The present disclosure is related to heating, ventilation and air conditioning systems, also called HVAC systems. More specifically, the present disclosure is directed toward an air decontamination apparatus for HVAC systems.
Generally speaking, heating, ventilation, and air conditioning systems, or HVAC systems, is the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics and heat transfer. HVAC is an important part of residential structures such as single-family homes, apartment buildings, hotels and senior living facilities, medium to large industrial and office buildings such as skyscrapers and hospitals, vehicles such as cars, trains, airplanes, ships and submarines, and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.
Ventilating or ventilation (the “V” in HVAC) is the process of exchanging or replacing air in any space to provide high indoor air quality which involves temperature control, oxygen replenishment, and removal of moisture, odors, smoke, heat, dust, airborne bacteria, carbon dioxide, and other gases. Ventilation removes unpleasant smells and excessive moisture, introduces outside air, keeps interior building air circulating, and prevents stagnation of the interior air.
In recent times with the COVID-19 pandemic affecting the world, the need to control or decontaminate bacterial micro-organisms and viruses are of utmost importance, especially airborne bacterial micro-organisms and viruses. Although most HVAC systems include some form of filtration, most air borne bacterial micro-organisms and viruses are not affected or filtered with most common HVAC filtration systems. Therefore, a need clearly exists for a device, means and/or apparatus configured to aid in filtering or decontaminating the air or environment of a common HVAC system to help or aid in filtering, removing, killing, decontaminating, the like, etc. any airborne bacterial micro-organisms and viruses running through such HVAC system.
The instant disclosure may be designed to address at least certain aspects of the problems or needs discussed above by providing an air decontamination apparatus for HVAC systems.
The present disclosure may solve the aforementioned limitations of the currently available filtering or decontamination devices, apparatus, means and/or methods for filtering, removing, killing, decontaminating, the like, etc. any airborne bacterial micro-organisms and/or viruses in the air or environment of a common HVAC system, by providing an air decontamination apparatus. The air decontamination apparatus may be designed and/or configured for a common HVAC system. The air decontamination apparatus may generally include a plurality of venturi holes. The plurality of venturi holes may be configured to be positioned in the common HVAC system for forcing airflow in the common HVAC system through the plurality of venturi holes. Each of the plurality of venturi holes may include an antimicrobial coating. Wherein, the air decontamination apparatus is configured to remove, kill, filter, decontaminate, the like, etc. any bacteria and viruses in the airflow in the common HVAC system via the antimicrobial coating on each of the plurality of venturi holes.
One feature of the disclosed air decontamination apparatus for HVAC systems may be that the antimicrobial coating can be an electrostatic antimicrobial. The electrostatic antimicrobial coating may be applied to all surfaces of the air decontamination apparatus, including, but not limited to, all portions of each of the plurality of venturi holes.
In select embodiments of the disclosed air decontamination apparatus for HVAC systems, a venturi plate device may be included. The venturi plate device may include the plurality of venturi holes. Each of the plurality of venturi holes in the venturi plate device may include a wide inlet portion, a narrow middle portion, and a wide exhaust portion. Where, the wide inlet portion tapers into the narrow middle portion and the narrow middle portion tapers out to the wide exhaust portion. Wherein, the venturi plate device may be configured to be sealed between an inlet of the common HVAC system or an outlet of the common HVAC system for forcing the airflow of the common HVAC system through each of the plurality of venturi holes in the venturi plate device. As such, the venturi plate device may be sized and configured to be sealed to a duct of the common HVAC system in the inlet or the outlet of the common HVAC system. In select embodiments, the venturi plate device may be sealed to the duct of the common HVAC system in the inlet or the outlet of the common HVAC system via a foam seal around the venturi plate device.
