• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    grease filter for installation inside an opening of a commercial cooker hood. the present invention relates to a support for mounting a filter on an exhaust hood that includes a clamp part, a retainer part and a support part. the clip part includes a first wall and a second wall that are substantially parallel to each other with a space formed between them. the support part is arranged between the clamp part and the containment part and the support part includes a hole formed therein. the filter includes an external support frame incorporated into a filter block, the external support frame being configured to provide support for the filter block to keep the filter block in a generally flat configuration. the filter block includes fibers selected from the group consisting of: wool fibers, wood-based viscose fibers and cellulose-based synthetic fibers, the fibers being configured to absorb grease particles.
    公开号:BR112015031270B1
    申请号:R112015031270-5
    申请日:2014-06-13
    公开日:2021-03-23
    发明作者:Jordan Salpietra
    申请人:Jordan Salpietra；
    IPC主号:
    专利说明:

    [0001] [0001] The invention generally relates to filters, supports or supports for mounting filters and methods of mounting filters. SUMMARY OF THE INVENTION
    [0002] [0002] Filters can be used in canopies or hoods that overlap with large grills, barbecues, stoves, stoves and similar equipment in restaurant kitchens and other facilities where food is prepared. Such filters can typically be provided with a rectangular frame to which rows of deflectors are attached in stepwise relationship to form a flame retardant and / or grease filter for a kitchen ventilation / exhaust system. However, there remains a need for a disposable grease filter block, which is removable and replaceable, and which can be sandwiched into a separate UL1046 listed grease filter. The disposable grease filter block can be in place to extract grease from the fat-laden exhaust air and be removed to allow direct cleaning of all other filter surfaces.
    [0003] [0003] Grease filters and / or grease removal devices can be installed in the exhaust hoods above various types of cooking equipment that include, for example, fryers, grills, plates and ovens where excessive heat and flame can occur. In applications using existing fiber or wool-based filters, problems can be encountered due to excessive heat or flame. Unless stainless steel heat shields are placed in front of the wool filters, there is a possibility that heat concentrations (for example, from the exhaustion of cooking equipment) may degrade the wool fibers and cause the wool fibers to degrade. a hole forms in the filter. Similarly, flames can make holes in the filter if they come into direct contact with the filter, which can happen above plates and grids with a flare of grease. This is a major disadvantage, since a hole in the filter makes it ineffective and requires the filter to be replaced.
    [0004] [0004] Existing wool filters often require a separate support frame and an additional frame cover made of metal, which is expensive, labor intensive, heavy for the operator to use and susceptible to damage, often requiring a expensive replacement. This set, often coupled with optional heat protection, makes the current wool-based system not only expensive to produce, but can be difficult for the user to operate. In addition, there are existing wool filters that include a non-metallic support frame that is incorporated within a filter mat, but this does not allow reuse of the support frame, making filter replacement very expensive for operations.
    [0005] [0005] According to one embodiment of the invention, a filter may have lower and upper baffle assemblies on one side, a removable perforated insert, a disposable grease filter block and a single baffle assembly on the other side, to define a tortuous path to the exhaust air flowing through it. In addition, a kitchen ventilation system can be provided that includes a food preparation appliance, such as a grill, a grill, a stove or a stove and the canopy located above the appliance to exhaust the air that rises from the appliance and is loaded with fat and / or oil vapors. A grease filter, according to the modalities of the invention, can be mounted inside a mouth of the canopy and can be removed from it to clean.
    [0006] [0006] According to another embodiment of the invention, a filter set may include a reusable external support frame incorporated into a filter block, the reusable support frame being configured to provide support for the filter block to hold the block filter in a generally flat configuration and the filter block comprises fibers configured to absorb particulates of fat, such as, for example, wool fibers, viscose fibers based on wool and synthetic fibers based on cellulose. The filter block can be retracted at the edges of the reusable external support frame at the rear.
    [0007] [0007] In one embodiment of the invention, a filter set may include a filter block comprising fibers that include hybrid, synthetic and / or natural fibers. The filter block can be retracted at the respective edges of the reusable non-combustible support frame at the rear. The reusable support frame can be configured to provide support for the filter block to keep the filter block in a generally flat configuration. According to a particular embodiment, the filter block can be composed of at least the first and second fibrous mats that are coupled together. This joined filter block can be retracted at the respective edges on the rear side of the non-combustible reusable support frame.
    [0008] [0008] Then, the modalities of the invention provide a set of filters that have a reusable external support frame that does not consist of multiple parts. In addition, the filter set is effective in removing or reducing fat particulates from the fat-laden air. As a result, deflector filters can remain cleaner for a longer period of time, thus being an even more effective fire barrier, since the fuel source (eg, grease particles) has been diminished from the air flow before to reach any deflecting filters and / or piping. In addition, the filter set can distribute the flame more evenly through a deflector filter, when the filter set is located upstream of a deflector filter. As a result, deflector filters can be protected from fire and damage, perform better and stay cleaner for a longer period of time.
