement of holes (104) within defined dimensional parameters for each panel (102). The filter array (450) serves as the foundational design framework with section length (150), edge spacing (12.5), and side margin (17.5) for a quantity of 04 NOS. / SET. The filter array (450) configuration ensures consistent manufacturing specifications while providing the structural framework necessary for effective paint particle separation through controlled airflow patterns. The holes are arranged in two parallel rows creating a uniform pattern across the panel surface with precise dimensional specifications for the spacing and positioning of components, with measurements provided in both horizontal and vertical directions.

[0066] As depicted in figure 7, the filter panel layout shows section length (190), horizontal spacing (25), edge margin (35), section height (47.6), edge spacing (55), section width (90), and panel width (400). Each panel (102) incorporates various section lengths including section length (150), section length (156), section length (190), and section length (356) defining the internal sectional divisions within the panel structure. The section lengths determine the spacing between partition elements dividing each panel (102) into functional zones for controlled airflow distribution. The panel has a section length (190) that defines internal sectional divisions within the panel structure. The layout incorporates horizontal spacing (25) between successive elements and a hole interval (30) between hole positions. The section height (47.6) establishes the vertical dimension of individual sections. The panel width (400) defines the overall transverse dimension of the structure. The diagram shows a systematic arrangement of circular openings distributed in multiple rows and columns, with the holes positioned to create a specific filtration configuration.

[0067] As shown in figure 8, the detail view labeled "DETAIL-L3" illustrates a filter array (450) with hole diameter (4.014), horizontal spacing (25), section length (150), edge margin (12.0), and panel width (17.4) for 04 NOS. / SET. The filter array (450) comprises a series of holes with hole diameter (4.014) arranged in a linear pattern. The holes are spaced with horizontal spacing (25) between adjacent holes. The section length (150) defines the overall length of the filter array segment. An edge margin (12.0) is provided along the perimeter of the array, while panel width (17.4) establishes the dimensional boundaries. The holes (104) are arranged with specific horizontal spacing (25) and vertical spacing (80) between adjacent openings to optimize the filtration performance. The arrangement creates filter arrays including filter array (440) and filter array (450) that span across each panel (102) with defined dimensional specifications. The drawing indicates that this detail configuration is repeated in a quantity of 04 NOS. / SET.

[0068] As illustrated in figure 9, the detailed view of a filter array (450) shows horizontal spacing (25), hole spacing (50), side margin (17.5), panel length (350), and panel edge (20) configuration. The filter array (450) shows a systematic arrangement of holes in a panel configuration. The panel incorporates horizontal spacing (25) between rows of holes and hole spacing (50) between adjacent holes in each row. The panel length (350) defines the overall longitudinal dimension of the structure, while panel edge (20) forms the outer boundary. A side margin (17.5) extends along the perimeter of the filter array (450), creating a defined border around the hole pattern arrangement. The cross-sectional view demonstrates how the holes (104) in different panels (102) are positioned to prevent linear airflow through the paint arrestor filter (100). The non-aligned arrangement of holes (104) across the vertical stack creates a zig-zag airflow path that generates turbulence conditions necessary for paint particle separation.

[0069] As shown in figure 10, the detail view labeled "DETAIL-L4" illustrates a filter array (450) with section length (150), side margin (17.5), panel length (487.5), and mounting clearance (4) for 04 NOS. / SET. The filter array (450) comprises a series of holes arranged in two parallel rows extending across panel length (487.5). The holes are spaced with section length (150) intervals defining the internal sectional divisions. A side margin (17.5) is incorporated along the panel edges. The drawing includes mounting clearance (4) specification and indicates that this detail configuration is to be manufactured in a quantity of 04 NOS. / SET. Each panel (102) comprises a panel edge (20) that defines the perimeter boundary of the panel structure. The panels (102) are configured with various section widths including section width (65) and section width (90) that determine the internal spacing between different sections of the filter assembly. The panels incorporate edge margins including edge margin (35) and edge margin (12.0), edge spacing including edge spacing (12.5) and edge spacing (55), and side margins including side margin (17.5). Additional dimensional specifications include border width (40), border margin (45), mounting clearance (4), and section height (47.6).