Another feature of the disclosed air decontamination apparatus for HVAC systems may be the inclusion of a mounting bracket. The mounting bracket may be designed and/or configured to secure the venturi plate device to be sealed between the inlet of the common HVAC system or the outlet of the common HVAC system. In select embodiments, the mounting bracket may be configured to be mounted inside a duct of the common HVAC system for sealing the venturi plate device to the duct. In such select embodiments, the mounting bracket may include an upper mount, a lower mount, an adjustable rod bracket, and a mounting plate. The upper mount may have an upper foam pad. The upper foam pad can include an adhesive configured to secure the upper mount to a first portion of an inside of the duct. Likewise, the lower mount may have a lower foam pad. The lower foam pad can include the adhesive configured to secure the lower mount to a second portion of the inside of the duct. The second portion may be on an opposite side of the duct from the first portion. The adjustable rod bracket may be connected between the upper mount and the lower mount. The mounting plate may be connected to the adjustable rod bracket. The mounting plate may be configured to secure the venturi plate device to the adjustable rod bracket connected between the upper mount and the lower mount.
In select embodiments, the adjustable rod bracket can include a pair of inner rods and a pair of outer rods. The pair of inner rods may be connected to the upper mount, and the pair of outer rods may be connected to the lower mount (or vice versa). In this embodiment, the mounting plate may include an upper clamp plate and a lower clamp plate. The upper clamp plate can include four upper half-round cuts and a plurality of threaded holes (i.e., 4 threaded holes). The lower clamp plate can include four lower half-round cuts configured to mirror the four upper half-round cuts, and a plurality of counterbore holes (i.e., 4 counterbore holes) configured to align with the plurality of threaded holes in the upper clamp plate. A mounting alignment dowel may protrude from the lower clamp plate. A mounting stud may be secured to the lower clamp plate through a center hole in the lower clamp plate. Wherein, the mounting plate may be configured to be adjustably secured to the pair of inner rods and the pair of outer rods via the lower clamp plate being secured to the upper clamp plate and squeezed around the pair of inner rods and the pair of outer rods in between the four upper half-round cuts and the four lower half-round cuts via a plurality of screws connected between the plurality of threaded holes in the upper clamp plate and the plurality of counterbore holes in the lower clamp plate. In select embodiments, the mounting stud may be configured to connect the venturi plate device to the mounting plate via a threaded connection to a knob with a knurled outer diameter. In other select embodiments, the mounting alignment dowel may be configured to align the venturi plate device about the mounting plate via an alignment hole in the venturi plate device.
In select embodiments of the disclosed air decontamination apparatus for HVAC systems, the venturi plate device may include an inlet venturi plate and an exhaust venturi plate. The inlet venturi plate may include the wide inlet portion of each of the plurality of venturi holes and a narrow inlet portion of the narrow middle portion of each of the plurality of venturi holes. The exhaust venturi plate may have the wide exhaust portion of each of the plurality of venturi holes and a narrow exhaust portion of the narrow middle portion of each of the plurality of venturi holes. The narrow inlet portions of each of the narrow middle portions in the inlet venturi plate may be aligned and fluidly connected to the narrow exhaust portions of each of the narrow middle portions of the exhaust venturi plate. In select embodiments, a plate alignment dowel may be included. The plate alignment dowel may protrude from the inlet venturi plate and into an alignment hole of the exhaust venturi plate, or vice versa. The plate alignment dowel may be configured to align each of the plurality of narrow inlet portions in the inlet venturi plate with each of the narrow exhaust portions in the exhaust venturi plate for creating the plurality of venturi holes therebetween. In select embodiments, the inlet venturi plate and the exhaust venturi plate may be completely coated with the antimicrobial coating.
One feature of the disclosed air decontamination apparatus for HVAC systems may be the inclusion of an intermediate antimicrobial plate. The intermediate antimicrobial plate may be positioned between the inlet venturi plate and the exhaust venturi plate. The intermediate antimicrobial plate may include a plurality of bladed holes. The plurality of bladed holes may be configured to be positioned between the narrow inlet portions in the inlet venturi plate and the narrow exhaust portions in the exhaust venturi plate. In select embodiments, each of the plurality of bladed holes may include a plurality of turbulence blades. Each turbulence blade may include a sharp inlet edge angled toward a wider exit edge. Each turbulence blade of each of the plurality of bladed holes may include the antimicrobial coating. Wherein, the intermediate antimicrobial plate may be configured to swirl the airflow through the plurality of venturi holes. In select embodiments, the intermediate antimicrobial plate may further include a center through hole configured to receive a mounting stud. An intermediate alignment hole may also be included that is configured to receive the plate alignment dowel therethrough, thereby aligning the plurality of bladed holes between the narrow inlet portions in the inlet venturi plate and the narrow exhaust portions in the exhaust venturi plate. The entire intermediate antimicrobial plate may include the antimicrobial coating. In select embodiments, each of the plurality of bladed holes may include eight turbulence blades equally spaced for creating a fan design.
