Patent Description:
Embodiments of the present disclosure generally relate to sanitizing systems, such as may be used to sanitize structures and areas within vehicles, and more particularly to systems and methods of providing power to ultraviolet lamps of the sanitizing systems.

Vehicles such as commercial aircraft are used to transport passengers between various locations. Systems are currently being developed to disinfect or otherwise sanitize surfaces within aircraft, for example, that use ultraviolet (UV) light.

In order to sanitize a surface of a structure, a known UV light sterilization method emits a broad spectrum UVC light onto the structure. However, UVC light typically takes a significant amount of time (for example, three minutes) to kill various microbes. Further, various microbes may not be vulnerable to UVC light. That is, such microbes may be able to withstand exposure to UVC light.

Also, certain types of microbes may develop a resistance to UVC light. For example, while UVC light may initially kill certain types of microbes, with continued exposure to UVC light over time, the particular species of microbe may develop a resistance to UVC light and be able to withstand UVC light exposure.

Additionally, direct exposure of certain types of UV light may pose risk to humans. For example, certain known UV systems emit UV light having a wavelength of <NUM>, which may pose a risk to humans. As such, certain known UV light disinfection systems and methods are operated in the absence of individuals. For example, a UV light disinfection system within a lavatory may be operated when no individual is within the lavatory, and deactivated when an individual is present within the lavatory.

Further, known UV light sanitizing systems are typically large, bulky, and often require fixed, stationary infrastructure.

<CIT>, in accordance with its abstract, states a UV-C light emitting disinfection device. The disinfection device has a durable outer housing that holds an array of externally facing Ultraviolet C spectrum (UV-C) Light Emitting (LEDs) that emit light within the germicidal range of the Ultraviolet C spectrum or between the wavelength(λ) range of <NUM> to <NUM>.

<CIT>, in accordance with its abstract, states disinfection methods and apparatuses, which generate pulses of germicidal light at a frequency greater than <NUM> and project the pulses of light to surfaces at least <NUM> meter from the disinfection apparatus. The pulses of light comprise a pulse duration and an energy flux sufficient to generate a power flux between approximately <NUM> W/m2 and approximately <NUM> W/m2 of ultraviolet light in the wavelength range between <NUM> and <NUM> at the surfaces. Other disinfection methods and apparatuses are provided which generate pulses of light comprising germicidal light and visible light from a germicidal light source and generate pulses of light from a visible light source that is distinct from the germicidal light source. The projections of visible light from the light sources produce a continuous stream of visible light or a collective stream of visible light pulsed at a frequency greater than <NUM>.

<CIT>, in accordance with its abstract, states a handheld portable device for sanitizing a surface or air surrounding a surface. The handheld portable device includes a body that comprises a user input and a far-UVC illumination source disposed at the body. The handheld portable device also includes a power source for providing power to the far-UVC illumination source. <CIT> shows a portable disinfecting system for a backpack.

A need exists for a system and a method for providing power to ultraviolet lamps of portable sanitizing systems.

With those needs in mind, the invention relates to a portable sanitizing system comprising a powering device in accordance with claim <NUM>.

In at least one embodiment, the powering device may further include one or more potentiometers coupled to the power controller and configured to adjust or otherwise control frequency, pulse width modulation, and current with respect to the power provided to the UV lamp.

In at least one embodiment, the coupler may be (or include) a twisted pair of insulated wires. The coupler may be (or include) a coaxial cable including an insulation layer and a metallic shielding layer that surrounds the insulation layer.

In at least one embodiment, the powering device may further include a transformer disposed between the power delivery assembly and the UV lamp. In at least one embodiment, the power delivery assembly may include an external power interface, a charger, a battery pack, and at least one capacitor. The charger is configured to receive electric current from the external power interface and supply the electric current to at least one of the battery pack or the at least one capacitor.

In at least one embodiment, the powering device may further include a power boost switch selectively actuatable to command a temporary power increase from the power delivery assembly to the UV lamp.

The foregoing summary, as well as the following detailed description of certain embodiments will be better understood when read in conjunction with the appended drawings. Further, references to "one embodiment" are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Moreover, unless explicitly stated to the contrary, embodiments "comprising" or "having" an element or a plurality of elements having a particular condition can include additional elements not having that condition.

Certain embodiments of the present disclosure provide a sanitizing system and method that includes an ultraviolet (UV) lamp (such as an excimer lamp) that emits UV light in a far UV light spectrum, such as at a wavelength of <NUM>, which neutralizes (such as kills) microbes (for example, viruses and bacteria), while posing no risk to humans. The UV lamp may be used within an internal cabin to decontaminate and kill pathogens. Embodiments of the present disclosure provide safer and more effective sanitation as compared to certain known UV systems. The UV lamp may be used in a portable sanitizing system or a fixed sanitizing system. For example, operating the UV lamp to emit sanitizing UV light having a wavelength of <NUM> may be used with a portable system or a fixed system.

Certain embodiments of the present disclosure provide systems and methods of providing power to UV lamps, such as excimer lamps and metal vapor lamps. In at least one embodiment, the UV lamp is an excimer lamp of a portable sanitizing system.

In at least one embodiment, the systems and methods include a portable powering device that is configured to be used with batteries to provide power to a UV lamp, such as an excimer lamp, that is configured to emit UV light having a wavelength in the far UV wavelength range of the electromagnetic spectrum. For example, the UV lamp is configured to emit UV light having a wavelength between <NUM> and <NUM>, such as <NUM>. In at least one other embodiment, the portable powering device is configured to provide power to a UV lamp, such as a non-excimer metal vapor plasma lamp, that is configured to emit UV light having a wavelength in the UVC wavelength range of the electromagnetic spectrum. For example, the wavelength may be from <NUM> to <NUM>, such as <NUM>.

The portable powering device includes a power source, which may include one or more batteries and/or an external power interface (e.g., electrical plug, connector, adaptor, and/or the like). The portable powering device also includes a power controller that includes one or more potentiometers that are configured to adjust frequency, pulse width modulation, and/or current. The portable powering device also includes one or more switching devices. The one or more switching devices may include an on/off power switch, a power boost switch, and/or an optional UV lamp power switch. An insulated wire of the portable powering device connects to the UV lamp, which may be within a wand assembly.

The portable powering device is configured to provide direct current (DC) voltage to the UV lamp to increase operational efficiency and power output of the UV lamp. The increased efficiency and/or power output can be achieved by the portable powering device varying the frequency and pulse width of the input DC voltage. Adjustments for the system include controlling nominal output power/efficiency, adjusting pulse width frequency and lamp efficiency, and adjusting overcurrent.

In at least one embodiment, the systems and methods are configured to provide power to a UV lamp that requires high voltage. The power controller for the UV lamp is configurable by adjusting one or more potentiometers to provide maximum or otherwise increased UV light output with minimal or reduced amount of power.

