WO2022266051A1

WO2022266051A1 - Handheld charged fluid dispensing system and method

Info

Publication number: WO2022266051A1
Application number: PCT/US2022/033365
Authority: WO
Inventors: Scott SICKMILLER
Original assignee: Rsc Bio Solutions Llc
Priority date: 2021-06-16
Filing date: 2022-06-14
Publication date: 2022-12-22

Abstract

A system and method are provided for remote dispensing of a liquid product from a container. The container can be on-board a dispensing system and/or can be interchanged to be remote and carried on the body of the end-user, providing a lighter weight, lower fatigue dispensing experience. An on-board pump and dispensing trigger switch allow the end-user to dispense an atomized aerosol of the liquid product and/or the end-user can select to dispense an atomized aerosol of the liquid product which carries a charge. An on¬ board interchangeable and rechargeable battery provides power for the dispensing system. Grounding connections and contact points are provided within the dispensing system to allow the end-user multiple options for ensuring a continuous connection to ground is established during dispensing. User feedback and control is enhanced during use resulting from the inclusion and automatic operation of an illumination feature which illuminates the area to be treated with the aerosol fluid contents dispensed from the system.

Description

HANDHELD CHARGED FLUID DISPENSING SYSTEM AND METHOD

CROSS-REFERENCE TO RELATED APPLICATION [0001] The present application claims the benefit of U.S. Patent Application No.

63/211,030 for a “Handheld Charged Fluid Dispensing System and Method” filed June 16, 2021, which is hereby incorporated by reference in its entirety.

FIELD OF THE INVENTION

[0002] The present invention embraces a handheld charged fluid dispensing system and method.

BACKGROUND

[0003] Fluid dispensing is a form of liquid product delivery across many different industries. Dispensing of the liquid product as an atomized aerosol is desired in many instances, across many different industries as well. Further, applying a charge to the atomized liquid product upon dispensing can offer advantages in some applications over normal or uncharged delivery of the liquid product.

SUMMARY

[0004] The following presents a simplified summary of one or more embodiments of the present invention, in order to provide a basic understanding of such embodiments. This summary is not an extensive overview of all contemplated embodiments and is intended to neither identify key or critical elements of all embodiments nor delineate the scope of any or all embodiments. This summary presents some concepts of one or more embodiments of the present invention in a simplified form as a prelude to the more detailed description that is presented later.

[0005] In one aspect, the present invention is directed to a system for dispensing charged fluid. The system may include a container for receiving fluid and a housing including a handle and an opening for receiving the container, where the opening and the container are configured to maintain a center of mass of the system as a level of fluid in the container changes. The system may include a nozzle positioned on an exterior surface of the housing and a pump positioned within the housing for generating a pressure to convey the fluid from the container through the nozzle. The system may include a voltage generator, where the voltage generator, when powered, generates an electric charge in the

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ATTY DKT. NO. 045625.000013 nozzle and a power source configured to provide power to the pump and provide power to the voltage generator.

[0006] In some embodiments, the handle may include a conductive grip insert.

[0007] In some embodiments, the handle may include a conductive grip insert and a trigger on an opposite side of the handle from the conductive grip insert.

[0008] In some embodiments, the nozzle may be configured to atomize the fluid.

[0009] In some embodiments, the nozzle may include an electrically conductive material.

[0010] In some embodiments, the nozzle may include an electrically conductive material, and the voltage generator may be electrically connected to electrically conductive material of the nozzle.

[0011] In some embodiments, the handle may include a conductive grip insert, and the voltage generator may be electrically connected to the conductive grip insert.

[0012] In some embodiments, the nozzle may include an electrically conductive material, the handle may include a conductive grip insert, and the voltage generator may be electrically connected to electrically conductive material of the nozzle and the conductive grip insert.

[0013] In some embodiments, the system may include a power selection switch, the handle may include a trigger, and the power source may be configured to provide power to the pump based on a position of the power selection switch and a position of the trigger. [0014] In some embodiments, the system may include a charge selection switch, the handle may include a trigger, and the power source may be configured to provide power to the voltage generator based on a position of the charge selection switch and a position of the trigger.

[0015] In some embodiments, the system may include a power selection switch and a charge selection switch, the handle may include a trigger, and the power source may be configured to provide power to the pump based on a position of the power selection switch and a position of the trigger and provide power to the voltage generator based on a position of the charge selection switch and a position of the trigger.

[0016] In some embodiments, the system may include a first conduit for conveying fluid from the container to the pump and a second conduit for conveying fluid from the pump to the nozzle, where the first conduit and the second conduit include only non- conductive materials.

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ATTY DKT. NO. 045625.000013 [0017] In some embodiments, the entire nozzle may be formed of an electrically conductive material.

[0018] In some embodiments, the container may include a bottom wall, a side wall abutting the bottom wall at an angle, and a fluid exit port on the side wall.

[0019] In some embodiments, the opening, when receiving the container, may be configured to position a bottom wall of the container at an angle of approximately 45 degrees with respect to a vertical axis defined by the housing.

[0020] In some embodiments, the container may include a bottom wall, a side wall abutting the bottom wall at an angle, and a fluid exit port on the side wall, and the opening, when receiving the container, may be configured to position a bottom wall of the container at an angle of approximately 45 degrees with respect to a vertical axis defined by the housing.

[0021] In some embodiments, the system may include a user worn reservoir for receiving fluid and a feed tube system positioned on the container, where the feed tube system is in fluid communication with the pump and the user worn reservoir. Additionally, or alternatively, the feed tube system may include a closure cap positioned on a top opening of the container, a container tube connector positioned on the closure cap for providing fluid communication through the closure cap, and a feed tube in fluid communication with the container tube connector and the user worn reservoir. In some embodiments, the feed tube system may include a closure valve on the user worn reservoir in fluid communication with the feed tube.

[0022] In another aspect, the present invention is directed to a system for dispensing charged fluid. The system may include a container for receiving fluid and a housing including an opening for receiving the container, where the opening and the container are configured to maintain a center of mass of the system as a level of fluid in the container changes. The housing may include a handle including a conductive grip insert and a trigger on an opposite side of the handle from the conductive grip insert. The system may include a nozzle positioned on an exterior surface of the housing, where the nozzle is configured to atomize the fluid, and where the nozzle includes an electrically conductive material. The system may include a pump positioned within the housing for generating a pressure to convey the fluid from the container through the nozzle. The system may include a voltage generator electrically connected to the electrically conductive material of the nozzle and the conductive grip insert, where the voltage generator, when powered, generates an electric charge in the electrically conductive material of the nozzle. The system may include a

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ATTY DKT. NO. 045625.000013 power source configured to provide power to the pump based on a position of a power selection switch and a position of the trigger and provide power to the voltage generator based on a position of a charge selection switch and a position of the trigger.

