A portable sterilization system having a backpack assembly coupled to a wand assembly

Abstract

To provide a sterilization system that can be used to sterilize structures and areas in vehicles such as commercial aircraft.SOLUTION: A portable sterilization system 100 includes a wand assembly 102 that includes an ultraviolet (UV) lamp, and a backpack assembly 104 that is connected to the wand assembly. The portable sterilization system may further include a hose that connects the backpack assembly to the wand assembly.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to a disinfection system, for example, a disinfection system that can be used to disinfect structures and areas within a vehicle such as a commercial aircraft.

Background Art

[0002] Vehicles such as commercial aircraft are used to transport passengers to various locations. Systems for disinfecting or sterilizing the surfaces within an aircraft are currently being developed, for example, systems that utilize ultraviolet (UV) light. To disinfect the surface of a structure, in known UV light-based disinfection methods, broad-spectrum UVC light is irradiated onto the structure.

[0003] However, certain UV light disinfection systems are generally large and bulky, and often require a fixed stationary infrastructure.

Summary of the Invention

[0004] There is a need for a system and method for efficiently disinfecting the surfaces within the interior cabin of a vehicle. Furthermore, there is a need for a system and method for achieving disinfection in narrow and confined spaces. In addition, there is a need for a system and method that can quickly disinfect the interior areas of a vehicle's interior cabin, stores such as restaurants, and entertainment facilities (such as stadiums).

[0005] In view of such a need, some embodiments of the present disclosure provide a portable disinfection system including a wand assembly including an ultraviolet (UV) light source such as a lamp (e.g., an excimer lamp, a mercury lamp, a UV LED), and a second assembly such as a backpack assembly connected to the wand assembly. In at least one embodiment, a coupler such as a hose connects the backpack assembly to the wand assembly. In certain embodiments, the coupler includes a hose and / or wiring. In certain embodiments, the wiring is embedded in the hose. In certain embodiments, the hose is used for connection purposes or to move air around or inside the wand assembly or the light source for ozone reduction.

[0006] In at least one embodiment, the backpack assembly includes an air flow device configured to perform one or more of generating an air flow for cooling the UV lamp, sucking air from or blowing air into the disinfection head of the wand assembly, or removing ozone from the disinfection head.

[0007] In at least one embodiment, the backpack assembly includes at least one air filter configured to filter air sucked from the disinfection head of the wand assembly.

[0008] In at least one embodiment, the backpack assembly includes one or more batteries for supplying power to the UV lamp. In one or more embodiments, the UV assembly is powered by a power source in addition to or instead of the battery. For example, in at least one embodiment, the power source is a 115V 400Hz power source, and in another embodiment, it is a 115V 50 / 60Hz power source.

[0009] As an example, the UV lamp is configured to emit UV light with a wavelength of 200 nm to 230 nm. As a further example, the UV lamp is configured to emit UV light with a wavelength of 222 nm.

[0010] As another example, the UV lamp is configured to emit UV light with a wavelength of 230 nm to 280 nm. As a further example, the UV lamp is configured to emit UV light with a wavelength of 254 nm.

[0011] In at least one embodiment, the wand assembly includes a sterilization head having the UV lamp. As an example, the wand assembly further includes a handle coupled to the sterilization head. Further, the wand assembly may also include a connector that movably couples the handle to the sterilization head. Further, the sterilization head can be configured to perform one or both of linear translational movement or rotation relative to the handle.

[0012] In at least one embodiment, the sterilization head includes a shroud that holds the UV lamp. As an example, the shroud includes one or more openings configured to allow air to flow into the shroud.

[0013] In at least one embodiment, a reflector is fixed to the lower surface of the shroud. The reflector is configured to reflect a portion of the UV light emitted by the UV lamp.

[0014] In at least one embodiment, the sterilization head further includes a reflector and a cover plate. The UV lamp is fixed, for example, inside an internal chamber defined between the reflector and the cover plate.

[0015] Some embodiments of the present disclosure provide a portable disinfection method that includes connecting a backpack assembly to a wand assembly that includes an ultraviolet (UV) lamp. In at least one embodiment, the connecting includes connecting the backpack assembly to the wand assembly with a hose.

[0016] In at least one embodiment, the portable disinfection method further includes generating an air flow for cooling the UV lamp by an air flow device of the backpack assembly, sucking air from a disinfection head of the wand assembly by the air flow device of the backpack assembly, or removing ozone from the disinfection head of the wand assembly by the air flow device of the backpack assembly, one or more of which.