    [0009] [0009] According to other embodiments of the invention, a fixing support can create an internal vertical support for metal and fiber based grease filters in commercial kitchen hoods or the like. The support can be made of metal and can include drilled holes spaced along the support channel for draining lard, oils, grease or the like that can be collected in the channel. The support profile can include a U-shaped edge, which can function as a type of hook or clamp. The U-shaped edge can span the lower edge of the exhaust hood opening passage and can be oriented so that the support channel protrudes downstream of the air flow. This configuration allows all types of grease filters to rest within the opening passage, without requiring any welding or structural modifications. The fixing bracket can be easily removed for cleaning and / or maintenance, and assembled in place using a simple dockable installation procedure.
    [0010] [0010] In an embodiment of the invention, a removable fixing support can create a support channel for grease filters or the like, inside an opening opening of a commercial kitchen hood or similar.
    [0011] [0011] In another embodiment of the invention, a filter assembly process comprises inserting a disposable grease filter into the opening passage of a commercial kitchen hood, so that the installation process does not require welding or any other type of structural modification in the existing exhaust hood canopy. A filter assembly process comprises inserting a disposable grease filter into the same filter channel, such as a metal deflector-type grease filter.
    [0012] [0012] In yet another embodiment of the invention, a filter assembly process comprises placing a disposable grease pre-filter in front of a metal deflector-type grease filter and within the opening passage of an exhaust hood. commercial kitchen. In such a configuration, no additional internal or external support is required to keep the disposable grease pre-filter in place.
    [0013] [0013] In yet another embodiment of the invention, an L-shaped metal support can be mounted to the bottom of a deflector-type grease filter for use in commercial kitchen hoods. The L-shaped support can be held in place by means of solder, screw, glue or similar. This configuration creates a space in front of the deflector-type grease filter due to the fact that the front face of the deflector-type grease filter is kept further back. Then, a pre-filter can rest in front of or upstream of the metal deflector-type grease filter with both filters in the same support channel. The L-shaped support may comprise drilled holes, such as drainage holes for draining lard, oils, grease or the like.
    [0014] [0014] Other objectives, resources and advantages of the present invention are evident to persons of ordinary skill in the art in view of the following detailed description of the invention and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
    [0015] [0015] For a more complete understanding of the modalities of the present invention, of the needs met by them and of their objectives, resources and advantages, reference is now made to the description below obtained with the attached drawings.
    [0016] [0016] Figure 1 is an elevation view of the right side of the support, including exemplary dimensions, according to an embodiment of the invention.
    [0017] [0017] Figure 2 is an elevation view of the left side of the support, including exemplary dimensions, according to an embodiment of the invention.
    [0018] [0018] Figure 3 is a top view of the support, including exemplary dimensions, according to an embodiment of the invention.
    [0019] [0019] Figure 4 is an isometric view of the right side of the support, according to an embodiment of the invention.
    [0020] [0020] Figure 5 is a perspective view that depicts where the support is fixed on the commercial kitchen hood, according to an embodiment of the invention.
    [0021] [0021] Figure 6 is a perspective view that depicts the support in its final resting position, after being fixed or hung on the lower edge of the opening passage, according to an embodiment of the invention.
    [0022] [0022] Figure 7 is an elevation view on the right side of the support that depicts how the fixing support can support a metal deflector filter that is, for example, nominal 5.08 centimeters (two inches) thick, according to with one embodiment of the invention.
    [0023] [0023] Figure 8 is an elevation view on the right side of the support that depicts how the fixing support can support a metal deflector filter that is, for example, less than nominal 5.08 centimeters (two inches) in thickness , according to an embodiment of the invention.
    [0024] [0024] Figure 9 is an elevation view on the right side of the support that depicts how the fixing support can support a metal deflector filter that is, for example, between 1.90 cm (0.75 inch) and 3, 81 centimeters (1.5 inches), together with a disposable grease filter on the side of the airflow upstream of the metal deflector filter, according to an embodiment of the invention.
    [0025] [0025] Figure 10 is a front side view of an L-shaped support, including exemplary dimensions, according to an embodiment of the invention.
    [0026] [0026] Figure 11 is a right side view of the L-shaped support that includes exemplary dimensions, according to an embodiment of the invention.
    [0027] [0027] Figure 12 is a right side view of the assembly between the L-shaped support and the metal deflector type grease filter. # 1 corresponds to the L-shaped support, # 2 corresponds to the metal deflector type grease filter and # 3 corresponds to the connection area between # 1 and # 2, according to an embodiment of the invention.