<FIG> illustrates a perspective view of a portable sanitizing system <NUM> worn by an individual <NUM>, according to an embodiment of the present disclosure. The portable sanitizing system <NUM> includes a wand assembly <NUM> coupled to a backpack assembly <NUM> that is removably secured to the individual through a harness <NUM>. The wand assembly <NUM> includes a sanitizing head <NUM> coupled to a handle <NUM>. In at least one embodiment, the sanitizing head <NUM> is moveably coupled to the handle <NUM> through a coupler <NUM>.

As shown in <FIG>, the wand assembly <NUM> is in a stowed position. In the stowed position, the wand assembly <NUM> is removably secured to a portion of the backpack assembly <NUM>, such as through one or more tracks, clips, latches, belts, ties, and/or the like.

<FIG> illustrates a perspective lateral top view of the wand assembly <NUM>, according to an embodiment of the present disclosure. The sanitizing head <NUM> couples to the handle <NUM> through the coupler <NUM>. The sanitizing head <NUM> includes a shroud <NUM> having an outer cover <NUM> that extends from a proximal end <NUM> to a distal end <NUM>. As described herein, the shroud <NUM> contains a UV lamp.

A port <NUM> extends from the proximal end <NUM>. The port <NUM> couples to a hose <NUM>, which, in turn, couples to the backpack assembly <NUM> (shown in <FIG>). The hose <NUM> contains electrical cords, cables, wiring, or the like that couples a power source or supply (such as one or more batteries) within the backpack assembly <NUM> (shown in <FIG>) to a UV lamp <NUM> within the shroud <NUM>. Optionally, the electrical cords, cables, wiring, or the like may be outside of the hose <NUM>. The hose <NUM> also contains an air delivery line, such as an air tube) that fluidly couples an internal chamber of the shroud <NUM> to an air blower, vacuum generator, air filters, and/or the like within the backpack assembly <NUM>.

The coupler <NUM> is secured to the outer cover <NUM> of the shroud <NUM>, such as proximate to the proximal end <NUM>. The coupler <NUM> may include a securing beam <NUM> secured to the outer cover <NUM>, such as through one or more fasteners, adhesives, and/or the like. An extension beam <NUM> outwardly extends from the securing beam <NUM>, thereby spacing the handle <NUM> from the shroud <NUM>. A bearing assembly <NUM> extends from the extension beam <NUM> opposite from the securing beam <NUM>. The bearing assembly <NUM> includes one or more bearings, tracks, and/or the like, which allow the handle <NUM> to linearly translate relative to the coupler <NUM> in the directions of arrows A, and/or pivot about a pivot axle in the directions of arc B. Optionally, the securing beam <NUM> may include a bearing assembly that allows the sanitizing head <NUM> to translate in the directions of arrows A, and/or rotate (for example, swivel) in the directions of arc B in addition to, or in place of, the handle <NUM> being coupled to the bearing assembly <NUM> (for example, the handle <NUM> may be fixed to the coupler <NUM>).

In at least one embodiment, the handle <NUM> includes a rod, pole, beam, or the like <NUM>, which may be longer than the shroud <NUM>. Optionally, the rod <NUM> may be shorter than the shroud <NUM>. One or more grips <NUM> are secured to the rod <NUM>. The grips <NUM> are configured to be grasped and held by an individual. The grips <NUM> may include ergonomic tactile features <NUM>.

Optionally, the wand assembly <NUM> may be sized and shaped differently than shown. For example, in at least one embodiment, the handle <NUM> may be fixed in relation to the shroud <NUM>. Further, the handle <NUM> may or may not be configured to move relative to itself and/or the shroud <NUM>. For example, the handle <NUM> and the shroud <NUM> may be integrally molded and formed as a single unit.

In at least one embodiment, the wand assembly <NUM> is not coupled to a backpack assembly. For example, the wand assembly <NUM> is a standalone unit having a power source, such as one or more batteries. As another example, the wand assembly <NUM> is coupled to a case assembly.

<FIG> illustrates a perspective rear view of the wand assembly <NUM> of <FIG>. <FIG> illustrates a perspective lateral view of the wand assembly <NUM> of <FIG>. Referring to <FIG>, the handle <NUM> may pivotally couple to the coupler <NUM> through a bearing <NUM> having a pivot axle <NUM> that pivotally couples the handle <NUM> to the coupler <NUM>. The handle <NUM> may further be configured to linearly translate into and out of the bearing <NUM>. For example, the handle <NUM> may be configured to telescope in and out. Optionally, or alternatively, in at least one embodiment, the handle <NUM> may include a telescoping body that allows the handle <NUM> to outwardly extend and inwardly recede.

<FIG> illustrates a perspective view of the portable sanitizing system <NUM> in a compact deployed position, according to an embodiment of the present disclosure. The wand assembly <NUM> is removed from the backpack assembly <NUM> (as shown in <FIG>) into the compact deployed position, as shown in.

The hose <NUM> connects the wand assembly <NUM> to the backpack assembly <NUM>. In the compact deployed position, the sanitizing head <NUM> is fully retracted in relation to the handle <NUM>.

<FIG> illustrates a perspective view of the portable sanitizing system <NUM> having the sanitizing head <NUM> in an extended position, according to an embodiment of the present disclosure. In order to extend the sanitizing head <NUM> relative to the handle <NUM>, the sanitizing head <NUM> is outwardly slid relative to the handle <NUM> in the direction of arrow A' (or the handle <NUM> is rearwardly slid relative to the sanitizing head <NUM>). As noted, the sanitizing head <NUM> is able to linearly translate in the direction of arrow A' relative to the handle <NUM> via the coupler <NUM>. The outward extension of the sanitizing head <NUM>, as shown in <FIG>, allows for the portable sanitizing system <NUM> to easily reach distant areas. Alternatively, the sanitizing head <NUM> may not linearly translate relative to the handle <NUM>.

<FIG> illustrates a perspective view of the portable sanitizing system <NUM> having the sanitizing head <NUM> in an extended position and the handle <NUM> in an extended position, according to an embodiment of the present disclosure.

To reach even further, the handle <NUM> may be configured to linearly translate, such as through a telescoping portion, to allow the sanitizing head <NUM> to reach further outwardly. Alternatively, the handle <NUM> may not be configured to extend and retract.

In at least one embodiment, the handle <NUM> may include a lock <NUM>. The lock <NUM> is configured to be selectively operated to secure the handle <NUM> into a desired extended (or retracted) position.