[0070] As depicted in figure 11, the detail view labeled "DETAIL-L5" shows a filter array (450) with horizontal spacing (25), section length (150), edge spacing (12.5), and mounting clearance (4) for 04 NOS. / SET. The filter array (450) extends across the panel with section length (150) defining internal sectional divisions. The structure incorporates horizontal spacing (25) between elements and maintains edge spacing (12.5) along the boundaries. A mounting clearance (4) is provided at specific locations. The filter array (450) features a systematic arrangement of circularopenings organized in two parallel rows across the panel surface. The holes (104) in different panels are arranged in different patterns to prevent linear airflow through the paint arrestor filter (100) and create a zig-zag airflow path thereby generates turbulence for paint particle separation. The holes (104) in each panel (102) are formed with various hole diameters including hole diameter (4.014) and hole diameter (10) providing the appropriate opening sizes for paint particle separation while maintaining adequate airflow capacity.

[0071] As illustrated in figure 12, the filter array (440) configuration shows panel width (400), panel height (490), and section length (356) with systematic hole pattern arrangement including colored hole distributions. The filter array (440) extends across panel width (400) and includes panel height (490) that defines the vertical dimension. The holes are arranged in multiple rows and columns with section length (356) establishing internal sectional divisions. The diagram shows circular openings distributed in a systematic pattern, with magenta-colored holes in two distinct bands across the array and green-colored holes arranged in the remaining sections. The holes are positioned with specific spacing intervals to create a structured filtration pattern across the panel surface. The reusable stainless steel material composition provides enhanced durability and economic advantages over conventional filtration media. The reusable stainless steel material provides structural integrity and chemical resistance necessary for paint booth environments. The stainless steel construction offers superior mechanical properties compared to disposable filter media, allowing the panels (102) to withstand the operational stresses encountered during paint booth exhaust air filtration.

[0072] As shown in figure 13, the detail view labeled "DETAIL-L6" illustrates a filter array (450) with panel length (487.5), hole diameter (10), horizontal spacing (25), section length (150), edge spacing (12.5), and panel length (451.4) for 04 NOS. / SET. The filter array (450) comprises a series of holes with hole diameter (10) arranged in a linear pattern. The holes are spaced with horizontal spacing (25) between adjacent holes. The section length (150) defines the overall length of the filter array segment. An edge spacing (12.5) is provided along the perimeter of the array. The panel length (451.4) establishes the total longitudinal dimension of the filter array (450). The drawing indicates that this detail configuration is repeated in a set of 04 NOS. / SET. The panels (102) are made of a reusable stainless steel material that allows cleaning with biochemical, chemical, or ultrasonic clearing systems and reused without any media like paper, cardboard, glass fiber orsynthetic media. The stainless steel material composition enables the panels (102) to withstand aggressive cleaning procedures that would damage or destroy conventional filter media.

[0073] As depicted in figure 14, the comprehensive filter array (450) shows horizontal spacing (25), edge margin (35), hole spacing (50), section width (65), panel section (95), section length (150), side margin (17.5), border width (40), spacing interval (57.5), partition gap (37.5), filter segment (67.5), panel division (87.5), and section spacing (92.5). The filter array (450) illustrates a systematic arrangement of circular holes organized in multiple rows and columns. The filter array (450) incorporates specific dimensional parameters including horizontal spacing (25) between rows and edge margin (35) around the perimeter. The design features border width (40) that defines the outer boundaries, while hole spacing (50) determines the distance between adjacent holes. The structure includes section width (65) that establishes internal divisions within the array. The panel section (95) creates defined zones within the filter array (450), with section length (150) determining the longitudinal dimensions of these zones. The arrangement incorporates spacing interval (57.5) between certain elements and side margin (17.5) along the edges. A partition gap(37.5) separates distinct sections, while filter segment (67.5) defines specific filtration areas. The panel division (87.5) creates structured segments within the array, complemented by section spacing (92.5) that maintains proper separation between major sections. The holes are arranged in both green and pink colored patterns across the filter array (450), creating distinct filtration zones within the panel assembly.