    [0028] [0028] Figure 13 is a right isomeric view of the completed L-shaped support and of the filter set, according to an embodiment of the invention.
    [0029] [0029] Figure 14 is a perspective view that depicts the combination of L-shaped support and the deflector filter in its final resting position, within the opening passage of a commercial kitchen exhaust hood, according to a modality of invention.
    [0030] [0030] Figure 15 is a right side view of the disposable fat pre-filter (# 1) in its final resting position, in front of the metal deflector type fat filter (# 2) and inside the opening passage (# 3) of a commercial kitchen hood, according to an embodiment of the invention.
    [0031] [0031] Figure 16 is a perspective view of a grill and an exhaust system using a grease filter, according to an embodiment of the invention.
    [0032] [0032] Figure 17 is a cross-sectional view of the fat filter, along line 2-2 of Figure 16.
    [0033] [0033] Figure 18 is an alternative cross-sectional view of the fat filter, along line 2-2 of Figure 16.
    [0034] [0034] Figure 19 is a perspective view of a grill and the exhaust system that uses the grease filter, according to an embodiment of the invention.
    [0035] [0035] Figure 20 is seen in front elevation on the front side of the filter set that excludes the exemplary dimensions, according to an embodiment of the invention.
    [0036] [0036] Figure 21 is a left elevation view on the left side of the filter set that excludes exemplary dimensions, according to an embodiment of the invention,
    [0037] [0037] Figure 22 is a top elevation view of the top side of the filter set that excludes exemplary dimensions, according to an embodiment of the invention.
    [0038] [0038] Figure 23 is a right elevation view on the right side of the filter set, which excludes exemplary dimensions, according to an embodiment of the invention.
    [0039] [0039] Figure 24 is a bottom elevation view of the bottom side of the filter set that excludes exemplary dimensions, according to an embodiment of the invention.
    [0040] [0040] Figure 25 is a rear elevation view of the rear side of the filter set that excludes exemplary dimensions, according to an embodiment of the invention.
    [0041] [0041] Figure 26 is a cross-sectional view of the fat filter, along line 108-108 of Figure 20.
    [0042] [0042] Figure 27 is a cross-sectional view of the fat filter along line 107-107 of Figure 20.
    [0043] [0043] Figure 28 is a side view of a support frame, according to an embodiment of the invention.
    [0044] [0044] Figure 29 is a perspective view of the support frame, according to an embodiment of the invention.
    [0045] [0045] Figure 30 is a side view of a support frame in an exhaust hood, according to an embodiment of the invention.
    [0046] [0046] Figure 31 is a side view of a support frame with a metal frame and a retaining member, according to an embodiment of the invention.
    [0047] [0047] Figure 32 is a perspective view of a support frame with a frame and a retaining member, according to an embodiment of the invention.
    [0048] [0048] Figure 33 is a front view of a support for a filter, according to an embodiment of the invention.
    [0049] [0049] Figure 34 is a front view of a support frame with a filter, according to an embodiment of the invention.
    [0050] [0050] Figure 35 is a side view of a support frame, according to an embodiment of the invention.
    [0051] [0051] Figure 36 is a side view of a support frame with a deflector filter, according to an embodiment of the invention.
    [0052] [0052] Figure 37 is a perspective view of a support frame with a filter and frame, according to an embodiment of the invention.
    [0053] [0053] Figure 38 is a perspective view of a support frame with a filter and a frame attached with a retaining member, according to an embodiment of the invention.
    [0054] [0054] Figure 39 is a side view of a support frame with a disposable filter and a deflector filter in an exhaust hood that includes an expanded view of a support frame clamp, according to an embodiment of the invention.
    [0055] [0055] Figure 40 is a side view of a support frame with a disposable filter and a deflector filter, according to an embodiment of the invention.
    [0056] [0056] Figure 41 is a side view of a support frame with a disposable filter attached with a retaining member and a deflector filter, according to an embodiment of the invention. DETAILED DESCRIPTION OF MODALITIES OF THE INVENTION
    [0057] [0057] The modalities of the present invention and its features and advantages can be understood by referring to Figures 1 to 41, with similar numbers being used for the corresponding parts in the various drawings.
    [0058] [0058] In one embodiment of the present invention, a fixation support can fit within an exhaust hood opening passage, which allows the fixation support to hold any type of grease filter in place. The fixing support may comprise three folds, one of which is curved and configured to attach to an upright angled or vertical portion. The fixation support can be designed to support the fat filters in commercial kitchen hoods and can comprise a rigid and continuous metal blade that includes three folds in the metal. Figure 1 shows an elevation view of the right side of the support that includes the exemplary dimensions, according to an embodiment of the invention. The left portion of the support in Figure 1 comprises two folds in the metal, which produces the securing section of the support. The right edge furthest from the support, in Figure 1, can serve as a horizontal retainer for any grease filter that rests in the support channel.