[0023] In some embodiments, the system may include a first conduit for conveying fluid from the container to the pump and a second conduit for conveying fluid from the pump to the nozzle, where the first conduit and the second conduit include only non- conductive materials.

[0024] In some embodiments, the entire nozzle may be formed of an electrically conductive material.

[0025] In some embodiments, the container may include a bottom wall, a side wall abutting the bottom wall at an angle, and a fluid exit port on the side wall, and the opening, when receiving the container, may be configured to position the bottom wall at an angle of approximately 45 degrees with respect to a vertical axis defined by the housing.

[0026] The features, functions, and advantages that have been discussed may be achieved independently in various embodiments of the present invention or may be combined with yet other embodiments, further details of which may be seen with reference to the following description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS [0027] Figure 1 illustrates an isometric view of a handheld charged fluid dispensing system, in accordance with an embodiment of the invention.

[0028] Figure 2 illustrates a right-side view of the handheld charged fluid dispensing system of Figure 1, in accordance with an embodiment of the invention.

[0029] Figure 3 illustrates a front view of the handheld charged fluid dispensing system of Figure 1, in accordance with an embodiment of the invention.

[0030] Figure 4 illustrates a left-side view of the handheld charged fluid dispensing system of Figure 1, in accordance with an embodiment of the invention.

[0031] Figure 5 illustrates a rear view of the handheld charged fluid dispensing system of Figure 1, in accordance with an embodiment of the invention.

[0032] Figure 6 illustrates a top view of the handheld charged fluid dispensing system of Figure 1, in accordance with an embodiment of the invention.

[0033] Figure 7 illustrates a bottom view of the handheld charged fluid dispensing system of Figure 1, in accordance with an embodiment of the invention.

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ATTY DKT. NO. 045625.000013 [0034] Figure 8 illustrates a right-side view of the handheld charged fluid dispensing system with a right-hand portion of a housing cover removed, in accordance with an embodiment of the invention.

[0035] Figure 9 illustrates an isometric view of an on-board reservoir tank of a handheld charged fluid dispensing system, in accordance with an embodiment of the invention.

[0036] Figure 10 illustrates a right-side section view of the on-board reservoir tank of the handheld charged fluid dispensing system, in accordance with an embodiment of the invention.

[0037] Figure 11 A illustrates a detailed view of the on-board reservoir tank closure and vent means from the section view in Figure 10, in accordance with an embodiment of the invention.

[0038] Figure 1 IB illustrates a detailed view of the on-board reservoir tank discharge nipple from the section view in Figure 10, in accordance with an embodiment of the invention.

[0039] Figure 12 illustrates an isometric view of a handheld charged fluid dispensing system, shown with a pouch vessel adapter in place, in accordance with an embodiment of the invention.

[0040] Figure 13 illustrates a right-side view of a handheld charged fluid dispensing system, shown with a pouch vessel adapter in place, in accordance with an embodiment of the invention.

[0041] Figure 14 illustrates a right-side view of a handheld charged fluid dispensing system, shown with a pouch vessel adapter in place and with a right-hand portion of a housing cover removed, in accordance with an embodiment of the invention.

[0042] Figure 15 illustrates a right-side view of a handheld charged fluid dispensing system, shown with a pouch vessel adapter in place and with a right-hand portion of a housing cover removed and with a pouch vessel adapter exploded away to illustrate the positioning during removal and installation, in accordance with an embodiment of the invention.

[0043] Figure 16 illustrates an isometric view of a pouch vessel adapter sub-assembly, in accordance with an embodiment of the invention.

[0044] Figure 17 illustrates a right-side section view of a pouch vessel adapter sub- assembly, in accordance with an embodiment of the invention.

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ATTY DKT. NO. 045625.000013 [0045] Figure 18 illustrates a perspective view of a satchel version front pack with an inverted pouch vessel as deployed on a mock end-user, in accordance with an embodiment of the invention.

[0046] Figure 19 illustrates a perspective view of a satchel version front pack with an inverted pouch vessel as deployed on a mock end-user, in an open position ready for pouch removal or installation, in accordance with an embodiment of the invention.

[0047] Figure 20 illustrates a detailed view of a portion of Figure 18, in accordance with an embodiment of the invention.

[0048] Figure 21 illustrates a detailed view of a portion of Figure 20, in accordance with an embodiment of the invention.

[0049] Figure 22 illustrates a detailed front view of a satchel version front pack with an inverted pouch vessel as deployed on a mock end-user, in accordance with an embodiment of the invention.

[0050] Figure 23 illustrates a detailed front view of a satchel version front pack with an inverted pouch vessel as deployed on a mock end-user, in an open position ready for pouch removal or installation, in accordance with an embodiment of the invention.

[0051] Figure 24 illustrates a right-side view of a handheld charged fluid dispensing system, shown with a feed tube cap sub-assembly from a satchel version front pack, in accordance with an embodiment of the invention.

[0052] Figure 25 illustrates a right-side center section view similar to Figure 24, of the handheld charged fluid dispensing system, shown with the feed tube cap sub-assembly from the satchel version front pack, in accordance with an embodiment of the invention.

[0053] Figure 26 illustrates a perspective view of a front pack assembly without a handheld charged fluid dispensing system, in accordance with an embodiment of the invention.

[0054] Figure 27 illustrates a right-hand side view of a front pack assembly without a handheld charged fluid dispensing system, in accordance with an embodiment of the invention.

[0055] Figure 28 illustrates a left-hand center section view of the front pack assembly as shown in Figure 27 without the handheld charged fluid dispensing system, in accordance with an embodiment of the invention.

[0056] Figure 29 illustrates a perspective view of a pouch reservoir vessel, in accordance with an embodiment of the invention.