[0074] As illustrated in figure 15, the detail view labeled "DETAIL-L7" shows a filter array with section length (150), edge spacing (12.5), side margin (17.5), mounting clearance (4), and panel length (487.5) for 04 NOS. / SET. The filter array extends across panel length (487.5) and incorporates multiple sections defined by section length (150). The array includes edge spacing(12.5) around the perimeter and maintains side margin (17.5). The configuration includes circular openings arranged in two parallel rows with mounting clearance (4) specified for the holes. The holes are positioned systematically across the panel surface to create a uniform pattern within the defined dimensional boundaries. The hole diameters are selected to create the desired turbulence characteristics when air passes through the holes (104) in the vertical stack arrangement. The standardized hole diameters ensure consistent manufacturing specifications across all panels (102) in the paint arrestor filter (100).

[0075] As shown in figure 16, the paint arrestor filter panel layout shows panel height (490), panel width (400), hole diameter (10), and border margin (45) with systematic arrangement of circular openings. The panel has panel height (490) and panel width (400), with border margin (45) extending around the perimeter. The panel features a systematic arrangement of circular openings with hole diameter (10) distributed across multiple rows and columns. The holes are organized in a uniform pattern throughout the panel surface, creating a structured filtration array. The dimensional layout shows precise spacing and positioning of holes that form the filter array structure. The paint arrest filter (100) comprises a plurality of columns (106) providing structural support and connection between the panels (102) in the vertical stack arrangement. The plurality of columns (106) serves as the primary structural framework maintaining proper alignment and spacing between each panel (102) throughout the filter assembly.

[0076] The internal assembly structure incorporates two parallel columns of filter elements arranged within the cross-sectional framework. Each column contains multiple panels (102) with holes (104) arranged in specific patterns that contribute to the overall turbulence generation mechanism. The parallel column arrangement provides balanced airflow distribution across the cross-sectional area of the paint arrestor filter (100) while maintaining the structural integrity of the vertical stack configuration.

[0077] The cross-sectional assembly configuration reveals how the holes (104) in each panel (102) are distributed across the panel surface to create controlled airflow patterns. The holes (104) include various sizes and arrangements that work together to generate the turbulent conditions necessary for paint particle separation. The cross-sectional view shows how larger and smaller diameter holes (104) are systematically distributed across the panels (102) to optimize paint collection efficiency while maintaining adequate airflow capacity.

[0078] The vertical stack arrangement as illustrated in the cross-sectional view creates multiple airflow direction changes that cause paint particles to separate from the exhaust air steam. As air passes through the holes (104) in each successive panel (102), the varying hole patterns force the air to follow a tortuous path that generates turbulence. The turbulent airflow conditions cause paint particles to lose momentum and adhere to the surfaces of the panels (102) while allowing clean air to continue through the paint arrestor filter (100).

[0079] The cross-sectional assembly configuration demonstrates how the structural supports connect the panels (102) in the vertical stack while maintaining proper spacing for airflow. The structural framework as illustrated in the cross-sectional view provides the mechanical support necessary to maintain panel alignment during operation while accommodating the airflow patterns created by the strategically positioned holes (104). The assembly configuration ensures that each panel (102) remains properly positioned to maintain the zig-zag airflow path throughout the operational life of the paint arrestor filter (100).

[0080] The internal assembly structure in figure 9 illustrates how the paint arrestor filter (100) creates effective paint particle separation through the combination of multiple panels (102) with different hole patterns. The cross-sectional configuration provides the framework for systematic airflow control that generates the turbulence conditions necessary for paint particle capture while allowing clean air to pass through the filter assembly. The vertical stack arrangement with strategically positioned holes (104) creates the intended airflow path that maximizes paint particle separation efficiency while maintaining the structural durability required for reusable filtration applications.

[0081] The ultrasonic clearing systems provide effective cleaning of the metal panels (102) by generating high-frequency vibrations that dislodge paint particles from the surface and internal structures of the holes (104). The metal material composition responds effectively to ultrasonic cleaning energy, allowing for thorough removal of paint deposits without mechanical scrubbing or abrasive cleaning methods. The ultrasonic cleaning capability ensures that the holes (104) maintain their original dimensions and surface characteristics after multiple cleaning cycles.

[0082] Glass fiber filter media present handling hazards and cannot withstand the mechanical stresses associated with cleaning procedures. The metal panels (102) eliminate the health and safety concerns associated with glass fiber media while providing superior mechanical durability. The metal construction allows for safe handling during installation, maintenance, and cleaning operations without risk of fiber release or inhalation hazards.