<FIG> illustrates a perspective view of the portable sanitizing system <NUM> having the sanitizing head <NUM> rotated in relation to the handle <NUM>, according to an embodiment of the present disclosure. As noted, the sanitizing head <NUM> is configured to rotate relative to the handle <NUM> via the coupler <NUM>. Rotating the sanitizing head <NUM> relative to the handle <NUM> allows the sanitizing head <NUM> to be moved to a desired position, and sweep or otherwise reach into areas that would otherwise be difficult to reach if the sanitizing head <NUM> was rigidly fixed to the handle <NUM>. Alternatively, the sanitizing head <NUM> may not be rotatable relative to the handle <NUM>.

<FIG> illustrates a perspective end view of a UV lamp <NUM> and a reflector <NUM> of the sanitizing head <NUM>, according to an embodiment of the present disclosure. The UV lamp <NUM> and the reflector <NUM> are secured within the shroud <NUM> (shown in <FIG>, for example) of the sanitizing head <NUM>. In at least one embodiment, the reflector <NUM> is secured to an underside <NUM> of the shroud <NUM>, such as through one or more adhesives. As another example, the reflector <NUM> is an integral part of the shroud <NUM>. For example, the reflector <NUM> may be or otherwise provide the underside <NUM> of the shroud <NUM>. The reflector <NUM> provides a reflective surface <NUM> (such as formed of Teflon, a mirrored surface, and/or the like) that is configured to outwardly reflect UV light emitted by the UV lamp <NUM>. In at least one example, shroud <NUM> may be or include a shell formed of fiberglass, and the reflector <NUM> may be formed of Teflon that provides a <NUM>% reflectivity.

The reflector <NUM> may extend along an entire length of the underside <NUM> of the shroud <NUM>. Optionally, the reflector <NUM> may extend along less than an entire length of the underside <NUM> of the shroud <NUM>.

The UV lamp <NUM> may extend along an entire length (or along substantially the entire length, such as between the ends <NUM> and <NUM>). The UV lamp <NUM> is secured to the reflector <NUM> and/or the shroud <NUM> through one or more brackets, for example. The UV lamp <NUM> includes one or more UV light emitters, such as one more bulbs, light emitting elements (such as light emitting diodes), and/or the like. In at least one embodiment, the UV lamp <NUM> is configured to emit UV light in the far UV spectrum, such as at a wavelength between <NUM> - <NUM>. In at least one embodiment, the UV lamp <NUM> is configured to emit UV light having a wavelength of <NUM>. For example, the UV lamp <NUM> may be or include a <NUM> W bulb that is configured to emit UV light having a wavelength of <NUM>. In at least one other embodiment, the UV lamp <NUM> is configured to emit UV light in the UVC spectrum, such as at a wavelength between <NUM> - <NUM>.

As shown, the reflector <NUM> includes flat, upright side walls <NUM> connected together through an upper curved wall <NUM>. The upper curved wall <NUM> may be bowed outwardly away from the UV lamp <NUM>. For example, the upper curved wall <NUM> may have a parabolic cross-section and/or profile.

It has been found that the straight, linear side walls <NUM> provide desired reflection and/or focusing of UV light emitted from the UV lamp <NUM> toward and onto a desired location. Alternatively, the side walls <NUM> may not be linear and flat.

<FIG> illustrates a perspective end view of the UV lamp <NUM> and a reflector <NUM> of the sanitizing head, according to an embodiment of the present disclosure. The reflector <NUM> shown in <FIG> is similar to the reflector <NUM> shown in <FIG>, except that the side walls <NUM> may outwardly cant from the upper curved wall <NUM>.

<FIG> illustrates a perspective end view of the UV lamp <NUM> and the reflector <NUM> of the sanitizing head, according to an embodiment of the present disclosure. In this embodiment, the side walls <NUM> may be curved according to the curvature of the upper curved wall <NUM>.

<FIG> illustrates a perspective top view of the sanitizing head <NUM>. <FIG> illustrates a perspective bottom view of the sanitizing head <NUM>. <FIG> illustrates an axial cross-sectional view of the sanitizing head <NUM> through line <NUM>-<NUM> of <FIG>. Referring to <FIG>, air <NUM> is configured to be drawn into the sanitizing head <NUM> through one or more openings <NUM> (or simply an open chamber) of the shroud <NUM>. The air <NUM> is drawn into the sanitizing head <NUM>, such as via a vacuum generator within the backpack assembly <NUM> (shown in <FIG>). The air <NUM> is drawn into the shroud <NUM>, and cools the UV lamp <NUM> as it passes over and around the UV lamp <NUM>.

The air <NUM> passes into the port <NUM> and into the hose <NUM>, such as within an air tube within the hose <NUM>. The air <NUM> not only cools the UV lamp <NUM>, but also removes ozone, which may be generated by operation of the UV lamp <NUM>, within the shroud <NUM>. The air <NUM> may be drawn to an air filter, such as an activated carbon filter, within the backpack assembly <NUM>.

In at least one embodiment, the portable sanitizing system <NUM> may also include an alternative ozone mitigation system. As an example, the ozone mitigation system may be disposed in the shroud <NUM> or another portion of the system, and may include an inert gas bath, or a face inert gas system, such as in <CIT>.

Referring to <FIG>, in particular, a bumper <NUM> may be secured to an exposed lower circumferential edge <NUM> of the shroud <NUM>. The bumper <NUM> may be formed of a resilient material, such as rubber, another elastomeric material, open or closed cell foam, and/or the like. The bumper <NUM> protects the sanitizing head <NUM> from damage in case the sanitizing head <NUM> inadvertently contacts a surface. The bumper <NUM> also protects the surface from damage.

The openings <NUM> may be spaced around the lower surface of the shroud <NUM> such that they do not provide a direct view of the UV lamp <NUM>. For example, the openings <NUM> may be positioned underneath portions that are spaced apart from the UV lamp <NUM>.

Referring to <FIG>, in particular, the sanitizing head <NUM> may include a cover plate <NUM> below the UV lamp <NUM>. The cover plate <NUM> may be formed of glass, for example, and may be configured to filter UV light emitted by the UV lamp <NUM>. The UV lamp <NUM> may be secured within an interior chamber <NUM> defined between the reflector <NUM> and the cover plate <NUM>. In at least one embodiment, the cover plate <NUM> is or otherwise includes a far UV band pass filter. For example, the cover plate <NUM> may be a <NUM> band pass filter that filters UV light emitted by the UV lamp <NUM> to a <NUM> wavelength. As such, UV light that is emitted from the sanitizing head <NUM> may be emitted at a wavelength of <NUM>.

Referring to <FIG>, a rim <NUM> (such as a <NUM>" thick Titanium rim) may connect the cover plate <NUM> to the shroud <NUM>. The rim <NUM> may distribute impact loads therethrough and/or therearound.