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ATTY DKT. NO. 045625.000013 DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION [0057] Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all, embodiments of the invention are shown. Indeed, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Where possible, any terms expressed in the singular form herein are meant to also include the plural form and vice versa, unless explicitly stated otherwise. Also, as used herein, the term “a” and/or “an” shall mean “one or more,” even though the phrase “one or more” is also used herein. Furthermore, when it is said herein that something is “based on” something else, it may be based on one or more other things as well. In other words, unless expressly indicated otherwise, as used herein “based on” means “based at least in part on” or “based at least partially on.” Like numbers refer to like elements throughout. Where possible, any of the advantages, features, functions, devices, and/or operational aspects of any of the embodiments of the present invention described and/or contemplated herein may be included in any of the other embodiments of the present invention described and/or contemplated herein, and/or vice versa.

[0058] As noted, fluid dispensing is a form of liquid product delivery across many different industries. Dispensing of the liquid product as an atomized aerosol is desired in many instances, across many different industries as well. Further, applying a charge to the atomized liquid product upon dispensing can offer advantages in some applications over normal or uncharged delivery of the liquid product. Typically, visual feedback to the operator of the liquid dispenser may facilitate safe and efficient application of the liquid being dispensed as well as proper application to the surfaces being treated with the dispensed liquids.

[0059] For certain liquid products to be delivered as an atomized aerosol, within certain end-use applications, there is a need to deliver the atomized liquid remotely, in areas or locations without easy access to power sources, like grid supplied electricity or pressurized fluids, such as air or water. The ability to remotely dispense an atomized liquid onto a surface, without the need for connection to a pressurized fluid source or to grid supplied electrical energy is a requirement for many applications. In these remote applications, rechargeable batteries are utilized as a source of energy for creating the pressures required to atomize and dispense the liquid product. In addition, if a charge is to be applied to the

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ATTY DKT. NO. 045625.000013 dispensed atomized liquid product the rechargeable battery power source can provide the energy required to supply the charge to the dispensed atomized liquid product.

[0060] In these remote applications the end-user may be required to carry the dispenser and enough of the liquid product to accomplish the task, for example, a particular liquid product is to be used to treat surfaces within an aircraft, where all surfaces must be treated prior to exiting the aircraft to eliminate cross contamination from exiting and reentry to the aircraft. In this example, the task might normally require 6 to 8 liters of the liquid product to complete the task. The ability to rapidly remove an empty vessel of liquid product and install a full vessel of liquid product would allow the end-user to use a hand-held dispenser with a reasonable volume liquid vessel (e.g., a 1-liter vessel) that is rapidly changed. In this manner, the end-user holds a reasonable weight of dispenser device and liquid product during dispensing and is not subject to the need to wear a backpack with a rigid tank which is cumbersome and cannot be used in many enclosed spaces.

[0061] In these remote applications where more than a single 1-liter portion of liquid product may be required, the end-user may also require additional sources of power, rechargeable batteries, for example. Hence, the end-user would carry in the required volume of liquid product and the required number of rechargeable batteries required to dispense the liquid product.

[0062] For the efficient and safe application of the liquid product from the atomizing aerosol dispensing system, the user must have adequate visual feedback. This visual feedback allows the proper placement of the dispensed atomized liquid product and allows the user to self-regulate the portion (or volume) of atomized liquid product to apply. Proper visual feedback requires a good line of sight between the user and the surface to be treated and requires adequate illumination of the surface to be treated. In many end-use applications, ambient light is often not sufficient for good visual feedback and the end user must use some secondary or additional light source. The ability to hold the dispenser while dispensing the atomized aerosol liquid product and hold the auxiliary light source and position the dispensing nozzle in the proper location to apply the atomized liquid product will, in most instances, require both of the users’ hands, sometimes more.

[0063] Applying the charge to the dispensed atomized liquid product, on demand by the end-user, provides two important benefits in the dispensing application. First, each atomized particle charged will be charged just like every other atomized particle in every direction around any said charged particle. These provide a resulting repulsive force which attempts to repulse each particle from one another, which in turn inhibits the particles from

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ATTY DKT. NO. 045625.000013 coalescing into larger heavier particles, helping the dispensed aerosol stay airborne for a longer duration of time. This longer “hang time” allows for broader and more uniform surface coverage by the end-user of the dispensing system. Secondly, given that most surfaces to be treated are either in direct contact with ground or are grounded intentionally as part of a safety means for the surface, the charged particles will be attracted to the grounded surface to achieve a lower energy state. Hence, the aerosol airborne charged liquid product particles will be motivated to travel further and to seek out surfaces with an opposite polarity to coat or cover surfaces not in the direct path of the dispensed atomized liquid product, for example to travel around a corner when attracted/motivated by uncoated surfaces that are still grounded but not in contact with charged particles.

[0064] The handheld dispenser required for these remote end-use applications, where refilling of the liquid product may be necessary during use in the remote location, need to be durable and robust, similar to powered hand tools used in building and construction. However, for the intended non-institutional user market, total cost of use (first cost of dispenser and cost of use when dispensing the liquid product effectively) will be an important factor. Providing an end-user the means to deliver the liquid product as an atomized aerosol, or as a charged atomized aerosol on demand will allow efficient use of the valuable liquid product being dispensed.

[0065] Remote dispensing means may include handheld hand operated pump devices, backpack hand pump devices, hand pump tank devices, trigger squeezed bottle pumps, and/or the like. However, there exists a need for the ability to atomize the liquid product for enhanced surface area coverage, coupled with the ability to produce anatomized aerosol with a charge, which further enhances the effectiveness of the dispenser in covering large surfaces with the liquid product. A similar application using this charged particle technology is a method of applying paint to a surface called powder coating. In this method, the powder is dispensed using compressed air as the carrier fluid and the particles of powder are given a charge as they exit the dispensing air driven sprayer. The surfaces to be coated are connected to ground so they are the polar opposite of the charge applied, hence the charged powder particles are attracted to the surface of the grounded part to be coated. This method has been perfected to yield an extremely uniform and complete surface coating and its use is widespread among many end-use industries. Hence, there are many examples of dispensing using a method to atomize a liquid product and similarly to add or enhance a charge on or within the resultant dispensed materials. Some recent

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ATTY DKT. NO. 045625.000013 examples may be found within U.S. Patent No. 10,322,424 and U.S. Patent No. 10,589,298, each of which is hereby incorporated by reference in its entirety.

[0066] However, there remains a need for a handheld charged fluid dispensing system and method that can provide and allow the end-user operator to effectively dispense a liquid product to a surface in a remote location. Further, there remains a need for a handheld dispenser that will allow dispensing of the liquid product with or without a charge and will allow remote refilling of the liquid product or easy refill vessel changing during use in the remote location. In addition, features to allow better visualization of the surfaces to be treated is required for many, if not all, applications where the liquid product is to be dispensed and delivered to a surface for treatment.