    [0059] [0059] One embodiment of the present invention can be configured to support the grease filters inside the opening opening of commercial kitchen hoods. Once the support, according to one embodiment of the present invention, is in position, it can support a deflector filter of any size, with the option of inserting a disposable grease filter upstream of the deflector filter, within the same fixing support. The support can comprise three folds, one of which is curved and configured to attach to an upright angled or vertical portion.
    [0060] [0060] The fixing support can create an internal vertical support for the fiber and metal-based grease filters in commercial kitchen hoods, or the like. The support can comprise metal and can include drilled holes, which can be pushed away along the support channel for draining lard, oils, grease or the like, which can be collected in the channel. The support profile can include a U-shaped edge, which can function as a type of hook or clamp. The U-shaped edge can cross the lower edge of the exhaust hood opening passage and can be oriented so that the support channel protrudes downstream in relation to the air flow. This configuration can allow all types of grease filters to rest within the opening passage, without requiring any welding or structural modifications. The fixing bracket can be easily removed for cleaning and / or maintenance and can be mounted in place using a simple dockable installation procedure. Then, the removable fixing support can create a support channel for grease filters, or the like, on the inside of an opening passage of a commercial kitchen exhaust hood or similar.
    [0061] [0061] A filter assembly process may comprise inserting a disposable grease filter into the opening passage of a commercial kitchen hood, so that the installation process does not require welding, or the like, or any other type of structural modification in the existing exhaust hood canopy. A filter assembly process may comprise inserting a disposable grease filter into the same filter channel, such as a metal deflector-type grease filter.
    [0062] [0062] A filter assembly process may comprise placing a disposable grease pre-filter in front of a metal deflector-type grease filter inside the opening passage of a commercial kitchen hood. In such a configuration, no additional internal or external support may be required to keep the disposable grease pre-filter in place.
    [0063] [0063] A filter assembly process may comprise mounting an L-shaped metal backing to the bottom of a deflector-type grease filter for use in commercial kitchen hoods. The L-shaped support can be held in place by means of solder, screw, glue or similar. This configuration creates a space in front of the deflector-type grease filter, due to the front face of the deflector-type grease filter that is kept farther back. Then, a pre-filter can rest in front of or upstream of the metal deflector-type grease filter with both filters in the same support channel. The L-shaped support may comprise drilled holes such as drainage holes for draining lard, oils, grease or the like.
    [0064] [0064] A filter assembly process may comprise placing a disposable grease pre-filter in front of a metal deflector-type grease filter inside the opening passage of a commercial kitchen hood. No additional internal or external support may be required to keep the disposable grease pre-filter in place.
    [0065] [0065] Figure 2 shows an elevation view of the left side of the support, including exemplary dimensions, according to an embodiment of the invention. The right portion of the support in Figure 2 comprises two folds in the metal, which form the securing section of the support. The left edge furthest from the support in Figure 2 can serve as a horizontal restraint for any grease filter that rests on the support portion of the support that is arranged between the clamp and the restraint.
    [0066] [0066] Figure 3 shows a top view of the support, including exemplary dimensions, according to an embodiment of the invention. As shown in Figure 3, a hole can be formed in the support. In addition, a plurality of holes can be formed in the support and can be spaced apart by a predetermined distance, along the longitudinal direction of the support. The plurality of holes may also be spaced apart or may have varying spacing. Figure 4 shows an isometric view of the right side of the support, according to an embodiment of the invention.
    [0067] [0067] Figure 5 is a perspective view that depicts where the support is fixed on a commercial kitchen hood, according to an embodiment of the invention. The support can be attached to a protruding portion of the exhaust hood. Alternatively, the support can be attached to a protruding portion in the exhaust hood.
    [0068] [0068] Figure 6 is a perspective view that shows the support in its final resting position, after being fixed or hung on the lower edge of the opening passage, according to an embodiment of the invention. The filters can be inserted into the holder, so that a channel portion of the holder supports the filters.
    [0069] [0069] Figure 7 is an elevation view on the right side of the support that depicts how the fixing support can support a metal deflector filter that is, for example, nominal 5.08 centimeters (two inches) thick, according to with one embodiment of the invention.
    [0070] [0070] Figure 8 is an elevation view on the right side of the support that depicts how the fixing support can support a metal deflector filter that is, for example, less than nominal 5.08 centimeters (two inches) in thickness , according to an embodiment of the invention.
    [0071] [0071] Figure 9 is an elevation view on the right side of the support that depicts how the fixing support can support a metal deflector filter that is, for example, between 1.90 cm (0.75 inch) and 3, 81 centimeters (1.5 inches), together with a disposable grease filter on the side of the airflow upstream of the metal deflector filter, according to an embodiment of the invention. The disposable grease filter, or pre-filter, can be inserted adjacent to the deflector type filter, so that the support supports the pre-filter and the deflector type filter.