Another feature of the disclosed air decontamination apparatus for HVAC systems may be the inclusion of an antimicrobial liquid injection system. The antimicrobial liquid injection system may be configured to insert an antimicrobial liquid into the airflow moving through each of the venturi holes of the venturi plate device. In select embodiments, the antimicrobial liquid injection system may include a liquid intermediate plate. The liquid intermediate plate may be positioned between the inlet venturi plate and the exhaust venturi plate. In select embodiments, the intermediate antimicrobial plate may include a plurality of injection holes configured to be positioned between the narrow inlet portions in the inlet venturi plate and the narrow exhaust portions in the exhaust venturi plate. Each of the plurality of injection holes may include at least one fluid port. Wherein, the liquid intermediate plate may be configured to insert the antimicrobial liquid into the airflow through the plurality of venturi holes via the at least one fluid port in each of the plurality of injection holes. In select embodiments, the liquid intermediate plate may further include at least one hose port configured to communicate with a hollow interior of the liquid intermediate plate. The hollow interior of the liquid intermediate plate may fluidly connect each of the at least one hose ports with each of the fluid ports in each of the plurality of injection holes. In other select embodiments of the liquid intermediate plate, a center through hole may be included that may be configured to receive the mounting stud. In other select embodiments of the liquid intermediate plate, an intermediate alignment hole may be included that can be configured to receive the plate alignment dowel therethrough, thereby aligning the plurality of injection holes between the narrow inlet portions in the inlet venturi plate and the narrow exhaust portions in the exhaust venturi plate. In select embodiments, the entire liquid intermediate plate may include the antimicrobial coating. In select embodiments, each of the plurality of injection holes may include four fluid ports equally spaced around the injection hole, and each of the plurality of injection holes may be angled from the wide inlet portions toward the wide exhaust portions of the venturi holes.
In select embodiments of the disclosed air decontamination apparatus, the antimicrobial liquid injection system may further include a reservoir, a hose, and a reservoir mounting bracket. The reservoir may be configured to hold the antimicrobial liquid. The hose may be connected between the reservoir and the at least one hose port of the liquid intermediate plate. The reservoir mounting bracket may be configured to hold the reservoir and be mounted to the inside of a filter housing of the common HVAC system via adhesive strips. In select embodiments, the antimicrobial liquid injection system may further include a fluid level sensor in the reservoir. The fluid level sensor may be configured to sense the amount of the antimicrobial liquid inside of the reservoir. In select embodiments, a buzzer may also be included. The buzzer may be in communication with the fluid level sensor. The buzzer may be configured to emit an alarm sound when the fluid level sensor senses the amount of the antimicrobial liquid inside of the reservoir is below a set refill amount. In select embodiments of the antimicrobial liquid injection system, a battery may be included that can be configured to power the buzzer. The battery may be mounted on the reservoir via a battery holder. A positive connector wire may be connected between a positive side of the battery and the buzzer. A first negative connector wire may be connected between a negative side of the battery and the fluid level sensor. A second negative connector wire may be connected between the fluid level sensor and the buzzer. With this configuration, the fluid level sensor may be a normally closed fluid activated sensor configured to close when dry and open when wet. A low fluid level warning kit cover may be attached to a bottom of the reservoir configured to house and seal the battery, buzzer, and fluid level sensor.