[0067] In one aspect, the present invention embraces a handheld charged (e.g., electrostatic) fluid dispensing system and method which provide an end-user the ability to dispense a liquid product in a remote location with no connection to grid-supplied electrical power and/or to pressurized fluids, such as air or water. The system utilizes a rechargeable battery system, wherein the battery may be interchanged with another to allow use of the dispensing apparatus with one battery while another is being recharged. In this manner, should an end-user need to dispense enough liquid product to cover large areas without leaving and reentering the remote area, the end-user can simply carry in multiple batteries to accommodate the requirements for the particular task or project.

[0068] In some embodiments, multiple vessels, or containers of the liquid product, portioned for exact refill volume of the tank resident on the dispenser apparatus, can be carried into any remote location for use as needed to cover surfaces for treatment. These vessels or containers may be rigid, like bottles, or they could be flexible, like pouches. For example, the tank on the dispenser apparatus may be a rigid walled container to hold one liter of liquid product, to keep the total system weight when filled in a comfortable range for the end-user, such as less than 2 kilograms total system weight. The refillable tank may have a tethered closure assembly to allow rapid and precise refilling. Resident on the closure assembly may be a one-way valve with a low cracking pressure and/or a breather element (or frit) formed of a porous and/or hydrophobic material to allow atmospheric air to enter the tank as the pump means evacuates the tank during use. The one-way valve and/or breather element may ensure a leak free containment of the liquid product in the tank when in use, when being transported for use, and/or during storage. In some embodiments, the tank may be detachable from the dispenser apparatus and/or may not need to be detached for refilling during remote use. Additionally, or alternatively, the tank

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ATTY DKT. NO. 045625.000013 may never require detachment, depending upon the end-use application and the desires of the end-user. In some embodiments, the tank may be detached only when the end-user chooses to use an auxiliary tank system, where the tank may be a pre-filled pouch resident in a flexible shoulder carried sling bag with a small-bore hose attachment between the tank connection on the dispensing apparatus and the prefilled pouch neck connection. The neck connection may not require the one-way valve as described for the rigid dispenser mounted tank because the flexible pouch is acted upon by atmospheric pressure at all times and/or no venting may be required during evacuation of the liquid product by the pump means. In some embodiments, the auxiliary tank system provides the end-user the ability to remotely dispense many prefilled pouches of liquid product while reducing the fatigue of constantly holding the volume of liquid product within the dispensing apparatus. In addition, this auxiliary tank system as worn by the end-user provides a close to the body sling held pouch which allows freedom of movement by the end-user in remote locations, some of which may include tight quarters where a backpack style tank may be cumbersome or restrictive. [0069] In some embodiments, the present invention may include the means to pressurize the liquid product as required to flow the liquid through the nozzle element to cause atomization of the liquid for enhanced distribution of the resultant dispensed liquid product. This means may be a low voltage pump means powered by the interchangeable battery. Conduit for fluid communication between the tank and the pump and between the pump and the nozzle may be fabricated of non-conductive materials which perform under the pressures required and with the chemical compatibility for the liquid products to be utilized. Such conduits may be fabricated by molding methods which may include injection molding or extrusion, and may be formulated from polymers such as polyolefins, or similar polymers or co-polymers. In some embodiments, no portion of the conduit flowing the liquid product is conductive, including the wetted portion of the low voltage pump means.

[0070] In some embodiments, the atomizing nozzle of the instant invention may be a conductive element. For example, the restriction orifice required to create the high velocities and shear condition to effect atomization may be a high wear point and may erode rapidly if not made of a suitable material to withstand this wear phenomena. Furthermore, the conductive nozzle may be connected electrically to a current limited high voltage source powered by the interchangeable battery to affect a charge on the dispensed atomized particles, effectively adding one electron to each molecule.

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ATTY DKT. NO. 045625.000013 [0071] In some embodiments, power from the rechargeable and interchangeable battery may be directed through the power switch where the user can select to power the unit to an ON condition or to an OFF condition. Once powered to the ON condition, power flows to the control circuit which distributes power to the required elements as directed by the end user. A second switch is provided to allow the end user to select between dispensing liquid with a charge or without a charge. When the unit is powered to the ON condition and the end user selects to dispense with a charge, the control circuit may supply power to the current limited high voltage source. In some embodiments, activation of the pump means for dispensing liquid only occurs when the finger actuated trigger switch is depressed by the end user. A trigger locking button may be provided causing the end-user to be required to depress the trigger lock button to unlock the trigger prior to pulling the trigger to activate the dispensing device pump means and charging means, if selected. This trigger lock, along with the two-step switch sequence to allow charged liquid to be dispensed may be included as a means for preventing unintended use by untrained users.

[0072] In some embodiments, proper and effective use with a charged atomized aerosol output may require the system to be connected to ground. Grounding may be accomplished by providing a conductive component at the grip portion of the dispensing apparatus handle and instructing the end-user to ensure that there is contact between the flesh of the palm and the conductive component. The end-user may also be instructed to wear shoes that can connect the user to ground (e.g., no rubber soled shoes should be worn). Additionally, or alternatively, when the end-user must wear personal protective gloves and/or rubber soled shoes for the intended application or task, electrical ground connection sockets may be provided in two places which accept banana plugs found on wrist straps for grounding and shoe straps for grounding.

[0073] In some embodiments, illumination of the surfaces to be treated may be accomplished by an illumination source directly in-line and/or beneath the nozzle element. Such a placement may be selected to illuminate the surface and to back light the dispensed atomized aerosol liquid product. The illumination source may be a suitably sized LED component which is powered after the trigger switch and/or provides illumination after the trigger is depressed. Additionally, or alternatively, a partial depression of the trigger switch may activate the illumination source so the end-user may use the illumination source without dispensing the liquid product.

[0074] In some embodiments, the physical arrangement of the dispenser apparatus housing, including the location of the battery component and the rigid tank element, may

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ATTY DKT. NO. 045625.000013 affect the weight distribution and balance of the apparatus in the hand of the end-user. The center of mass of the assembly may be arranged to be as close to the grip center as possible while leaving a clean sightline for the end-user during dispensing use. Features to allow the end-user to determine the volume of liquid product remaining in the on-board tank may be included and/or accessible from either side on the apparatus. The power switch, the dispense with/without charge switch, the trigger, and/or the trigger lock may be positioned in a pre-determined ergonomic arrangement to allow single handed use during dispensing. Furthermore, features to allow a carry strap to be affixed to the dispensing apparatus may be located around the center of mass to allow the unit to hang from the carry strap in a balanced and upright position (e.g., as a comfort for the end-user during transport of the dispensing apparatus to the remote location to be treated with the liquid product).