In at least one embodiment, ranging light emitting diodes (LEDs) <NUM> may be disposed proximate to ends of the UV lamp <NUM>. The ranging LEDs <NUM> may be used to determine a desired range to a structure that is to be sanitized, for example. In at least one embodiment, the ranging LEDs <NUM> may be disposed on or within the rim <NUM> and/or the cover plate <NUM>.

<FIG> illustrates a perspective end view of the UV lamp <NUM> secured to a mounting bracket or clamp <NUM>, according to an embodiment of the present disclosure. Each end of the UV lamp <NUM> may be coupled to mounting bracket or clamp <NUM>, which secures the UV lamp <NUM> to the shroud <NUM> (shown in <FIG>). A buffer, such as a thin (for example, <NUM>") sheet of silicon may be disposed between the end of the UV lamp <NUM> and the bracket <NUM>. Optionally, the UV lamp <NUM> may be secured to the shroud <NUM> through brackets or clamps that differ in size and shape than shown. As another example, the UV lamp <NUM> may be secured to the shroud <NUM> through adhesives, fasteners, and/or the like.

<FIG> illustrates a perspective exploded view of the backpack assembly <NUM>, according to an embodiment of the present disclosure. The backpack assembly <NUM> includes a front wall <NUM> that couples to a rear shell <NUM>, a base <NUM>, and a top cap <NUM>. An internal chamber <NUM> is defined between the front wall <NUM>, the rear shell <NUM>, the base <NUM>, and the top cap <NUM>. One or more batteries <NUM>, such as rechargeable Lithium batteries, are contained within the internal chamber <NUM>. An air generation sub-system <NUM> is also contained within the internal chamber <NUM>. The air generation sub-system <NUM> is in fluid communication with an air tube within the hose <NUM> (shown in <FIG>, for example). The air generation sub-system <NUM> may include an airflow device, such as a vacuum generator, an air blower, and/or the like. The airflow device is configured to generate airflow to cool the UV lamp, draw air from the sanitizing head <NUM> into the backpack assembly <NUM> and out through an exhaust, draw or otherwise remove generated ozone away from the shroud <NUM>, and/or the like.

One or more air filters <NUM>, such as carbon filters, are within the backpack assembly <NUM>. The air filters <NUM> are in communication with the air tube or other such delivery duct or line that routes air through the hose <NUM> and into the backpack assembly <NUM>. The air filters <NUM> are configured to filter the air that is drawn into the backpack assembly <NUM> from the shroud <NUM>. For example, the air filters <NUM> may be configured to remove, deactivate, or otherwise neutralize ozone.

The batteries <NUM> and/or a power supply or controller within the backpack assembly <NUM> provides operating power for the UV lamp <NUM> of the sanitizing head <NUM> (shown in <FIG>, for example). The top cap <NUM> may be removably coupled to the front wall <NUM> and the rear shell <NUM>. The top cap <NUM> may be removed to provide access to the batteries <NUM> (such as to remove and/or recharge the batteries), for example. Additional space may be provided within the backpack assembly <NUM> for storage of supplies, additional batteries, additional components, and/or the like. In at least one embodiment, the front wall <NUM>, the rear shell <NUM>, the base <NUM>, and the top cap <NUM> may be formed of fiberglass epoxy.

<FIG> illustrates a perspective front view of the harness <NUM> coupled to the backpack assembly <NUM>, according to an embodiment of the present disclosure. The harness <NUM> may include shoulder straps <NUM> and/or a waist or hip belt or strap <NUM>, which allow the individual to comfortably wear the backpack assembly <NUM>.

Referring to <FIG>, in operation, the individual may walk through an area wearing the backpack assembly <NUM>. When a structure to be sanitized is found, the individual may position grasp the handle <NUM> and position the sanitizing head <NUM> as desired, such as by extending and/or rotating the sanitizing head <NUM> relative to the handle <NUM>. The individual may then engage an activation button on the handle <NUM>, for example, to activate the UV lamp <NUM> to emit sanitizing UV light onto the structure. As the UV lamp <NUM> is activated, air <NUM> is drawn into the shroud <NUM> to cool the UV lamp <NUM>, and divert any generated ozone into the backpack assembly <NUM>, where it is filtered by the air filters <NUM>.

The extendable wand assembly <NUM> allows the sanitizing head <NUM> to reach distant areas, such as over an entire set of three passenger seats, from a row within an internal cabin of a commercial aircraft.

<FIG> illustrates an ultraviolet light spectrum. Referring to <FIG>, in at least one embodiment, the sanitizing head <NUM> is configured to emit sanitizing UV light (through operation of the UV lamp <NUM>) within a far UV spectrum, such as between <NUM> to <NUM>. In at least one embodiment, the sanitizing head <NUM> emits sanitizing UV light having a wavelength of <NUM>.

It has been found that sanitizing UV light having a wavelength of <NUM> kills pathogens (such as viruses and bacteria), instead of inactivating pathogens. In contrast, UVC light at a wavelength of <NUM> inactivates pathogens by interfering with their DNA, resulting in temporary inactivation, but may not kill the pathogens. Instead, the pathogen may be reactivated by exposure to ordinary white light at a reactivation rate of about <NUM>% per hour. As such, UVC light at a wavelength of <NUM> may be ineffective in illuminated areas, such as within an internal cabin of a vehicle. Moreover, UVC light at <NUM> is not recommended for human exposure because it may be able to penetrate human cells.

In contrast, sanitizing UV light having a wavelength of <NUM> is safe for human exposure and kills pathogens. Further, the sanitizing UV light having a wavelength of <NUM> may be emitted at full power within one millisecond or less of the UV lamp <NUM> being activated (in contrast the UVC light having a wavelength of <NUM>, which may take seconds or even minutes to reach full power).

<FIG> illustrates a perspective front view of an aircraft <NUM>, according to an embodiment of the present disclosure. The aircraft <NUM> includes a propulsion system <NUM> that includes engines <NUM>, for example. Optionally, the propulsion system <NUM> may include more engines <NUM> than shown. The engines <NUM> are carried by wings <NUM> of the aircraft <NUM>. In other embodiments, the engines <NUM> may be carried by a fuselage <NUM> and/or an empennage <NUM>. The empennage <NUM> may also support horizontal stabilizers <NUM> and a vertical stabilizer <NUM>.

The fuselage <NUM> of the aircraft <NUM> defines an internal cabin <NUM>, which includes a flight deck or cockpit, one or more work sections (for example, galleys, personnel carry-on baggage areas, and the like), one or more passenger sections (for example, first class, business class, and coach sections), one or more lavatories, and/or the like. The internal cabin <NUM> includes one or more lavatory systems, lavatory units, or lavatories, as described herein.

Alternatively, instead of an aircraft, embodiments of the present disclosure may be used with various other vehicles, such as automobiles, buses, locomotives and train cars, watercraft, and the like. Further, embodiments of the present disclosure may be used with respect to fixed structures, such as commercial and residential buildings.