[0017] In at least one embodiment, the portable disinfection method includes filtering the air sucked from the disinfection head of the wand assembly by at least one air filter of the backpack assembly.

[0018] In at least one embodiment, the portable disinfection method further includes supplying power to the UV lamp by one or more batteries housed in the backpack assembly.

Brief Description of the Drawings

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DETAILED DESCRIPTION OF THE INVENTION

[0020] The above summary and the detailed description of several embodiments below will be more clearly understood by referring to the accompanying drawings. In this specification, elements or steps described in the singular form do not necessarily exclude a plurality of elements or steps. Further, reference to "one embodiment" is not intended to exclude the existence of another embodiment incorporating the features described in that embodiment. Further, unless otherwise specified, an embodiment "comprising" or "having" one or more elements in a particular state may additionally include another element not in that state.

[0021] Some embodiments of the present disclosure provide a portable disinfection system for disinfecting surfaces such as within a vehicle's interior cabin. The portable disinfection system includes a wand assembly and a backpack assembly. The wand assembly includes a housing, an ultraviolet (UV) lamp, a reflector, a mount for securing the UV lamp to the housing, an air intake for feeding air to the UV lamp, and a telescoping handle configured to extend the reach of the wand assembly. The backpack assembly includes a body or housing, a power source, one or more batteries (e.g., rechargeable batteries), a plug for charging the backpack, a blower, a carbon filter, an exhaust port, and a harness for enabling an operator to wear the portable disinfection system.

[0022] The UV lamp is configured to emit UV light for disinfecting parts such as the surface of a structure within a vehicle, for example. In at least one embodiment, the UV lamp is configured to emit UV light in the far ultraviolet region. In at least one other embodiment, the UV lamp is configured to emit UV light in the UVC spectrum.

[0023] FIG. 1 is a perspective view of a portable disinfection system 100 worn by an operator 101 according to an embodiment of the present disclosure. The portable disinfection system 100 includes a first assembly such as a wand assembly 102 connected to a second assembly such as a backpack assembly 104, and the backpack assembly is removably fixed to the operator by a harness 105. The wand assembly 102 includes a disinfection head 106 connected to a handle 108. In at least one embodiment, the disinfection head 106 is movably connected to the handle 108 by a coupler 110.

[0024] Optionally, the disinfection head 106 is not movably connected to the handle 108. For example, the disinfection head 106 can be fixed to the handle 108. In at least one embodiment, at least a part of the disinfection head 106 is integrally formed and / or fixed to at least a part of the handle 108.

[0025] As shown in FIG. 1, the wand assembly 102 is in a storage position. In the storage position, the wand assembly 102 is removably fixed to a part of the backpack assembly 104 by, for example, one or more tracks, clips, latches, belts, ties, etc.

[0026] Figure 2 is a top side perspective view of the wand assembly 102 according to an embodiment of the present disclosure. The disinfection head 106 is connected to the handle 108 by a connector 110. The disinfection head 106 includes a shroud 112 having an outer cover 114 extending from a proximal end 116 to a distal end 118. As described herein, the shroud 112 houses a UV lamp. Optionally, the disinfection head 106 is connected to the handle 108 without using the connector 110.

[0027] A port 120 extends from the proximal end 116. The port 120 is connected to a hose 122, and the hose is connected to the backpack assembly 104 (shown in FIG. 1). The hose 122 incorporates an electrical cord, cable, wiring, etc. that connects a power source (e.g., one or more batteries) within the backpack assembly 104 (shown in FIG. 1) to the UV lamp 140 within the shroud 112. Optionally, the electrical cord, cable, wiring, etc. may be external to the hose 122. The hose 122 also includes an air supply line (e.g., an air tube) that fluidly connects the internal chamber of the shroud 112 to a blower, a vacuum generator, an air filter, etc. within the backpack assembly 104.

[0028] The connector 110 is fixed to the outer cover 114 of the shroud 112, for example, at a position adjacent to the proximal end 116. The connector 110 may include a fixed beam 124 fixed to the outer cover 114 by, for example, one or more fasteners, adhesives, etc. An extension beam 126 extends outward from the fixed beam 124, thereby separating the handle 108 from the shroud 112. A bearing assembly 128 extends from the extension beam 126 on the opposite side of the fixed beam 124. The bearing assembly 128 includes one or more bearings, tracks, etc., whereby the handle 108 can linearly translate in the direction of arrow A with respect to the connector 110 or pivot in the direction of arc B about the pivot axis 129. Optionally, the fixed beam 124 includes a bearing assembly, whereby in addition to or instead of the handle 108 being connected to the bearing assembly 128 (for example, the handle 108 may be fixed to the connector 110), the sterilization head 106 can linearly translate in the direction of arrow A or rotate (for example, pivot) in the direction of arc B.