[0083] Synthetic media filters typically require replacement after paint loading reaches capacity and cannot be effectively cleaned for reuse. The metal panels (102) provide unlimited cleaning and reuse capability, eliminating the recurring costs associated with synthetic media replacement.The metal material composition maintains consistent filtration performance through multiple cleaning and reuse cycles without degradation in paint particle separation efficiency.

[0084] The reusable metal material composition enables the paint arrestor filter (100) to provide long-term economic benefits through reduced operating costs and elimination of disposable filter media. The metal panels (102) are cleaned and reused hundreds of times without replacement, providing substantial cost savings compared to disposable filter systems. The durability of the metal material composition ensures consistent filtration performance throughout the operational life of the paint arrestor filter (100).

[0085] The metal construction provides thermal stability that allows the panels (102) to operate effectively across a wide range of temperature conditions encountered in paint booth applications. The thermal properties of the metal material prevent dimensional changes that could affect the hole (104) patterns and airflow characteristics. The thermal stability ensures that the zig-zag airflow path created by the holes (104) remains consistent regardless of temperature variations in the paint booth exhaust air stream.

[0086] In an exemplary embodiment, the paint arrestor filter (100) incorporates specific operating performance characteristics that define the operational capabilities and limitations for paint booth exhaust air filtration applications. The performance specifications provide guidelines for proper installation and operation of the paint arrestor filter (100) within various paint booth configurations while ensuring effective paint particle separation and adequate airflow capacity.

[0087] The paint arrestor filter (100) is also capable of sustaining face wind velocities up to 3 m / s during normal operation. The face wind velocity specification defines the maximum air velocity and is maintained across the surface area of the paint arrestor filter (100) while preserving the turbulent airflow patterns created by the strategically positioned holes (104) in each panel (102). The 3 m / s face wind velocity capability ensures that the paint arrestor filter (100) can accommodate the airflow requirements of various paint booth sizes and configurations. The face wind velocity capability of 3 m / s provides adequate airflow capacity for paint booth applications while maintaining the zig-zag airflow path that generates turbulence for paint particle separation. The airflow velocity specification ensures paint particles remain suspended in the air stream long enough to encounter the turbulent conditions created by the holes (104) in the vertical stackarrangement. The 3 m / s specification provides the balance between adequate airflow capacity and effective paint particle capture efficiency.

[0088] The paint arrestor filter (100) operates with a maximum recommended pressure drop of 1000 Pa across the filter (100) assembly. The pressure drop specification defines the resistance to airflow created by the paint arrestor filter (100) when air passes through the holes (104) in the vertical stack of panels (102). The 1000 Pa maximum pressure drop ensures that the paint arrestor filter (100) can be integrated into paint booth exhaust systems without requiring excessive fan capacity or energy consumption.

[0089] The operating performance characteristics enable the paint arrestor filter (100) to provide effective paint particle separation across a wide range of paint booth operating conditions. The combination of 3 m / s face wind velocity capability and 1000 Pa maximum pressure drop provides operational flexibility for various paint booth sizes, exhaust fan capacities, and airflow requirements. The performance specifications ensure that the paint arrestor filter (100) can maintain effective filtration performance regardless of variations in paint booth operating conditions.

[0090] The paint arrestor filter (100) provides compatibility with different paint types including solvent-based paints and water-borne paints. The reusable metal material construction of the panels (102) provides chemical resistance against both solvent -based and water-borne paint formulations. The metal panels (102) can withstand exposure to organic solvents present in solvent-based paints without degradation in structural integrity or filtration performance.

[0091] Solvent-based paints contain organic solvents that can attack conventional filter media materials, causing degradation and reduced filtration efficiency. In an exemplary embodiment, the metal construction of the panels (102) provides chemical compatibility with organic solvents, allowing the paint arrestor filter (100) to maintain consistent performance when filtering exhaust air from solvent-based paint applications. The chemical resistance ensures that the holes (104) maintain their dimensional specifications and airflow characteristics when exposed to solvent vapors. Water-borne paints present different challenges including moisture content and waterbased carrier systems that can cause swelling or degradation in conventional filter media. The metal panels (102) provide moisture resistance that prevents dimensional changes or structural degradation when exposed to water-borne paint particles and moisture. The metal constructionmaintains consistent hole (104) dimensions and airflow patterns regardless of moisture content in the exhaust air stream.