<FIG> illustrates a top plan view of an internal cabin <NUM> of an aircraft, according to an embodiment of the present disclosure. The internal cabin <NUM> may be within the fuselage <NUM> of the aircraft, such as the fuselage <NUM> of <FIG>. For example, one or more fuselage walls may define the internal cabin <NUM>. The internal cabin <NUM> includes multiple sections, including a front section <NUM>, a first class section <NUM>, a business class section <NUM>, a front galley station <NUM>, an expanded economy or coach section <NUM>, a standard economy of coach section <NUM>, and an aft section <NUM>, which may include multiple lavatories and galley stations. It is to be understood that the internal cabin <NUM> may include more or less sections than shown. For example, the internal cabin <NUM> may not include a first class section, and may include more or less galley stations than shown. Each of the sections may be separated by a cabin transition area <NUM>, which may include class divider assemblies between aisles <NUM>.

The aisles <NUM>, <NUM>, and <NUM> extend to egress paths or door passageways <NUM>. Exit doors <NUM> are located at ends of the egress paths <NUM>. The egress paths <NUM> may be perpendicular to the aisles <NUM>, <NUM>, and <NUM>. The internal cabin <NUM> may include more egress paths <NUM> at different locations than shown. The portable sanitizing system <NUM> shown and described with respect to <FIG> may be used to sanitize various structures within the internal cabin <NUM>, such as passenger seats, monuments, stowage bin assemblies, components on and within lavatories, galley equipment and components, and/or the like.

<FIG> illustrates a top plan view of an internal cabin <NUM> of an aircraft, according to an embodiment of the present disclosure. The internal cabin <NUM> is an example of the internal cabin <NUM> shown in <FIG>. The internal cabin <NUM> may be within a fuselage <NUM> of the aircraft. For example, one or more fuselage walls may define the internal cabin <NUM>. The internal cabin <NUM> includes multiple sections, including a main cabin <NUM> having passenger seats <NUM>, and an aft section <NUM> behind the main cabin <NUM>. It is to be understood that the internal cabin <NUM> may include more or less sections than shown.

The aisle <NUM> extends to an egress path or door passageway <NUM>. Exit doors <NUM> are located at ends of the egress path <NUM>. The egress path <NUM> may be perpendicular to the aisle <NUM>. The internal cabin <NUM> may include more egress paths than shown. The portable sanitizing system <NUM> shown and described with respect to <FIG> may be used to sanitize various structures within the internal cabin <NUM>, such as passenger seats, monuments, stowage bin assemblies, components on and within lavatories, galley equipment and components, and/or the like.

<FIG> illustrates a perspective interior view of an internal cabin <NUM> of an aircraft, according to an embodiment of the present disclosure. The internal cabin <NUM> includes outboard walls <NUM> connected to a ceiling <NUM>. Windows <NUM> may be formed within the outboard walls <NUM>. A floor <NUM> supports rows of seats <NUM>. As shown in <FIG>, a row <NUM> may include two seats <NUM> on either side of an aisle <NUM>. However, the row <NUM> may include more or less seats <NUM> than shown. Additionally, the internal cabin <NUM> may include more aisles than shown.

Overhead stowage bin assemblies <NUM> are secured to the ceiling <NUM> and/or the outboard wall <NUM> above and inboard from the PSU <NUM> on either side of the aisle <NUM>. The overhead stowage bin assemblies <NUM> are secured over the seats <NUM>. The overhead stowage bin assemblies <NUM> extend between the front and rear end of the internal cabin <NUM>. Each stowage bin assembly <NUM> may include a pivot bin or bucket <NUM> pivotally secured to a strongback (hidden from view in <FIG>). The overhead stowage bin assemblies <NUM> may be positioned above and inboard from lower surfaces of the PSUs <NUM>. The overhead stowage bin assemblies <NUM> are configured to be pivoted open in order to receive passenger carry-on baggage and personal items, for example.

The portable sanitizing system <NUM> shown and described with respect to <FIG> may be used to sanitize various structures shown within the internal cabin <NUM>.

When not in use, the portable sanitizing system <NUM> may be stored within a closet, galley cart bay, or galley cart, such as within the internal cabin of the vehicle.

<FIG> illustrates a perspective internal view of a lavatory <NUM> within an internal cabin of a vehicle, such as any of the internal cabins described herein.

The lavatory <NUM> is an example of an enclosed space, monument or chamber, such as within the internal cabin a vehicle. The lavatory <NUM> may be onboard an aircraft, as described above. Optionally, the lavatory <NUM> may be onboard various other vehicles. In other embodiments, the lavatory <NUM> may be within a fixed structure, such as a commercial or residential building. The lavatory <NUM> includes a base floor <NUM> that supports a toilet <NUM>, cabinets <NUM>, and a sink <NUM> or wash basin. The lavatory <NUM> may be arranged differently than shown. The lavatory <NUM> may include more or less components than shown.

The portable sanitizing system <NUM> shown and described with respect to <FIG> may be used to sanitize the various structures, components, and surfaces within the lavatory <NUM>.

<FIG> illustrates a flow chart of a portable sanitizing method, according to an embodiment of the present disclosure. The method includes emitting (<NUM>), from a sanitizing head including an ultraviolet (UV) lamp, UV light having a wavelength between <NUM> - <NUM> onto a surface; and disinfecting (<NUM>) the surface by said emitting (<NUM>). In at least one embodiment, said emitting (<NUM>) includes emitting the UV light having a wavelength of <NUM>.

In at least embodiment, the portable sanitizing method further includes moveably coupling a handle to the sanitizing head. For example, said moveably coupling includes one or both of linearly translating or swiveling the sanitizing head in relation to the handle.

In at least one embodiment, the portable sanitizing method includes coupling a backpack assembly to the sanitizing head through a hose.

Referring to <FIG>, the portable sanitizing system <NUM> can be used to safely and effectively sanitize high-touch surfaces in the flight deck and internal cabin in a timely and cost-effective manner. UV disinfection allows the internal cabin to be quickly and effectively disinfected, such as between flights. In at least one embodiment, the portable sanitizing system <NUM> is used to augment a cleaning process, such as after manual cleaning.

As described herein, embodiments of the present disclosure provide systems and a methods for efficiently sterilizing surfaces, components, structures, and/or the like within an internal cabin of a vehicle. Further, embodiments of the present disclosure provide compact, easy-to-use, and safe systems and methods for using UV light to sterilize surfaces within an internal cabin.

<FIG> illustrates a schematic block diagram of a system <NUM> for providing power to a UV lamp <NUM> of a wand assembly <NUM>, according to an embodiment of the present disclosure. In at least one embodiment, the UV lamp <NUM> is within a sanitizing head <NUM> of the wand assembly <NUM>. The wand assembly <NUM> may or may not include a handle. The handle may or may not be moveable in relation to the sanitizing head <NUM>.