[0075] In some embodiments, the system, when used with a pre-determined liquid product, may be utilized as part of a method to accomplish a task. For example, given the system as described above and given a liquid product for coating a surface in preparation for rendering the surface clean of any biologically active materials, the method for removing the active biologic substances may include filling the dispensing system with the formulated liquid product and then using the dispenser system to distribute the atomized and/or charged liquid product onto the surfaces to be treated as illuminated by the dispensing system.

[0076] Figures 1-7 illustrate an exemplary embodiment of a handheld charged fluid dispensing system 10 shown ready for use with on-board liquid product container 50 in sealed position for fluid communication with the pressurization pump means 160. The ruggedized housing 20 is configured to contain the functional elements required for operation of the system, including creating a holding pocket for the on-board liquid product container 50. Exterior functional features shown include the handle 60 with an integrated conductive grip insert 70, electrically connected to ground sockets 140, which are electrically connected back to system ground. In some embodiments, the handheld charged fluid dispensing system 10 may not include the ground sockets 140. Ruggedized housing 20 has an opening 24 for insertion of the interchangeable rechargeable battery 150 and finger recesses 22 to allow the user to grip the housing during removal of the battery 150. Ruggedized housing 20 also includes features for location and securing the illumination source 40, the dispensing nozzle 30, and descriptive labels, 130 and 132. Additionally, or alternatively, features are provided on ruggedized housing 20 for insertion of split-ring fasteners 120 used to connect a carry strap accessory if desired by the end user. In some

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ATTY DKT. NO. 045625.000013 embodiments, the handheld charged fluid dispensing system 10 may not include the split ring fasteners 120 and/or the features on ruggedized housing 20 for insertion of split-ring fasteners 120. Descriptive labeling, which may contain instructions or warnings, are included as upper label 130 and lower label 132. Upper label 130 contains a transparent portion 134 which aligns with features in housing 20 to allow the end user to see the liquid volume level in the on-board liquid container 50. Fastening rings 120 are disposed upon the housing 20 in such a manner to allow a removable carry strap (not shown) to be affixed and to provide support locations which are approximately spaced to allow the center of gravity of the device to hang evenly when used.

[0077] Referring now to Figure 8, shown with one side of ruggedized housing 20 removed to illustrate the interior placement of the active components, the positioning of the pump means 160 locates the intake port 162 just below the liquid exit port 52 (See Figure 9) of on-board liquid product container 50, such that a short piece of flexible tubing (not shown), clamped with tubing clamps (not shown) at each end can be utilized to make fluidic connection and communication between the two. Likewise, the pressurized exit port 164 of pump means 160 is located to provide an easy connection to the dispensing nozzle 30 with a length of flexible tubing (not shown), sized appropriately for the intended pressure range expected, and clamped with tubing clamps (not shown) at each end. Trigger 90 is used to close the dispensing demand switch 92 to provide on-demand dispensing when depressed. Power switch 110 selectively provides power to the unit, or ceases to provide power at the direction of the user. Charged output selection switch 112 is used to select dispensing with or without a charge, and will reset to dispense without a charge when the main power switch 110 is set to the OFF condition. Power from the interchangeable rechargeable battery 150, will flow first to power selection switch 110, then to the controller circuit 180, where input from charge selection switch 112 and/or input from trigger operated dispensing demand switch 92, are processed for system operation. In operation, with power switch 110 in the ON condition, and with trigger 90 activating dispensing demand switch 92, power will be supplied to the pump means 160 resulting in fluid flow from the on-board liquid container 50, through pump means 160, through nozzle 30, exiting the nozzle 30 orifice, becoming dispensed as an atomized spray into the atmosphere beyond nozzle 30 and onto the target surface to be treated. When the user selects to dispense the product with a charge, the user will depress the charge selection switch 112, after powering the unit to the ON condition. Once the charge selection switch is activated to the ON condition, the control circuit 180 will supply power to the voltage

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ATTY DKT. NO. 045625.000013 generator 170 when the dispensing demand switch is activated by trigger 90. The illumination source 40, comprised of an LED is provided power to illuminate from the control circuit 180 any time dispensing demand switch 92 is activated by trigger 90.

[0078] Once the end-user determines that the surfaces to be treated are adequately covered, the trigger switch 90 is released, deactivating the dispensing demand switch 92 causing the control circuit 180 to cease power flow to the pump means 160 and to the voltage generator 170 if it was selected and in the ON condition. Control circuit 180 is configured with programming which would allow power to continue to flow to the illumination source 40 for a predetermine dwell time after trigger 90 is released allowing the end-user some time with illumination present to evaluate the surfaces which have been treated without liquid product being dispensed. Ground connection 140 is connected to the control circuit 180 ground and to the conductive grip insert 70 so that an electrical connection to ground can be established either directly through the end-user’s hand and shoe, through the use of a wrist strap accessory (not shown) plugged into ground connection 140 and the end user’s shoe, and/or through the use of a shoe strap connected to ground connection 140. This allows the end-user to select the ground method depending upon the particular application and surfaces to be treated on a day-to-day basis. As noted, however, the handheld charged fluid dispensing system 10 may not include the ground sockets/connections 140 in some embodiments, and the electrical connection to ground can be established through the conductive grip insert 70 and the end-user’s hand.

[0079] Referring to Figures 9-11, the on-board liquid product container 50 and closure assembly 80 are shown in greater detail. The on-board liquid product container 50 is filled with a ready to dispense liquid formulation through the top opening 54 which can be closed and re-opened as required with closure assembly 80 utilizing a 38 mm container closure system, closure assembly 80 comprising rotatable cap 81, tethered to the neck portion of on-board liquid product container 50 below top opening 54 with tether 83 inseparably affixed to cap 81, with closure fastener 88, capturing tether 83 to the top center portion of cap 81. The closure strainer liner 82 provides a rigid sealing surface between the breathing element 84 and the container 50. Additionally, or alternatively, the external diameter of the closure strainer liner 82 which telescopes into the container 50 threaded neck portion adds rigid diametral stability supporting the threads as the cap 81 is tightened to seal and contain the liquid contents. Breathing element 84 is manufactured from a hydrophobic material with a porous consistence allowing fluidic gases to pass through but stopping liquids from passing under normal differential pressures and is adapted to be retained with the cap 81

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ATTY DKT. NO. 045625.000013 when removed for refilling operations. Any means to allow the interior of container 50 to be vented, allowing atmospheric air to enter, but preventing the liquid contents from escaping can be used to perform this breather functionality. Any low cracking pressure one-way valve, such as a spring-loaded ball, an umbrella style valve, a duckbill style valve, and/or the like may be used to allow atmospheric air to enter the on-board liquid product container 50 as the pump means 160 evacuates the liquid product from the enclosed volume. Atmospheric air can enter the closure assembly 80 through the radial gap formed between the opening in cap 81 and the retaining stem on closure fastener 88.