[0092] The turbulent airflow patterns created by the holes (104) in the vertical stack arrangement provide effective paint particle separation for both solvent-based and water-borne paint formulations. The zig-zag airflow path generates turbulence conditions that cause paint particles to lose momentum and adhere to the surfaces of the panels (102) regardless of the paint type or carrier system. The turbulence generation mechanism remains effective across the range of particle sizes and characteristics present in different paint formulations.

[0093] A method of filtering paint booth exhaust air comprises directing paint booth exhaust air through the paint arrestor filter (100) to achieve effective paint particle separation through controlled turbulent airflow patterns. The method utilizes the unique configuration of the plurality of panels (102) arranged in a vertical stack, where each panel (102) contains strategically positioned holes (104) with different patterns, sizes, and locations that create the desired airflow characteristics for paint particle capture.

[0094] The method begins with directing paint booth exhaust air through the paint arrestor filter (100), where the exhaust air enters the filter assembly and encounters the first panel (1001) in the vertical stack arrangement. The exhaust air passes through the holes (104) in the first panel (1001) and continues through subsequent panels including the second panel (1002), third panel (1003), fourth panel (1004), fifth panel (1005), sixth panel (1006), seventh panel (1007) and eighth panel (1008). The sequential passage of exhaust air through each panel (102) creates multiple filtration stages that progressively separate paint particles from the air stream.

[0095] The different hole patterns in the plurality of panels (102) create turbulent airflow that separates paint particles from the exhaust air steam during the filtration process. The non-uniform arrangement of holes (104) across the panels (102) prevents linear airflow through the paint arrestor filter (100) and forces the exhaust air to follow a zig-zag airflow path. The zig-zag airflow path generates turbulence conditions that cause paint particles to lose momentum and change direction repeatedly as the air moves through the vertical stack arrangement.

[0096] The turbulent airflow conditions created by the different hole patterns cause paint particles to separate from the exhaust air steam by reducing the particle velocity and disrupting the laminar flow characteristics. The turbulence generation mechanism forces paint particles to encountersudden direction changes and velocity variations that overcome the particle inertia and cause the particles to deviate from the primary airflow path. The turbulent conditions create localized pressure variations and flow disturbances that enhance the probability of paint particle capture.

[0097] The method includes causing the paint particles to adhere to surfaces of the panels (102) while allowing clean air to pass through the paint arrestor filter (100). The turbulent airflow conditions generated by the holes (104) in different panels (102) cause paint particles to impact the surfaces of the panels (102) where the particles adhere due to surface tension and adhesive forces. The paint particles accumulate on the panel surfaces while the clean air continues through the holes (104) and exits the paint arrestor filter (100).

[0098] The paint particle adhesion occurs when the turbulent airflow forces paint particles to contact the surfaces of the panels (102) around the holes (104) and on the internal structures of the filter assembly. The paint particles adhere to the metal surfaces of the panels (102) through van der Waals forces, electrostatic attraction, and mechanical entrapment within surface irregularities. The adhesion mechanism allows paint particles to be retained on the panel surfaces while the clean air passes through the paint arrestor filter (100) without obstruction.

[0099] The clean air passage through the paint arrestor filter (100) occurs as the exhaust air, now separated from paint particles, continues through the holes (104) in each panel (102) and exits the filter assembly. The clean air maintains adequate flow velocity to pass through the paint arrestor filter (100) while the paint particles remain adhered to the panel surfaces. The separation process allows the clean air to be discharged from the paint booth exhaust system while the paint particles are captured and retained within the paint arrestor filter (100).

[0100] The method further comprises cleaning the paint arrestor filter (100) to remove adhered paint particles and restore the filtration capacity of the filter assembly. The cleaning process utilizes the reusable metal material construction of the panels (102) that allows for effective removal of accumulated paint particles without damage to the filter structure. The cleaning procedures can be performed using chemical cleaning systems or ultrasonic cleaning systems that dissolve or dislodge paint particles from the panel surfaces.

[0101] The chemical cleaning process involves exposing the paint arrestor filter (100) to specialized solvents and cleaning agents that dissolve the adhered paint particles from the surfaces of the panels (102). The chemical cleaning agents penetrate the paint deposits and break down theadhesive bonds between the paint particles and the metal surfaces. The dissolved paint particles are removed from the paint arrestor filter (100) through rinsing procedures that flush the cleaning solution and dissolved paint residue from the filter assembly.