In at least one embodiment, the UV lamp <NUM> is an excimer lamp (also known as a dielectric barrier discharge (DBD) lamp). Excimer lamps include a noble gas and a halogen gas, and the interaction of these gases emits light in the UV wavelength, such as the far UV range. A high frequency alternating current (AC) power source is used to excite the gases. In at least one embodiment, the high frequency AC power source may be a bridge circuit, which can vary the pulse width to achieve stable output and/or vary the frequency to achieve a stable voltage and/or power output. An example of the circuitry that can be used to excite an excimer lamp is shown in <FIG>, and described below. The construction of the excimer lamp relies on the capacitance of dielectric barrier(s) to limit high frequency current versus having a short circuit. This capacitance may cause high frequency resonances. The resonances of the UV excimer lamp may be utilized with the drive circuitry of the portable powering device.

As stated above, the portable powering device according to the embodiments herein can also be used to power a metal vapor plasma UV lamp (e.g., non-excimer). Such metal vapor lamps can include mercury vapor, sodium vapor, and/or the like, and applies a current through a conducting metal vapor plasma to produce UV light. The current utilized in metal vapor lamps can be AC or DC and have a wide range of frequencies.

The UV lamp <NUM> is configured to emit UV light having a wavelength of <NUM>. Optionally, the UV lamp <NUM> may be configured to emit UV light having a different wavelength. For example, the UV lamp <NUM> may be configured to emit UV light having a wavelength between <NUM> and <NUM>. In at least one other embodiment, the UV lamp <NUM> may be configured to emit UV light in the UVC spectrum.

The system <NUM> includes a powering device <NUM> that is configured to provide power to the UV lamp <NUM>. The powering device <NUM> includes a housing <NUM>. The powering device <NUM> may be contained within the backpack assembly <NUM> shown in <FIG> and <FIG>. As an example, the powering device <NUM> may include or replace the batteries <NUM>. In at least one other embodiment, the powering device <NUM> is separate and distinct from the backpack assembly <NUM>. For example, the powering device <NUM> is a portable device that is configured to selectively couple to and decouple from the wand assembly <NUM>. In at least one embodiment, the powering device <NUM> may be a handheld device.

The housing <NUM> of the powering device <NUM> includes one or more batteries <NUM> and a power controller <NUM>, which includes or is otherwise coupled to one or more potentiometers <NUM>. The power controller <NUM> is coupled to the batteries <NUM>, such as through one or more wired or wireless connections. The one or more batteries <NUM> are configured to provide power to the UV lamp <NUM>. The power controller <NUM> is configured to control one or more aspects of the power delivered from the batteries <NUM> to the UV lamp <NUM>.

The powering device <NUM> may also include a plurality of switches on or within the housing <NUM>. For example, the powering device <NUM> includes a power switch <NUM>, a power boost switch <NUM>, and/or a lamp power switch <NUM>. Optionally, the power switch <NUM>, the power boost switch <NUM>, and the lamp power switch <NUM> may be on or within the wand assembly <NUM>.

A coupler <NUM> extends from the batteries <NUM> and is configured to connect to the UV lamp <NUM>. For example, the coupler <NUM> may be at least one lead having an output end <NUM> that connects to a power input <NUM> of the UV lamp <NUM>. The at least one lead may be one or more insulated wires, metal bars, circuit boards, and/or the like. In at least one embodiment, the coupler <NUM> includes multiple insulated lead wires, and the configuration of the lead wires can "tune" the UV lamp <NUM> for one or more properties, such as for higher power output. For example, the multiple insulated wires may be twisted around each other and/or surrounded by a shield layer, either of which may increase the load capacitance and change the resonance of the UV lamp <NUM> system. In a non-limiting example, an excimer UV lamp directly connected to the power supply (e.g., via untwisted and/or unshielded electrically conductive elements) may produce <NUM>-<NUM> mW of UV light while drawing <NUM> W. By adding a shielding layer and/or twisting longer wires that represent the coupler <NUM>, the resonance changes and, as a result, the power draw may increase to <NUM> W and the UV light output may increase to <NUM> mW, without adjusting the power supply. As such, the shielding and/or twist of the insulated lead wires can be used to tune the excimer lamp load.

In at least one embodiment, the output end <NUM> may be a plug that is configured to removably connect to the power input <NUM>. Optionally, the coupler <NUM> may be a fixed connection (that is, not removably connected) between the UV lamp <NUM> and the powering device <NUM>. For example, the powering device <NUM> may be secured to, or otherwise form part of, the wand assembly <NUM>. In at least one embodiment, the powering device <NUM> may be part of a control panel of the wand assembly <NUM>.

The powering device <NUM> is configured to provide power to the UV lamp <NUM>, such as an excimer lamp that is configured to emit UV light having a wavelength between <NUM> - <NUM>. For example, the batteries <NUM> and the power controller <NUM> cooperate to provide power to the UV lamp <NUM>.

The potentiometers <NUM> are configured to adjust or otherwise control frequency, pulse width modulation, and/or current with respect to the power provided to the UV lamp <NUM>. The power switch <NUM> may be a push button, for example. The power switch <NUM> may be engaged by a user to activate the powering device <NUM> to provide power to the UV lamp <NUM>. The user may selectively engage the power switch <NUM> to selectively provide power to the UV lamp <NUM>.

In at least one embodiment, the portable powering device <NUM> includes an on/off switch (such as the power switch), the power boost switch <NUM>, and an optional switch to control UV lamp power switch <NUM>. The power boost switch <NUM> may be engaged by a user to provide increased or boosted power to the UV lamp through the power controller <NUM> and/or the batteries <NUM>. The UV lamp power switch <NUM> may be engaged by the user to adjust power of the UV lamp <NUM>, which is coupled to the powering device <NUM> through the coupler <NUM>. In at least one embodiment, the one or more potentiometers <NUM> of the power controller <NUM> are configured to control nominal output power/efficiency of the powering device <NUM>, adjust pulse width frequency and lamp efficiency, and adjust overcurrent. In at least one embodiment, the power controller <NUM> is configurable by adjusting the potentiometers <NUM> to provide maximum or otherwise increased UV light output from the UV lamp <NUM> with minimal or reduced amount of power.

In at least one embodiment, the powering device <NUM> provides high voltage power to the UV lamp <NUM> with adjustable voltage, frequency, pulse width, and transient capabilities. The powering device <NUM> is able to vary the operating temperature, UV output level, power consumption, and heat dissipation of the UV lamp <NUM>.