[0080] Upon activation of the dispensing demand switch 92 by trigger 90, the pump means 160 may pull the liquid product through the exit port 52 (e.g., an exit nipple and/or the like) of container 50, pressurize the liquid product to motivate the liquid product through the associated tubing manifold and to be dispensed through the dispensing nozzle 30. Exit port 52 as formed upon on-board liquid product container 50 is configured with seal glands 56 to allow the use of an O-ring to provide a sealed removable connection to the tank receiving connector 166 (See Figure 8) captured and positioned within ruggedized housing 20, allowing the end-user to disengage and reengage the on-board liquid product container 50 from the system as needed in a sealed manner.

[0081] To provide secure containment of the liquid product to be dispensed within container 50 during use and transportation, a low cracking pressure feed valve 58 is inserted within the container exit port 52. This feed valve 58 will open when differential pressure is applied, as the pump means 160 lowers the pressure on the downstream side of the feed valve 58 and will close to prevent unwanted flow when there is no pressure differential, when the pump means 160 is not activated. This prevents liquid flow through the system during transportation of the unit to the remote location where surface treatment is required and/or if the unit is tipped onto its side or dropped (e.g., accidentally).

[0082] As will be appreciated by one of ordinary skill in the art, Figures 1-29 may not illustrate elements for assembling and holding components in position. For example, the handheld charged fluid dispensing system 10 may include fasteners to hold the ruggedized housing 20 together, extruded tubing and tubing clamps for connection between the pump means 160 and the dispensing nozzle 30, features for affixing the control circuit 180, features for affixing and/or for isolating the high voltage generator 170, features for affixing the power selection switch 110 and/or charge selection switch 112, features for affixing the pump means 160, features to affix and/or limit rotation of the trigger 90,

Page 16 of 27

ATTY DKT. NO. 045625.000013 features to affix and/or control the movement of trigger lock 100, features to affix and/or protect all routed electrical lines within the ruggedized housing, and/or the like.

[0083] Referring now to Figures 12-17, there is shown an exemplary embodiment of a handheld charged fluid dispensing system 300 shown ready for use with the pouch vessel adapter assembly 200 in sealed position for fluid communication with the pressurization pump means 160. In some embodiments, the handheld charged fluid dispensing system 300 may be similar to and/or have similar components as the handheld charged fluid dispensing system 10. In some applications where remote use of the dispenser system may be required, the end-user may need to dispense multiple container volumes of the liquid product to adequately cover the surface to be treated. This kind of application could cause the end-user to be dispensing for an extended time. Holding the dispensing system with a full liter within the container through multiple refills, over an extended period of time can fatigue the end-user. Hence, an over the shoulder sling apparatus, configured to accept a pouch of prepared ready to dispense liquid product in a predetermine volume, for example two to four liters, may be provided as a means to relieve the fatigue in these extended dispensing time applications. The sling apparatus may hold multiple prefilled prepared ready to dispense pouches and the end user may disconnect from one pouch when empty and connect to the next, without any time wasted with a refilling operation. For the purposes of this disclosure this sling apparatus and the anticipated pouch vessels are not illustrated.

[0084] The pouch vessel adapter assembly 200 may include a rigid clamshell formed housing 210 to fit with the dispenser ruggedized housing 20 and provide the features to permit correct alignment for the sealed connection at outlet 230 to the tank receiving connector 166, the sealing including the use of an O-ring, allowing the end-user to disengage and reengage the pouch vessel adapter 200 from the handheld dispensing system 300 as needed in a sealed manner. In some embodiments, exterior features present on the on-board liquid container 50 which are used to align and position the on-board liquid container within the housing 20 may be included on the exterior of rigid clamshell 210, such that the insertion and removal of either is a similar operation for the end-user.

[0085] Further, outlet 230 may be part of a rigid tubular barbed connector for sealed connection to the flexible hose 220 in fluid communication with the end-user worn pouch vessel (not shown) containing the liquid product to be dispensed by the system. Grip feature 250 is formed within rigid clamshell housing 210 such that when assembled a two- sided grip feature is provided to assist the end-user with installation and removal of the

Page 17 of 27

ATTY DKT. NO. 045625.000013 pouch adapter to/from the dispensing system. In some embodiments, the feed valve 58 disposed within the exit nipple 52 of container 50 may not be required with such a liquid reservoir pouch system as worn on the end-user with the reservoir volume being located level with and/or below the pump means 160 elevation during use. Additionally, or alternatively, if in some applications the elevation of the reservoir pouch is to be some distance higher in elevation than the pump means 160, the feed valve 58 can be implemented within the outlet 230 terminal bore.

[0086] Once installed, pouch vessel adapter assembly 200 might remain installed or it may be removed and replaced with on-board liquid product container 50 depending upon the immediate need of the end-user. Accordingly, the system provides the end-user multiple configurations with which to accomplish a dispensing task, depending upon the nature and/or complexity of the task to be addressed.

[0087] Referring now to Figures 18-23, there is shown an exemplary embodiment of a handheld charged fluid dispensing system adapted with a user worn pouch reservoir, illustrated in this embodiment as a pouch reservoir front pack. This user worn dispensing system 400 includes the handheld charged fluid dispensing system 10 and the front-pack pouch reservoir system 500, adapted to allow the pouch reservoir vessel 510 to be inserted into the pouch receiving pocket 520 from a top direction allowing the end-user clear visibility when removing an empty or inserting a full pouch reservoir vessel 510, as shown in Figures 19, 21, and 23. The end-user places pouch receiving pocket 520 in position for use by inverting the pouch receiving pocket 520 and securing to the user worn front-pack 530, thus capturing and inverting reservoir vessel 510 placing the closure and feed tube connection in position to allow gravity flow of the liquid within the pouch reservoir vessel 510, for example, as illustrated in Figures 18, 20, and 22. Valve access opening 534, situated on the hinge area 536 of the user worn front-pack 530 allows the pouch closure valve and pouch neck to extend downward and through the valve access opening 534 when the pouch is in the inverted position allowing easy access to the pouch closure valve 592 during use of the system. Feed tube system 580 lies within the folded over hinge area 536 between the pouch receiver pocket 520 and the user worn front-pack 530 to protect and conceal the feed tube 590 during use.