One feature of the disclosed air decontamination apparatus for HVAC systems with the antimicrobial liquid injection system, may be that the antimicrobial liquid injection system may be configured to allow the antimicrobial liquid to be drawn out of each of the fluid ports in each of the injection holes via low pressure created by the airflow of the common HVAC system.
In another aspect, the instant disclosure embraces the disclosed air decontamination apparatus for HVAC system in any of the embodiments and/or combination of embodiments shown and/or described herein.
In another aspect, the instant disclosure embraces the disclosed air decontamination apparatus for HVAC system with the intermediate antimicrobial plate in any of the embodiments and/or combination of embodiments shown and/or described herein.
In another aspect, the instant disclosure embraces the disclosed air decontamination apparatus for HVAC system with the antimicrobial liquid injection system in any of the embodiments and/or combination of embodiments shown and/or described herein.
The foregoing illustrative summary, as well as other exemplary objectives and/or advantages of the disclosure, and the manner in which the same are accomplished, are further explained within the following detailed description and its accompanying drawings.
The present disclosure will be better understood by reading the Detailed Description with reference to the accompanying drawings, which are not necessarily drawn to scale, and in which like reference numerals denote similar structure and refer to like elements throughout, and in which:
It is to be noted that the drawings presented are intended solely for the purpose of illustration and that they are, therefore, neither desired nor intended to limit the disclosure to any or all of the exact details of construction shown, except insofar as they may be deemed essential to the claimed disclosure.
Referring now to
The present disclosure solves the aforementioned limitations of the currently available filtering or decontamination devices, apparatus, means and/or methods for filtering, removing, killing, decontaminating, the like, etc. any airborne bacterial micro-organisms and/or viruses in the air or environment of a common HVAC system, or the like, by providing air decontamination apparatus 10. Air decontamination apparatus 10 may be designed and/or configured for common HVAC system 12 (see
One feature of the disclosed air decontamination apparatus for HVAC systems may be that antimicrobial coating 18 can be electrostatic antimicrobial coating 20. Electrostatic antimicrobial coating 20 may be applied to all surfaces of air decontamination apparatus 10, including, but not limited to, all portions of each of the plurality of venturi holes 14.
Venturi plate device 22 may be included in select embodiments of air decontamination apparatus 10 for HVAC systems 12. See
Referring now specifically to
As shown in
As best shown in the disassembled exploded view of
Referring now specifically to the embodiments shown in
Referring now to
Reservoir 136 may be included in select embodiments of antimicrobial liquid injection system 122. See
One feature of antimicrobial liquid injection system 122 for air decontamination apparatus 10 for HVAC systems 12 may be that antimicrobial liquid injection system 122 may be configured to allow antimicrobial liquid 124 to be drawn out of each of the fluid ports 130 in each of the injection holes 128 via low pressure 174 created by airflow 16 of common HVAC system 12, or the like.
In another aspect, the instant disclosure embraces air decontamination apparatus 10 for HVAC system 12, or the like, in any of the embodiments and/or combination of embodiments shown and/or described herein.