    [0072] [0072] Figure 10 shows a front side view of an L-shaped support that includes exemplary dimensions, according to an embodiment of the invention.
    [0073] [0073] Figure 11 shows a right side view of the L-shaped support that includes exemplary dimensions, according to an embodiment of the invention. The right edge of the support in Figure 11 can comprise a retaining portion. The lower edge of the support in Figure 11 can comprise a support portion.
    [0074] [0074] Figure 12 shows a right side view of the assembly between the L-shaped support and the metal deflector type grease filter. # 1 corresponds to the L-shaped support, # 2 corresponds to the metal deflector type grease filter and # 3 corresponds to the connection area between # 1 and # 2, according to an embodiment of the invention.
    [0075] [0075] Figure 13 depicts a right isomeric view of the completed L-shaped support and of the filter set, according to an embodiment of the invention. # 1 corresponds to the L-shaped support, # 2 corresponds to the metal deflector-type grease filter supported by the L-shaped support. The air flow direction is indicated by the arrow identified as "air flow".
    [0076] [0076] Figure 14 is a perspective view that depicts the combination of L-shaped support and the deflector filter in its final resting position, within the opening passage of a commercial kitchen hood and the assembly process, from according to an embodiment of the invention. Step 1 depicts the original deflector channel of the exhaust hood with a deflector filter that extends beyond the protrusion of the exhaust hood, creating an unsupported portion of the filter. Step 2 depicts the exhaust hood that comprises the protrusion, without a filter installed in it. Step 3 depicts the L-shaped support, according to an embodiment of the invention, with a filter mounted on it, and the L-shaped support / filter combination that is inserted in the exhaust hood.
    [0077] [0077] Figure 15 shows a right side view of the disposable fat pre-filter (# 1) in its final resting position, in front of the metal deflector type fat filter (# 2) and inside the opening passage (# 3) of a commercial kitchen hood, according to an embodiment of the invention.
    [0078] [0078] In addition, a system for exhausting grease and / or hot air filled with oil from a kitchen or similar area can be provided. An example of such a system is shown in Figure 16, in which a canopy 10 extends above the food preparation apparatus 12 to receive air loaded with fat rising from it. Apparatus 12 may include, for example, a grill, a stove, a grill, a stove, or the like, and the canopy 10 may have a mouth 14 that provides an exhaust path for air to leave the area. Fans (not shown) or similar can be located upstream of the mouth 14 in the ventilation system to draw air through the mouth 14.
    [0079] [0079] One or more grease filters 16a can be arranged in the mouth 14 of the canopy 10. Each grease filter 16a can provide a tortuous path "P" for the air loaded with grease, oil and similar contaminants, so that the contaminants adhere to the surfaces of the grease filter 16a and are thus removed from the air.The grease filters 16a can be arranged at an angle within the mouth 14 of the canopy 10, so that when grease or similar substance accumulates within any of the plurality of elongated gutter-shaped deflectors 18 of the fat filter 16a, the fat can slide down from the deflectors 18 and can be directed to a holding reservoir (not shown). Any remaining airborne fat can pass through the block disposable filter 15 for future removal.
    [0080] [0080] Periodically, grease filters 16a may require cleaning. Then, according to the modalities of the invention, the fat filters 16a can be removable from the canopy 10 and can be able to be cleaned effectively, before being reinstalled in the canopy 10.
    [0081] [0081] As depicted in Figure 17, the fat filter 16a may include a front deflector assembly 20, an intermediate deflector assembly 21, an upper deflector assembly 22, a disposable filter block 30, a removable perforated insert 32 and a divider tab. intermediate 34a. The assembly may include a closed frame 24, which may support an array of baffles 18 in a central passage thereof. In Figure 17, the grease filter 16a can define the tortuous paths "P" that can enter the filter 16a through the spacing provided between the baffle matrix 18a of the front baffle assembly 20, then, through the disposable filter block 30, then, through the removable perforated insert 32, then, through the spacing provided between the array of baffles 18b which are deflected downwards, in the baffles 18b, by baffles 18c of the upper baffle assembly 22, and which are then directed upwards, between the baffles 18c and out of the filter 16. To create these paths, the baffles in each set can be laterally spaced, providing passages between them, and the baffles in the opposite sets can be staggered, relative to each other, to eliminate any paths so that the fat-laden air passes directly through the grease filter 16a, without colliding with at least one deflector.