As described herein, the powering device <NUM> is configured to provide power to the UV lamp <NUM> of a sanitizing system, such as the portable sanitizing system <NUM> (shown in <FIG>, for example). The powering device <NUM> includes the one or more batteries <NUM> configured to provide power to the UV lamp, and the power controller <NUM> coupled to the one or more batteries <NUM>. The power controller <NUM> is configured to control one or more aspects of the power provided from the one or more batteries <NUM> to the UV lamp <NUM>.

In at least one embodiment, the powering device <NUM> further includes the one or more potentiometers <NUM> coupled to the power controller <NUM>. The one or more potentiometers <NUM> are configured to adjust or otherwise control aspects such as frequency, pulse width modulation, and/or current with respect to the power provided to the UV lamp <NUM>.

In at least one embodiment, the powering device <NUM> further includes one or more switches <NUM>, <NUM>, and/or <NUM>. In an example, the one or more switches are on or within the housing <NUM> of the powering device <NUM>. In another example, the one or more switches are on or within the wand assembly <NUM>. As an example, the switches include the power switch <NUM>, the power boost switch <NUM>, and the lamp power switch <NUM>.

In at least one embodiment, the coupler <NUM> connects the batteries <NUM> to the UV lamp <NUM>. The coupler <NUM> may include an insulated wire. The coupler <NUM> may be configured to removably connect to (for example, selectively connect to an disconnect from) the UV lamp <NUM>.

<FIG> illustrates a schematic diagram of the system <NUM> for providing power to the UV lamp <NUM> of the wand assembly <NUM>, according to an embodiment of the present disclosure. As shown, the wand assembly <NUM> may include the power switch <NUM>, the power boost switch <NUM>, and the lamp power switch <NUM>. The system <NUM> may include more or less switches than shown.

A plurality of batteries <NUM> may be within a battery pack <NUM>. The batteries <NUM> may be arranged in series and/or parallel. In at least one embodiment, a transformer <NUM> is disposed between the batteries <NUM> and the UV lamp <NUM>. For example, the transformer <NUM> may be part of the coupler <NUM>, or disposed between the coupler <NUM> and the batteries <NUM> or the UV lamp <NUM>. The coupler <NUM> may include at least one insulated lead wire extending between the transformer <NUM> and the UV lamp <NUM>. The at least one insulated lead wire may be a twisted pair of wires or a coaxial cable. The coaxial cable includes at least one core conductor, at least one insulation layer, and at least one metallic shielding layer. The at least one insulated lead wire may include at least one metallic shielding layer that surrounds insulation layers and metal cores of the wire(s).

The power controller <NUM> is coupled to a plurality of potentiometers 510a, 510b, and 510c. The power controller <NUM> may include or otherwise provide a user interface, such as switches, keys, a touchscreen interface, or the like, that is configured to allow a user to adjust various power settings through the potentiometers <NUM>. The potentiometers <NUM> are configured to control various power parameters or aspects regarding the power delivered to the UV lamp <NUM>. For example, the potentiometer 510a is configured to adjust or otherwise control a nominal output power/efficiency of the power supplied to the UV lamp <NUM>. The potentiometer 510b is configured to adjust the frequency of the pulse width modulation of the power supplied to the UV lamp <NUM>. The potentiometer 510c is configured to adjust an overcurrent trip point of the power supplied to the UV lamp <NUM>.

As shown, the potentiometers 510a, 510b, and 510c may be outside of the power controller <NUM>. Optionally, the potentiometers 510a, 510b, and 510c may be within the power controller <NUM>, such as mounted to a common circuit board or the like. The system <NUM> may include more or less potentiometers than shown. For example, the system <NUM> may include only one or two of the potentiometers 510a, 510b, or 510c. Optionally, the system <NUM> may include additional potentiometers that are configured to adjust or otherwise control different aspects of the power supplied to the UV lamp <NUM>.

In at least one embodiment, current limit may be adjusted through a potentiometer. Pulse width modulation (PWM) may be adjusted through a potentiometer. Frequency may be adjusted through a potentiometer. Battery input may be through 120V direct current. The battery input may be delivered to one or more field effect transistors (FETs). The power controller <NUM> in <FIG> has both a first PWM output (e.g., Output A) and a second PWM output (e.g., Output B) which provide electric current to the transformer <NUM>. In at least one other embodiment, the power controller <NUM> has a single power output that connects to the UV lamp <NUM>, instead of the dual PWM output shown in <FIG>.

The power switch <NUM> is configured to activate and deactivate the UV lamp <NUM>. That is, the power switch <NUM> is configured to run the UV lamp <NUM> on and off.

The power boost switch <NUM> may have two different functions. The first function may be to command a temporary power increase. For example, when the power boost switch <NUM> is engaged, a temporary (for example, <NUM> seconds or less) power boost is supplied to the UV lamp <NUM>. Additionally, the power boost switch <NUM> can provide starting aid or assist by increasing the voltage. For example, in cold temperature environments, the UV lamp <NUM> may require a higher voltage to start the UV lamp <NUM>, so the boost switch <NUM> can be engaged to provide a voltage increase in cold environments, such as when the ambient temperature is less than <NUM>, <NUM>, or the like. Optionally, the system <NUM> may not include the power boost switch <NUM>.

The lamp power switch <NUM> is configured to control the UV lamp power level or output. For example, the lamp power switch <NUM> may be engaged to selectively increase or decrease lamp power output. Optionally, the system <NUM> may not include the lamp power switch <NUM>.

<FIG> illustrates a flow chart of a method of providing power to an ultraviolet lamp of a sanitizing system, according to an embodiment of the present disclosure. The method includes providing (<NUM>), by one or more batteries of a powering device, power to the UV lamp, and controlling (<NUM>), from a power controller coupled to the one or more batteries, one or more aspects of the power provided from the one or more batteries to the UV lamp.

In at least one embodiment, the method also includes coupling one or more potentiometers to the power controller. As a further example, the method includes adjusting or otherwise controlling, by the one or more potentiometers, frequency, pulse width modulation, and current with respect to the power provided to the UV lamp.

In at least one embodiment, the method also includes connecting, by a coupler, the one or more batteries to the UV lamp.

In at least one embodiment, the method also includes disposing a transformer between the one or more batteries and the UV lamp.

<FIG> illustrates a schematic diagram of a system <NUM>' for providing power to the UV lamp <NUM> of the wand assembly <NUM>, in which the system <NUM>' includes a power delivery assembly <NUM> according to a first embodiment of the present disclosure. The power delivery assembly <NUM> includes the battery pack <NUM>, one or more low impedance capacitors <NUM>, a charger <NUM>, and an external power interface <NUM>. The charger <NUM> is electrically connected to both the external power interface <NUM> and the battery pack <NUM>, and is disposed between the external power interface <NUM> and the battery pack <NUM>. The battery pack <NUM> is electrically connected to the one or more capacitors <NUM>, which receive the electric current supplied by the battery pack <NUM>.