In another aspect, the instant disclosure embraces air decontamination apparatus 10 for HVAC system 12, or the like, with intermediate antimicrobial plate 104 in any of the embodiments and/or combination of embodiments shown and/or described herein, like as shown in
In another aspect, the instant disclosure embraces air decontamination apparatus 10 for HVAC system 12 with antimicrobial liquid injection system 122 in any of the embodiments and/or combination of embodiments shown and/or described herein, like as shown in
In sum, the instant disclosure is designed to provide air decontamination apparatus 10 with a means of killing virus and bacterial micro-organisms in airflow 16 entering (or leaving) an HVAC system, including, but not limited thereto, common HVAC system 12 shown herein. Air decontamination apparatus 10 may provide two means of accomplishing this, either a chemical free antimicrobial coating method to kill bacteria and viruses (with or without intermediate antimicrobial plate 104), or the addition of antimicrobial liquid injection system 122 to the same system that uses the release of an antibacterial, virucide chemical (i.e., antimicrobial liquid 124) by means of a venturi, with no electronics required. This antimicrobial liquid injection system 122 may draw an inhalation safe chemical into the airstream (airflow 16) that can be introduced into the inlet air to be circulated throughout HVAC system 12. This system can be utilized either on inlet 30 of the air system, or the exit 32 of the air system into the room. For the non-chemical means, an electrostatically charged antimicrobial coating 20 may be applied to inlet venturi plate 92, intermediate antimicrobial plate 104, and exhaust venturi plate 96 that forces the air to travel over these coated surfaces. At the cellular level, this contact kills the single cell organism, preventing its introduction and recirculation into HVAC system 12, and thus preventing the spread of the bacteria or virus into other rooms connected to the system. For the addition of an inhalation approved antibacterial or virucide, intermediate antimicrobial plate 104 may be changed out (or added to) from venturi plate device 22 of air decontamination apparatus 10 with liquid intermediate plate 126. Liquid intermediate plate 126 may be positioned at the center or low-pressure area of each venturi hole 14. Liquid intermediate plate 126 may have small fluid ports 130 that release antimicrobial liquid 124, drawn by low pressure 174 area into the airstream. When the HVAC blower turns off and the airflow stops, the flow of antimicrobial liquid 124 may stop until the next time the HVAC system turns on.
One feature or advantage of the disclosed air decontamination apparatus 10 may be that it can easily install into the inlet side of an HVAC system by removing the standard air filter, installing mounting bracket 38 into the ductwork, installing the three plates, and then reinstalling the standard air filter. No modifications may be required to the ductwork or any of the original items on the HVAC system.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be that it can be removed easily, and may be completely transferrable to a new home, leaving no trace of its installation.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be that with use of intermediate antimicrobial plate 104, no chemical inhalation hazards are present, so there may be no risks or regulations from a health regulation or allergy standpoint, where the virus may be killed by contact with the antimicrobial electrostatic surfaces. No chemical agent may be released into the ductwork that will be inhaled by the occupants of the home or business. In addition, no electronics required for this configuration at all.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be, for embodiments with antimicrobial liquid injection system 122, these embodiments may allow the introduction of a specific chemical to target a specific virus or bacteria. Antimicrobial liquid 124 can be refilled or replaced without removal of any of the plates or system in the ductwork, still easily accessible in the plenum above the air filter. Low fluid level sensor 146 may activate buzzer 148 when reservoir 136 needs to be refilled.
The antimicrobial method in which the disclosed air decontamination apparatus 10 may kill the virus or bacteria is not as specific as a chemical agent to one virus or bacteria strain, thus making the antimicrobial coated method a more universal air purification for all types or airborne threats in the future.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be the inclusion of the two-piece venturi design with inlet venturi plate 92 and exhaust venturi plate 96. This two-piece design may allow the plurality of venturi holes 14 to be coated more uniformly from both sides when being electrostatically coated with the antimicrobial coating. As a result, a better coverage of the coating is possible. In addition, this two-piece venturi design may allow for easy cleaning and recoating, as the coating must remain free from dirt and debris to be effective. The location of air decontamination apparatus 10 directly above the standard inlet filter of the home, allows for the cleanest air to be run through the venturis, which may prolong the effectiveness of coating 18, like electrostatic coating 20, before needing to be cleaned.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be that system maintenance can easily be carried out. The plates of venturi plate device can be removed, cleaned and reinstalled completely tool-less, by removing capture knob 88 off mounting stud 80 and then sliding the plates off the mounting stud 80, leaving mounting bracket 38 completely installed, and allowing for complete removal of the plates for cleaning.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be to provide an adaptable design concept for all sizes of ductwork and air inlet sizes by changing the number of venturi holes 14. The venturi pattern can be made to fit any size of inlet ducting, including the size and shape of venturi plate device 22.