    [0082] [0082] Most of the fat can be filtered from the air flow, through the disposable filter block 15. Any remaining fat carried by the passing air can adhere to the surfaces 40 of the baffles 18c and drip onto the surfaces 42 of the baffles 18b, or adhere directly to surfaces 42. Thereafter, deflectors 18b can act as a channel or chute and direct the accumulation of fat, under the force of gravity, to an end wall 32 of the grease filter 16a. The end wall 32 can have several drainage openings 34a through which the fat can travel in its way to a holding reservoir (not shown).
    [0083] [0083] The grease filter 16a can be produced, for example, from stainless steel, galvanized steel, aluminum or a similar material. The grease filter 16a can be rectangular with dimensions of, for example, about 0.30 to 0.91 meters (one to three feet) for about 0.30 to 0.91 meters (one to three feet) for about several centimeters (inches). Certainly the grease filter can be produced with any dimensions, as desired. A pair of cables 62 can be pivotally connected to the peripheral frame 24 of the lower deflector set 20 which allows quick handling of the fat filters 16a during installation and removal, in relation to the canopy 10. Each deflector can have a wall elongated base 54, the walls of the opposite side 56 and 58 extending transversely thereto to define a channel, or gutter, which can extend from the end wall 46 to the end wall 32 of the grease filter 16a .
    [0084] [0084] In accordance with another embodiment of the invention, an effective and efficient method of cleaning a grease filter 16a from a kitchen ventilation system is provided. The grease filter 16a can be removed from the mouth 14 of the canopy 10, which is located above the food preparation apparatus 12. The grease filter 16a can have lower and upper deflector assemblies 20 and 22 which, in a closed position, defines tortuous paths "P" to exhaust the air through it. The grease filter 16a can also have a disposable filter block 15 in the middle of the grease filter 16a, with the perforated insert 32 resting on the back side of the disposable air block. filter 15.
    [0085] [0085] After the removable set 15 and 32 have been removed, the grease filter 16a can be manually cleaned, for example, with soap and a brush, or it can be cleaned in an automatic dishwasher, or it can be soaked in a container. After the grease filter 16a is cleaned, the removable assembly 15 and 32 can be reinserted in the grease filter 16a, so that the grease filter 16a can be reinserted in the mouth 14 of the canopy 10. Alternatively, as shown in Figure 18, the grease filter 16b can be modified by replacing the front deflector assembly 20 (from Figure 17) with another removable perforated insert 32b.
    [0086] [0086] One embodiment of the invention relates to a system for exhausting grease and / or hot air laden with oil from a kitchen or similar area. An example of such a system is shown in Figure 19, in which a canopy 10 extends above the food preparation apparatus 12 to receive the fat-laden air rising from it. The apparatus 12 may include, for example, a grill, a stove, a barbecue, a stove or the like, and the canopy 10 may have a mouth 14 that provides an exhaust path for air to leave the area. The fans (not shown) or similar can be located upstream of the mouth 14, in the ventilation system, to draw air through the mouth 14.
    [0087] [0087] To mount the grease filter 16, as shown in Figures 20 to 27, the reusable external support frame 101 can be inverted to reveal the folded back edges 103 of the reusable external support frame 101. The edges of the filter block 102 can be pushed under the rear folded edges 103 of the exposed reusable outer support frame 101. With the grease filter assembly 16 completed, the reusable outer support frame 101 can provide support for filter block 102, to keep filter block 102 in a generally flat configuration while protecting filter block 102 to be seen from the kitchen floor.
    [0088] [0088] One or more grease filters 16 can be disposed outside or inside the mouth 14 of the canopy 10. Each grease filter 16 can provide a tortuous path "P" for the air loaded with grease, oil and similar contaminants, so that contaminants adhere to the surfaces of the fat filter 16 and are thus removed from the air Any remaining fat can be exposed to: (i) a UL 1046 22 listed fat filter (as pictured in Figure 20) that can be positioned behind the grease filter 16; and / or (ii) tubing associated with the exhaust hood (not shown) that is configured to remove air from the cooking area (with or without an associated exhaust fan (s) )).
    [0089] [0089] Periodically, the reusable external support frame 101 may require cleaning, while filter block 102 may sometimes need to be replaced. Then, according to the modalities of the invention, the fat filters 16 can be removable from the canopy 10 and can be effectively cleaned / replaced before being reinstalled in the canopy 10.
    [0090] [0090] The reusable external support frame 101 can be produced, for example, from stainless steel, galvanized steel, aluminum or a similar material. The reusable external support frame 101 can be square or rectangular, with dimensions, for example, from about 0.30 to 0.91 meters (one to three feet) for about 0.30 to 0.91 meters (one to three feet) by about several centimeters (inches). Certainly, the grease filter can be produced in any size, as desired. A pair of cables 62 can be pivotally connected to the peripheral frame 24 of the lower deflector set 20 which allows quick handling of the grease filters 16 during installation and removal, in relation to the canopy 10.