[0102] The ultrasonic cleaning process utilizes high-frequency vibrations to dislodge paint particles from the surfaces of the panels (102) without mechanical scrubbing or abrasive cleaning methods. The ultrasonic energy creates cavitation bubbles in the cleaning solution that collapse near the panel surfaces and generate localized pressure waves that remove adhered paint particles. The ultrasonic cleaning process effectively removes paint deposits from the holes (104) and internal structures of the panels (102) while preserving the dimensional specifications and surface characteristics of the filter assembly.

[0103] The method includes reusing the paint arrestor filter (100) for subsequent filtration operations after the cleaning process removes the adhered paint particles. The reusable metal material construction of the panels (102) allows the paint arrestor filter (100) to be cleaned and reused multiple times without degradation in filtration performance. The cleaned paint arrestor filter (100) maintains the original hole patterns and dimensional specifications that create the turbulent airflow conditions necessary for paint particle separation.

[0104] The reusing process involves reinstalling the cleaned paint arrestor filter (100) in the paint booth exhaust system and resuming normal filtration operations. The cleaned panels (102) provide the same turbulent airflow characteristics and paint particle separation efficiency as the original filter configuration. The reusable nature of the paint arrestor filter (100) allows for repeated cleaning and reuse cycles that provide economic advantages through reduced operating costs and elimination of disposable filter media replacement requirements.

[0105] The method provides effective paint particle separation across multiple cleaning and reuse cycles while maintaining consistent filtration performance. The turbulent airflow patterns created by the holes (104) in the plurality of panels (102) remain effective after cleaning procedures, ensuring that subsequent filtration operations achieve the same paint particle capture efficiency. The method enables continuous paint booth operations with periodic cleaning intervals that restore the paint arrestor filter (100) to original performance specifications.

[0106] The method accommodates various paint types including solvent -based paints and waterborne paints through the same filtration and cleaning procedures. The turbulent airflow generationmechanism remains effective for different paint formulations, while the cleaning procedures can be adapted to remove specific paint types using appropriate solvents and cleaning agents. The method provides operational flexibility for paint booth applications that utilize different paint systems and formulations.

[0107] Further, the number of holes (104) are punched on each panel (102) of the filter (100). Further, the number of holes (104) location pattern is also different for all the panels. After assembly of the punched plates, the polluted air (air with paint particles) strikes to the front face of the filter and enters into the filter through the number of holes (104).

[0108] Further, each panel (102), of the filter (100), has a unique arrangement of the number of holes (104), and they are arranged in different patterns. Each panel (102) is un-identical to each other and divided into sections by partition panel on bottom face at a certain interval. Further, the partition panel also has holes to enable air to flow from one section to another section.

[0109] Further, the number of openings in each panel (102) is calculated on based of certain area of total opening. Air does not directly pass through filter (100) in a linear path, whereas it has to follow a zig-zag pattern of path many times before it exits the filter. The zig-zag pattern of flow from different sections creates air turbulence within the filter (100) sections allow most of amount of paint to stick to the walls and restrict paint to travel to other parts as well as outside filter housing. Side slots on the layers are available for easy filter cleaning. Further, the paint arrestor filter for paint booth exhaust air filters can sustain up to 3m / s of face velocity. Maximum recommended pressure drops across filter lOOOpa.

[0110] Further, the paint arrestor filter (100) for paint booth exhaust air is made of metal which can be cleaned with chemical or ultrasonic clearing system and reuse. Further, the paint arrestor filter (100) for paint booth exhaust air filter does not have any media like paper, cardboard, glass fiber and synthetic media. The reusable filter has different layers of different sized holes punched on each panel and are assembled in predefined manner.TECHNICAL ADVANCEMENT:

[0111] The paint arrestor filter for paint booth exhaust air is replacing cardboard or synthetic media paint arresting filters with reusable type paint arresting filter, many of above-mentioned problems may be catered as follows. i. The paint arrest filter is reducing running cost as same filter is adaptable to reused after cleaning. ii. The paint arrestor filter is environment friendly as eliminating use of paper thereby, saving trees and not making any pollution during disposal of the filter. iii. The present invention improves operational efficiency through extended service intervals between maintenance procedures. iv. The paint arrestor filter is reusable thereby, reducing transportation cost for used filter needed to be disposed in certain time period after use. v. The paint arrestor filter is eliminating need for big storage space for spare filters inventory and used filter disposal area and further only requiring filter cleaning space. vi. The paint arrestor filter is a common filter for solvent based or water borne paint, 1 K or 2K paint. vii. The present invention provides enhanced chemical compatibility across various paint formulations including solvent-based and water-borne paint systems. viii. The paint arrestor filter for paint booth exhaust air has high strength to handle higher face velocity much higher than 1.5 m / s and capable of catering up to 2.5 to 3.0 m / s which further reduces plant footprint. ix. The present invention provides consistent filtration performance through multiple cleaning and reuse cycles. x. The present invention provides thermal stability across wide temperature ranges encountered in paint booth applications.xi. The present invention improves structural durability through superior mechanical properties compared to disposable filter media. xii. The present invention improves quality control through elimination of variability associated with disposable filter media manufacturing.

[0112] Features of any of the examples or embodiments outlined above may be combined to create additional examples or embodiments without losing the intended effect. It should be understood that the description of an embodiment or example provided above is by way of example only, and various modifications could be made by one skilled in the art. Furthermore, one skilled in the art will recognize that numerous further modifications and combinations of various aspects are possible. Accordingly, the described aspects are intended to encompass all such alterations, modifications, and variations that fall within the scope of the appended claims.

Claims

CLAIMS1. A paint arrestor filter (100), for filtering paint booth exhaust air, comprising:• a plurality of panels (102) arranged in a vertical stack made of a reusable material, each panel having a plurality of holes (104) formed in the panel with strategically designed hole patterns,• a plurality of columns (106) connecting the panels in the vertical stack, the columns being fixed at one or more corners of each panel and having a top side installed with a loop for firm installation,• a plurality of mounting holes (108) positioned at predetermined locations on each panel for securing the filter assembly, wherein,• each panel (102) has a unique arrangement of holes (104) with different hole patterns, sizes, and locations that are non-identical to other panels in the stack, and• the holes (104) in different panels are arranged in different patterns to prevent linear airflow through the paint arrestor filter (100) and create a zig-zag airflow path thereby generates turbulence for paint particle separation.

2. The paint arrestor filter (100) as claimed in claim 1, wherein the plurality of panels (102) comprises a first panel (1001), a second panel (1002), a third panel (1003), a fourth panel (1004), a fifth panel (1005), a sixth panel (1006), a seventh panel (1007) and a eighth panel (1008).

3. The paint arrestor filter (100) as claimed in claim 1, wherein the panels (102) are made of a reusable metal material that allows cleaning with chemical or ultrasonic clearing systems and reuse without any media like paper, cardboard, glass fiber or synthetic media.

4. The paint arrestor filter (100) as claimed in claim 1, wherein the reusable material comprises metal.

5. The paint arrestor filter (100) as claimed in claim 1, wherein the holes (104) in at least one panel (102) are arranged with a hole spacing (60) between adjacent holes (104) and a horizontal spacing (25) between rows of holes (104).

6. The paint arrestor filter (100) as claimed in claim 1, wherein each panel (102) comprises an edge margin (40) around a perimeter of the panel (102).

7. The paint arrestor filter (100) as claimed in claim 1, wherein the holes (104) are arranged in a filter array (450) having defined dimensions for each panel (102).

8. The paint arrestor filter (100) as claimed in claim 1, wherein the panels (102) are divided into sections by partition panels on bottom faces at certain intervals, the partition panels also having holes (104) to enable air flow from one section to another section.

9. The paint arrestor filter (100) as claimed in claim 1, wherein the filter (100) is capable of sustaining face wind velocities up to 3 m / s with maximum recommended pressure drop of 1000 Pa across the filter (100).

10. A method of filtering paint booth exhaust air comprising:• directing paint booth exhaust air through the paint arrestor filter (100), wherein the different hole patterns in the plurality of panels (102) create turbulent airflow that separates paint particles from the exhaust air stream by causing the paint particles to adhere to surfaces of the panels (102) while allowing clean air to pass through the paint arrestor filter (100), and• cleaning the paint arrestor filter ( 100) to remove adhered paint particles and reusing the paint arrestor filter (100) for subsequent filtration operations.

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