The external power interface <NUM> can include or represent an electrical connector (e.g., a socket, plug, or the like), a power cord, and/or the like, for conveying electrical energy from an external power source to the system <NUM>'. The external power source may be a power circuit integrated into a vehicle or building, a generator, an external battery pack, a solar panel of photovoltaic cells, or the like. The charger <NUM> is used to selective charge the battery pack <NUM> based on electrical energy received via the external power interface <NUM>. The charger <NUM> may be a constant current charger that includes a voltage-limited power factor correction (PFC) circuit and/or a rectifier. In a non-limiting example in which the batteries <NUM> are lithium ion batteries, the charger <NUM> may be a constant current, voltage-limited circuit and may provide cell equalization. The charger <NUM> with the PFC circuit may have the capability to vary the output voltage to the battery pack <NUM>. Optionally, the power boost input may control the PFC output voltage.

In at least one embodiment, the batteries <NUM> could be charged by an external power source that is connected to the interface <NUM>, even while the system <NUM>' is operating and providing electrical energy to the UV lamp <NUM>. For example, when connected to the external power source, the batteries <NUM> may be maintained at a designated charge state, such as peak charge, even when operating. Optionally, when power is received from the external power source, the charger <NUM> may be controlled (e.g., via circuit switching devices) to bypass the battery pack <NUM> and supply current directly to the capacitor(s) <NUM>. The charger <NUM> could be configured with a peak power limit, which may be useful in conditions with limited external power supply.

The one or more low impedance capacitors <NUM> receive the electrical energy from the battery pack <NUM>. The capacitor(s) <NUM> may temporarily store the energy in order to supply high peak currents that may be required during resonances of the excimer UV lamp <NUM>.

The system <NUM>' may have the capability to operate on AC or DC external power. For example, if the external power is AC, the circuitry within the charger <NUM>, such as a rectifier or the PFC circuit converts the AC to DC before supplying the DC to the battery pack <NUM>. In an alternative embodiment, the power delivery assembly <NUM> does not include the external power interface <NUM> and the charger <NUM>. For example, once the batteries <NUM> are depleted, the batteries <NUM> may have to be removed and recharged or replaced. Omitting the internal charger <NUM> can reduce weight and/or manufacturing costs. In another embodiment, the power delivery assembly <NUM> may retain the external power interface <NUM> and omit the integrated charger <NUM>, such that the batteries <NUM> can be selectively charged by connecting the external power interface <NUM> to an external charger.

<FIG> illustrates a schematic diagram of a system <NUM>" for providing power to the UV lamp <NUM> of the wand assembly <NUM>, in which the system <NUM>" includes a power delivery assembly <NUM>' according to another embodiment of the present disclosure. In the illustrated embodiment, the power delivery assembly <NUM>' lacks the battery pack <NUM> and charger <NUM>. The power delivery assembly <NUM>' includes the external power interface <NUM>, a rectifier <NUM>, and the one or more low impedance capacitors <NUM>. The rectifier <NUM> is electrically connected to the interface <NUM> and the capacitor(s) <NUM>, and is disposed between the interface <NUM> and the capacitor(s) <NUM>. The rectifier <NUM> may receive AC electrical energy from the interface <NUM>, convert the AC to DC, and supply the DC to the capacitor(s) <NUM>. The lack of battery pack and charger may reduce weight and/or manufacturing costs. In the illustrated embodiment, the external power interface <NUM> has to be connected to, and receiving current from, an external power source for the system <NUM>" to operate and power the UV lamp <NUM>.

Also provided are the following illustrative, non-exhaustive examples of further non-claimed embodiments that are compatible with the claimed subject matter:
The external power interface may be configured to connect to an external power source, the charger may be configured to receive electric current from the external power source, via the external power interface, and supply the electric current to at least one of the battery pack or the at least one capacitor.

As described herein, embodiments of the present disclosure provide systems and methods for providing power to a UV lamp, such as a <NUM> excimer lamp of a wand assembly of a portable sanitizing system.

While various spatial and directional terms, such as top, bottom, lower, mid, lateral, horizontal, vertical, front and the like can be used to describe embodiments of the present disclosure, it is understood that such terms are merely used with respect to the orientations shown in the drawings.

It is to be understood that the above description is intended to be illustrative, and not restrictive. For example, the above-described embodiments (and/or aspects thereof) can be used in combination with each other. In addition, many modifications can be made to adapt a particular situation or material to the teachings of the various embodiments of the disclosure without departing from their scope. While the dimensions and types of materials described herein are intended to define the parameters of the various embodiments of the disclosure, the embodiments are by no means limiting and are exemplary embodiments. Many other embodiments will be apparent to those of skill in the art upon reviewing the above description. The scope of the various embodiments of the disclosure should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. In the appended claims and the detailed description herein, the terms "including" and "in which" are used as the plain-English equivalents of the respective terms "comprising" and "wherein. " Moreover, the terms "first," "second," and "third," etc. are used merely as labels, and are not intended to impose numerical requirements on their objects.

This written description uses examples to disclose the various embodiments of the disclosure, including the best mode, and also to enable any person skilled in the art to practice the various embodiments of the disclosure, including making and using any devices or systems. The patentable scope of the various embodiments of the disclosure is defined by the claims, and can include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if the examples have structural elements that do not differ from the literal language of the claims, or if the examples include equivalent structural elements with insubstantial differences from the literal language of the claims.

Claim 1:
A portable sanitizing system (<NUM>) comprising:
a backpack assembly (<NUM>); characterized in that it further comprises:
a wand assembly (<NUM>) comprising a shroud (<NUM>) with an ultraviolet (UV) lamp (<NUM>);
a powering device (<NUM>) disposed within the backpack assembly (<NUM>) and configured to provide power to the ultraviolet (UV) lamp (<NUM>);
an air generation sub-system (<NUM>) disposed within the backpack assembly (<NUM>);
a hose (<NUM>) configured to couple the backpack assembly (<NUM>) and the UV lamp (<NUM>),
wherein the powering device (<NUM>) comprising:
a power delivery assembly (<NUM>) configured to provide power to the UV lamp (<NUM>);
a power controller (<NUM>) coupled to the power delivery assembly (<NUM>), wherein the power controller (<NUM>) is configured to control one or more aspects of the power provided from the power delivery assembly (<NUM>) to the UV lamp (<NUM>); and
wherein the hose (<NUM>) comprises a plurality of electrical cords configured to electrically couple the power delivery assembly (<NUM>) to the UV lamp (<NUM>), and an air delivery line configured to fluidly couple the air generation sub-system (<NUM>) of the backpack assembly (<NUM>) and an internal chamber of the shroud (<NUM>) of the wand assembly (<NUM>).