    [0091] [0091] Figure 28 shows a side view of a support frame 300, according to an embodiment of the invention. The support frame 300 can include a top support portion 303, which can be configured to span a protrusion of an exhaust hood and secure the support frame 300 to restrict or prevent horizontal movement. The support frame 300 may include a lower edge 301 which may have a curved or bent end portion to provide a pivot point for a filter and a frame, described in more detail below. Alternatively, the bottom edge 301 may include a rigid hinged connection for coupling with the frame and the filter. The support frame 300 may include a rear portion 310 with open sides and drilled holes 306 formed therein. At or near where the posterior portion 310 meets the lower edge 301, the drain holes 302 can be formed in the support frame 300, to allow the captured fat to be drained and collected.
    [0092] [0092] Referring to Figure 29, which depicts a perspective view of the support frame 300, the perforated holes 306 formed in the rear portion 310 allow air to flow through the support frame 300. The unperforated portions 304 can be arranged along the rear portion 310, for example, in a ribbon-like manner, in which air is restricted in flow through the support frame 300. Due to the fact that the air flow is restricted in unperforated portions 304, an installed filter will be prevented from accumulating fat, so that the unperforated portions 304 can serve as a visual indicator for the useful life of the installed filter. For example, portions of the installed filter that correspond to the unperforated portions 304 may serve as a reference point for comparing the rest of the filter and determining the level of use of the filter. One or more retaining members 305, such as clamps, fasteners or the like, can be arranged on or near the front face of the top support portion 303. Retaining member 305 can be used to secure a filter block without frame and a wire cover to the rear portion 310, as described in more detail below.
    [0093] [0093] Figure 30 shows a side view of a support frame in an exhaust hood 320. Air flows in the exhaust hood, passing through the support frame 300 and the filter installed. As depicted in Figure 30, an alternative bottom clip portion 307 can be provided to connect with an exhaust hood bottom edge 320, while providing support for an installed filter. The lower clip portion 307 may be substantially L-shaped, extending from the bottom of the rear portion 310 of the support frame 300.
    [0094] [0094] Figure 31 depicts a side view of a support frame 300 with a frame 401 and a retaining member 305. A filter block without frame 400 can be attached between the support frame 300 and frame 401. The frame 401 may consist of metal and / or any suitable alternative material. The retaining member 305 can secure the frame 401 with the support frame 300, so that the bottom of the frame 401 is disposed within the lower edge 301 of the support frame 300.
    [0095] [0095] Figure 32 depicts a perspective view of a support frame 300 with frame 401 and retaining member 305. As shown in Figure 33, frame 401 can include a perimeter support 404 and a horizontal support 403. Vertical portions 402 can be provided and can have a thickness that blocks or prevents fat from accumulating in corresponding portions of a filter, which are arranged behind vertical portions 402. Then, in an alternative arrangement, vertical portions 402 can provide a visual indicator for the life of the installed filter. For example, portions of the installed filter that correspond to vertical portions 402 can serve as a reference point for comparing the rest of the filter and determining the level of use of the filter.
    [0096] [0096] Figure 34 depicts a front view of support frame 300 with a fiber filter block without frame 400 installed therein, according to an embodiment of the invention. As shown in Figure 34, a filter block portion 400 can extend beyond the open sides of the rear portion 310, so that when installed in an exhaust hood, a metal-to-metal seal can be formed between the blocks. filter. In addition, the filter block 400 is attached to the support frame 300, with the frame 401 retained with the retaining member 305.
    [0097] [0097] Figure 35 shows a side view of a support frame 300 with additional channels provided, according to an embodiment of the invention. In an alternative arrangement, the support frame 300 may include a top channel 405 provided at the rear of the support frame 300 and a lower channel 406 provided at the rear of the support frame 300, which corresponds to the top channel 405. Each one of the top channel 405 and the bottom channel 406 can be substantially U-shaped and configured to hold a deflector filter, for example, a metal deflector filter UL 1046 407, or similar, as depicted in Figure 36.
    [0098] [0098] Figures 37 to 41 show a set of filters that have a support frame 300, a filter block without frame 400, a deflector filter 407 and a frame 502 as a front cover that can pivot or be pivoted. Figure 37 shows a perspective view of a support frame 300 with a filter block 400 and the frame 502, according to an embodiment of the invention. The retaining members 305 can selectively secure and allow the frame 502 to move, which can pivot out and down or be pivoted to move in such a way. Figure 38 depicts a perspective view of the support frame 300 with a filter block 400 and the frame 502 secured with the retaining members 305 and the support frame 300 that supports a deflector filter 407.