[0088] Referring now to Figures 24 and 25, the handheld charged fluid dispensing system 10 is shown as adapted for use with user worn dispensing system 400. Closure assembly 80, used with container 50 is removed by the end-user and replaced by the feed tube system 580 which includes the closure cap 582, the container tube connector 584, the

Page 18 of 27

ATTY DKT. NO. 045625.000013 feed tube 590, and the pouch closure valve 592. Because the closure assembly 80 is configured with a tether 83, the closure assembly may remain attached to the container 50 at the user’s discretion. The strainer 82 may be removed from container 50 prior to insertion of feed tube system 580, and breathing element 84 may be retained within cap 81. During use when configured as user worn dispensing system 400, the breathing element 84 may no longer be required as the pouch reservoir vessel 510 is fabricated of a thin flexible film material which allows atmospheric pressure to act directly on the liquid contained within. Additionally, or alternatively, the inverted positioning of the pouch reservoir vessel allows for free liquid flow as directed during use by the suction applied by pump means 160 of the handheld charged fluid dispensing system 10. As illustrated in Figure 25, the container tube connector 584 may include a tube connection barbed fitting 586 and inlet conduit 588. In use, the inlet end of inlet conduit 588 may be immersed with the liquid within container 50 such that as the pump means 160 removes liquid from container 50, the volume of space above the liquid within container 50 will expand, thereby lowering the pressure of that volume. At some point, the pressure differential between this volume and atmosphere outside the pouch reservoir vessel will result in liquid flow through the feed tube system 580 to replenish the liquid removed from container 50. Air entrapped within feed tube system 580 can be discharged prior to use by simply applying an external squeezing force to the pouch reservoir vessel during the installation process. Likewise, at the cessation of use, the feed tube system 580 may be drained of its liquid contents. The pouch closure valve 592 is adapted to allow venting of the feed tube system 580 upon command by the end user via a push to vent operation, which utilizes a valve that is biased to hold the valve in the closed non-vented position until acted upon by the user to defeat the bias and place the valve into the open venting position. Upon nearing the completion of dispensing the liquid materials, the end user will put the system ready for cessation by first unlatching the pouch reservoir pocket 520 from user worn front-pack 530 and rotating it downward, thereby inverting the pouch reservoir vessel 510 such that the pouch closure valve is now at the top most elevation of the pouch reservoir vessel 510 within the pouch reservoir pocket 520, then depressing the pouch closure valve 592 to open the vent, then depressing trigger 90 to activate pump means 160 to dispense liquid product. The open vent at the pouch closure valve 592 will allow liquid flow from within the feed tube system 580 until all liquid is utilized. Remaining liquid product within container 50 can be dispensed while the vent is held in the open condition, allowing atmospheric air to enter behind the ever-reducing volume of liquid product within the container 50. Additionally,

Page 19 of 27

ATTY DKT. NO. 045625.000013 or alternatively, if the dispensing operations cease and no further dispensing is required the user can invert the pouch reservoir vessel 510, loosen the closure cap 582 from its sealed condition to container 50, then elevate pouch reservoir vessel above the container 50 and depress the pouch closure valve to open the vent, thereby allowing gravity flow of the liquid product within into container 50. In some embodiments, the biased push-to-vent valve may be replaced with a two-position valve operable by the end user to remain in whichever state is selected by the end user, either open venting or closed non-venting. [0089] Referring now to Figures 26-29, the front-pack pouch reservoir system 500 is illustrated in further detail. The front-pack structure is shown for reference and without straps allowing the pack to be adjusted to fit users from small to large. These backpack and front pack shoulder straps and chest strap adjustment and snap mechanisms may be used in many different variations to provide adequate secure and comfortable mounting of the pack device to the user. In some embodiments, while shown and illustrated as a front-pack, the pouch reservoir pocket 520 could be integrated into a backpack and/or into a cross-chest sling style pack. Additionally, or alternatively, in such user worn mounting styles, the inverted pouch placement may be envisioned without departing from the spirit and scope of the exemplary embodiment. In some embodiments, a non-inverted pouch may be incorporated within the system, for example, with a tube to be inserted into the pouch closure valve 592, in fluidic communication with the feed tube 590, such that the new tube component can reach the now bottom of the non-inverted pouch to provide the fluid exit path for the liquid contents of the non-inverted pouch as flow is commanded by the pump means 160 as demanded by the end user through activation of the dispenser upon depression of trigger 90.

[0090] Referring to Figures 26 and 27, the feed tube system 580 is shown as mounted and adapted for left-handed use by the user. The tube 590 is secured in at least one repositionable hook and loop fastener 532 affixed to front-pack 530. Similarly, mirror image repositionable hook and loop fastener 532’ is affixed to front pack 530 and allow the end-user to install the feed tube system 580 for right-handed use by the end-user. Figure 28 illustrates the side section view showing the pouch reservoir vessel 510 in the in-use inverted state with liquid product shown within the pouch receiver pocket 520 with the neck and pouch closure valve 592 extended beyond the fold over area 536 between the pouch receiver pocket 520 and the user worn front-pack 530 through valve access opening 534.

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ATTY DKT. NO. 045625.000013 [0091] In some embodiments, the flexible pouch and the various styles of user worn pouch holding structures provide the user with the ability to carry far more liquid product and relieve the fatigue and stress on the hand and arm holding the dispensing apparatus. Additionally, or alternatively, the low profile of the pouch and the pouch holding structures allow the end user to maneuver during dispensing operations and enter or exit spaces where larger rigid backpack style spraying devices would not even fit, such as automotive interiors, school bus interiors, commercial transport bus interiors, passenger train interiors, aircraft interiors, and/or the like.