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be that no electronic components maybe required in either system for the air to be purified. The only no batteries or wiring in the system may be for the low fluid level sensor 146. The system functions off the HVAC system airflow 16, whereby when airflow 16 stops, the treatment stops, even the flow of the chemical that is induced by the low pressure area 174 in the venturi holes 14 also stops when the air flow stops. No switches or connection may be required into the existing HVAC electrical system or thermostat.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be that it can use all the same base mounting components for both styles of airborne contaminant elimination, the difference for antimicrobial liquid injection system 122 may be the removal of intermediate antimicrobial plate 104 and replacing it with liquid intermediate plate 126 and all of the other components of liquid injection system 122 with reservoir 136. Inlet venturi plate 92 and exhaust venturi plate 96 may be completely interchangeable to use for either style of system.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be the use of a venturi design, incorporated with an electrostatic antimicrobial coating on the contact surfaces, that at a microscopic level, uses “swords” to cut or puncture the outer skin of the virus. The method of compressing the air flow into venturi holes 14, and then impacting that air on either the blade surface, or by treating the air with an additional antibacterial as it passes through the venturi holes 14 is the basis for air decontamination apparatus 10. As the blower motor turns on in HVAC system 12, low pressure area 174 is created in the ductwork, which causes air to flow through the filter and into the venturi holes 14. As the air enters the venturis, it is forced to speed up at the center of the venturis.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be that in the embodiments without the antimicrobial liquid injection system 122, the air stream is forced and focused into the blade area (intermediate antimicrobial plate 104) of the venturi holes 14. The additional surface area of the turbulence blades 108 and the angle they are at, forces the air stream over the antimicrobial surface, and also creates turbulence that pushes the air stream out against the sides of the wide exhaust portion 28 of the venturi holes 14. This pushing and focusing of the air on these surfaces helps to eliminate airborne micro bacteria and viruses, thereby purifying the air that is being distributed throughout the entire HVAC system. With this system there are no chemicals to inject into the air, just the air flow over the treated surfaces to kill the bacteria and virus. This method of purification does not require any modification to the existing HVAC system 12 or components of that system.
Another feature or advantage of the disclosed air decontamination apparatus 10 may be that in the embodiments with the antimicrobial liquid injection system 122, as the air flows into wide inlet portion 24 of inlet venturi plate 92, it speeds up through the restricted opening, this creates a low-pressure area in the center of the venturi holes 14. Liquid intermediate plate 126 is a hollow plate with fluid passages all around the port areas that are exposed to the low-pressure area created in the center of the venturi holes 14. This fluid area is connected to reservoir 136, by way of item hose 138. When blower motor starts on the HVAC system and low-pressure area 174 is created at the center of the venturi holes 14, antimicrobial fluid 124 may be drawn from reservoir 136 into the port area and injected into the air stream at this location. The plates for this kit are also coated with antimicrobial coating 18, like electrostatic antimicrobial coating 20. With the addition of the antibacterial liquid 124 to the air stream, and even more effective air purification may take place. The chemical agent, or antimicrobial liquid 124, can be changed out for different inhalation safe chemicals that can help to target specific bacteria and viruses. This air purification can lead to better overall air quality in the entire home or commercial space that is serviced by the HVAC unit 12. In addition, this method of purification does not require any modification to the existing HVAC system or components of that system.
In the specification and/or figures, typical embodiments of the disclosure have been disclosed. The present disclosure is not limited to such exemplary embodiments. The use of the term “and/or” includes any and all combinations of one or more of the associated listed items. The figures are schematic representations and so are not necessarily drawn to scale. Unless otherwise noted, specific terms have been used in a generic and descriptive sense and not for purposes of limitation.
The foregoing description and drawings comprise illustrative embodiments. Having thus described exemplary embodiments, it should be noted by those skilled in the art that the within disclosures are exemplary only, and that various other alternatives, adaptations, and modifications may be made within the scope of the present disclosure. Merely listing or numbering the steps of a method in a certain order does not constitute any limitation on the order of the steps of that method. Many modifications and other embodiments will come to mind to one skilled in the art to which this disclosure pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Although specific terms may be employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. Accordingly, the present disclosure is not limited to the specific embodiments illustrated herein but is limited only by the following claims.
This application claims benefit to U.S. Provisional Patent Application No. 63/045,300, filed on Jun. 29, 2020, which is incorporated by reference in its entirety.
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