    [0099] [0099] Figure 39 depicts a side view of a support frame 300 with a filter block 400 and a deflector filter 501 in an exhaust hood 520, which includes an expanded view of a support frame clamp 505, according with one embodiment of the invention. The support frame clamp 505 can be arranged at or near the bottom portion of the support frame 300 and can be substantially L-shaped, which extends from the support frame 300. The support frame clamp 505 can be configured to be coupled or attached to a lower flange 506 of exhaust hood 520. A pivot point or hinge 504 can be provided at or near the lower portion of the support frame 300 to allow the swinging movement of the frame 502.
    [0100] [00100] Figures 40 and 41 show a side view of a support frame 300 with a filter block without frame 400 and the deflector filter 501 with frame 502 in an open position and a closed position, respectively. The support frame 300 can include a top support portion 507 which can serve to couple the support frame 300 to an upper edge of the exhaust hood 520, while also retaining a top portion of the filter block 400 therein.
    [0101] [00101] Although the invention has been described together with various modalities, it will be understood by those of ordinary skill in the art that other variations and modifications of the preferred modalities described above can be produced without departing from the scope of the invention. Other modalities will be evident to those of ordinary skill in the art, from a consideration of the specification or practice of the invention disclosed in this document. The specification and the examples described are considered exemplary only, with the true scope and spirit of the invention indicated by the following claims.
    权利要求:
    Claims (10)
    [0001]
    Grease filter (16) for installation inside an opening (14) of an exhaust hood commercial kitchen equipment (12), where heat or flame can occur, in which the grease filter (16) is characterized by fact that you understand: an external support frame (24) that defines a path for air flow through it and that partially defines a portion downstream of the grease filter and a portion upstream of the grease filter (16); a deflector filter (22) disposed within the downstream portion of the grease filter (16), in which the deflector filter (22) is attached within the external support frame; and a first perforated insert (32b) is configured to move from a first position to a second position, where the first position allows installation of a filter pad (30) inside the grease filter and the second position does not allow installation of the pad filter (30) inside the grease filter (16); and in which; the upstream portion of the grease filter (16) comprises the first perforated insert (32b).
    [0002]
    Grease filter according to claim 1, characterized by the fact that the deflector filter comprises at least first and second rows of deflectors (18a, 18b), in which the first and second rows of deflectors are in staggered relation one in relation to the other.
    [0003]
    Grease filter according to claim 2, characterized by the fact that the deflector filter is 1.90 centimeters to 3.81 centimeters (0.75 to 1.5 inches) thick.
    [0004]
    Grease filter according to claim 1, characterized by the fact that the filter pad (30), when installed, is disposed within the upstream portion of the grease filter (16) adjacent to the removable perforated insert (32b).
    [0005]
    Grease filter according to claim 4, characterized by the fact that the filter block comprises fibers that comprise one or more of: wool fibers; viscose fibers based on wool; and synthetic fibers based on cellulose.
    [0006]
    Grease filter according to claim 1, characterized by the fact that one or more cables (62) are pivotally connected to the grease filter (16).
    [0007]
    Grease filter according to claim 2, characterized in that each of the first and second rows of deflectors (18a, 18b) includes a plurality of deflectors separated from each other to provide openings between them for flow of air through them.
    [0008]
    Grease filter according to claim 1, characterized in that it additionally comprises a second perforated insert disposed within the external support frame (24) and attached to one or more dividing tabs (34) of the external support frame (24 ).
    [0009]
    Grease filter according to claim 1, characterized in that the grease filter block comprises at least one surface configured to be removably coupled to the removable perforated insert.
    [0010]
    Grease filter according to claim 1, characterized by the fact that the first perforated insert (32b) is coupled to the external support frame (24) by means of an articulation mechanism (505).
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    AU2014277944A1|2016-01-21|
    US20170056809A1|2017-03-02|
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    CA3077183C|2021-03-02|
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    JP2019020117A|2019-02-07|
    EP3628933A1|2020-04-01|
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    BR112015031270A2|2017-07-25|
    US9555356B2|2017-01-31|
    CA2915500A1|2014-12-18|
    ES2767849T3|2020-06-18|
    WO2014201403A3|2015-08-13|
    HK1248795A1|2018-10-19|
    EP3008394A2|2016-04-20|
    EP3263994A1|2018-01-03|
    JP2016526480A|2016-09-05|
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    CA3077183A1|2014-12-18|
    PL3263994T3|2020-06-29|
    CA2915500C|2020-06-02|
    AU2019202623B2|2019-12-05|
    AU2014277944B2|2019-01-17|
    WO2014201403A2|2014-12-18|
    CN105408694A|2016-03-16|
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    法律状态:
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    2021-03-02| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-23| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/06/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201361835383P| true| 2013-06-14|2013-06-14|
    US61/835,383|2013-06-14|
    PCT/US2014/042381|WO2014201403A2|2013-06-14|2014-06-13|Filters, mounts and methods of mounting filters|
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