[0092] Although many embodiments of the present invention have just been described above, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Also, it will be understood that, where possible, any of the advantages, features, functions, devices, and/or operational aspects of any of the embodiments of the present invention described and/or contemplated herein may be included in any of the other embodiments of the present invention described and/or contemplated herein, and/or vice versa. In addition, where possible, any terms expressed in the singular form herein are meant to also include the plural form and/or vice versa, unless explicitly stated otherwise. Accordingly, the terms “a” and/or “an” shall mean “one or more,” even though the phrase “one or more” is also used herein. Like numbers refer to like elements throughout.

[0093] While certain exemplary embodiments have been described and shown in the accompanying drawings, it is to be understood that such embodiments are merely illustrative of and not restrictive on the broad invention, and that this invention not be limited to the specific constructions and arrangements shown and described, since various other changes, combinations, omissions, modifications and substitutions, in addition to those set forth in the above paragraphs, are possible. Those skilled in the art will appreciate that various adaptations, modifications, and combinations of the just described embodiments may be configured without departing from the scope and spirit of the invention. Therefore, it is to be understood that the invention may be practiced other than as specifically described herein.

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ATTY DKT. NO. 045625.000013

Claims

WHAT IS CLAIMED IS:

1. A system for dispensing charged fluid, comprising: a container for receiving fluid; a housing comprising a handle and an opening for receiving the container, wherein the opening and the container are configured to maintain a center of mass of the system as a level of fluid in the container changes; a nozzle positioned on an exterior surface of the housing; a pump positioned within the housing for generating a pressure to convey the fluid from the container through the nozzle; a voltage generator, wherein the voltage generator, when powered, generates an electric charge in the nozzle; and a power source configured to provide power to the pump and provide power to the voltage generator.

2. The system of claim 1, wherein the handle comprises a conductive grip insert.

3. The system of claim 1, wherein the handle comprises a conductive grip insert and a trigger on an opposite side of the handle from the conductive grip insert.

4. The system of claim 1, wherein the nozzle is configured to atomize the fluid.

5. The system of claim 1, wherein the nozzle comprises an electrically conductive material.

6. The system of claim 1, wherein the nozzle comprises an electrically conductive material, and wherein the voltage generator is electrically connected to electrically conductive material of the nozzle.

7. The system of claim 1, wherein the handle comprises a conductive grip insert, and wherein the voltage generator is electrically connected to the conductive grip insert.

8. The system of claim 1, wherein the nozzle comprises an electrically conductive material, wherein the handle comprises a conductive grip insert, and wherein the voltage

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ATTY DKT. NO. 045625.000013 generator is electrically connected to electrically conductive material of the nozzle and the conductive grip insert.

9. The system of claim 1, comprising a power selection switch, wherein the handle comprises a trigger, and wherein the power source is configured to provide power to the pump based on a position of the power selection switch and a position of the trigger.

10. The system of claim 1, comprising a charge selection switch, wherein the handle comprises a trigger, and wherein the power source is configured to provide power to the voltage generator based on a position of the charge selection switch and a position of the trigger.

11. The system of claim 1, comprising a power selection switch and a charge selection switch, wherein the handle comprises a trigger, and wherein the power source is configured to: provide power to the pump based on a position of the power selection switch and a position of the trigger; and provide power to the voltage generator based on a position of the charge selection switch and a position of the trigger.

12. The system of claim 1, comprising a first conduit for conveying fluid from the container to the pump and a second conduit for conveying fluid from the pump to the nozzle, wherein the first conduit and the second conduit comprise only non-conductive materials.

13. The system of claim 1, wherein the entire nozzle is formed of an electrically conductive material.

14. The system of claim 1, wherein the container comprises a bottom wall, a side wall abutting the bottom wall at an angle, and a fluid exit port on the side wall.

15. The system of claim 1, wherein the opening, when receiving the container, is configured to position a bottom wall of the container at an angle of approximately 45 degrees with respect to a vertical axis defined by the housing.

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ATTY DKT. NO. 045625.000013

16. The system of claim 1, wherein: the container comprises: a bottom wall; a side wall abutting the bottom wall at an angle; and a fluid exit port on the side wall; and the opening, when receiving the container, is configured to position the bottom wall at an angle of approximately 45 degrees with respect to a vertical axis defined by the housing.

17. The system of claim 1, comprising: a user worn reservoir for receiving fluid; and an adapter assembly configured to be positioned within the opening of the housing, wherein the adapter assembly is in fluid communication with the pump and the user worn reservoir.

18. The system of claim 1, comprising: a user worn reservoir for receiving fluid; and a feed tube system positioned on the container, wherein the feed tube system is in fluid communication with the pump and the user worn reservoir.

19. The system of claim 18, wherein the feed tube system comprises: a closure cap positioned on a top opening of the container; a container tube connector positioned on the closure cap for providing fluid communication through the closure cap; and a feed tube in fluid communication with the container tube connector and the user worn reservoir.

20. The system of claim 19, wherein the feed tube system comprises a closure valve on the user worn reservoir in fluid communication with the feed tube.

21. A system for dispensing charged fluid, comprising: a container for receiving fluid; a housing comprising:

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ATTY DKT. NO. 045625.000013 an opening for receiving the container, wherein the opening and the container are configured to maintain a center of mass of the system as a level of fluid in the container changes; and a handle comprising: a conductive grip insert; and a trigger on an opposite side of the handle from the conductive grip insert; a nozzle positioned on an exterior surface of the housing, wherein the nozzle is configured to atomize the fluid, and wherein the nozzle comprises an electrically conductive material; a pump positioned within the housing for generating a pressure to convey the fluid from the container through the nozzle; a voltage generator electrically connected to the electrically conductive material of the nozzle and the conductive grip insert, wherein the voltage generator, when powered, generates an electric charge in the electrically conductive material of the nozzle; and a power source configured to: provide power to the pump based on a position of a power selection switch and a position of the trigger; and provide power to the voltage generator based on a position of a charge selection switch and a position of the trigger.

22. The system of claim 21, comprising a first conduit for conveying fluid from the container to the pump and a second conduit for conveying fluid from the pump to the nozzle, wherein the first conduit and the second conduit comprise only non-conductive materials.

23. The system of claim 21, wherein the entire nozzle is formed of an electrically conductive material.

24. The system of claim 21, wherein: the container comprises: a bottom wall; a side wall abutting the bottom wall at an angle; and a fluid exit port on the side wall; and

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ATTY DKT. NO. 045625.000013 the opening, when receiving the container, is configured to position the bottom wall at an angle of approximately 45 degrees with respect to a vertical axis defined by the housing.

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ATTY DKT. NO. 045625.000013