[0029] In at least one embodiment, the handle 108 includes a rod, pole, beam, etc. 130, which is, for example, longer than the shroud 112. Optionally, the rod 130 may be shorter than the shroud 112. One or more grips 132 are fixed to the rod 130. The grips 132 are configured such that an operator can grip or hold them. The grips 132 may include ergonomically based tactile features 134.

[0030] Optionally, the wand assembly 102 may have a different size and shape than that shown. For example, in at least one embodiment, the handle 108 may be fixed to the shroud 112. Also, the handle 108 may be configured to move relative to itself and / or the shroud 112, or it may not be so configured. For example, the handle 108 and the shroud 112 may be integrally formed as a single unit. As a further example, the wand assembly 102 may have the size, shape, and configuration as described in U.S. Design Patent Application No. 29 / 735,235, "Ultraviolet Wand," filed on May 19, 2020.

[0031] FIG. 3 is a rear side perspective view of the wand assembly 102 of FIG. 2. FIG. 4 is a side perspective view of the wand assembly 102 of FIG. 2. Referring to FIGS. 3 and 4, the handle 108 is pivotally coupled to the coupler 110 via a bearing 136 having a pivot axis 138 that pivotally couples the handle 108 to the coupler 110, for example. The handle 108 can further be configured to linearly translate so as to move in and out of the bearing 136. For example, the handle 108 may be configured to be nested and move in and out. Optionally, or alternatively, in at least one embodiment, the handle 108 may include a nested body portion that allows for outward extension and inward contraction of the handle 108.

[0032] FIG. 5 is a perspective view of the portable disinfection system 100 in a compact arrangement according to an embodiment of the present disclosure. The wand assembly 102 is removed from the backpack assembly 104 (as shown in FIG. 1) and placed in the compact arrangement shown in FIG. 5. The wand assembly 102 is connected to the backpack assembly 104 by a hose 122. In this compact arrangement, the disinfection head 106 is fully retracted relative to the handle 108.

[0033] In at least one other embodiment, the backpack assembly 104 is configured to be openable and closable. An internal chamber is defined within the backpack assembly 104. In at least one embodiment, the wand assembly 102 is configured to be housed within this internal chamber when not in use.

[0034] FIG. 6 is a perspective view of the portable sterilization system 100 with the sterilization head 106 in the extended position, according to an embodiment of the present disclosure. To extend the sterilization head 106 relative to the handle 108, the sterilization head 106 is slid outward relative to the handle 108 in the direction of arrow A' (alternatively, the handle 108 is slid backward relative to the sterilization head 106). As mentioned above, the sterilization head 106 can linearly translate relative to the handle 108 in the direction of arrow A' via the coupler 110. As the sterilization head 106 extends as shown in FIG. 6, the portable sterilization system 100 can easily reach remote areas. Alternatively, the sterilization head 106 does not have to linearly translate relative to the handle 108.

[0035] FIG. 7 is a perspective view of the portable sterilization system 100 with the sterilization head 106 in the extended position and the handle 108 also in the extended position, according to an embodiment of the present disclosure. To reach further, the handle 108 can be configured to linearly translate, for example, by a telescoping portion, whereby the sterilization head 106 can reach further outward. Alternatively, the handle 108 does not have to be of a telescoping configuration.

[0036] In at least one embodiment, the handle 108 may include a lock 109. The lock 109 is configured to be selectively operated to fix the handle 108 in a desired extended (or retracted) position.

[0037] FIG. 8 is a perspective view of the portable sterilization system 100 with the sterilization head 106 rotated relative to the handle 108 according to an embodiment of the present disclosure. As mentioned above, the sterilization head 106 is configured to rotate relative to the handle 108 via the coupler 110. By rotating the sterilization head 106 relative to the handle 108, the sterilization head 106 can be moved to a desired position and pass through or reach areas that are difficult to reach if the sterilization head 106 were rigidly fixed to the handle 108. Alternatively, the sterilization head 106 may not be rotatable relative to the handle 108.

[0038] FIG. 9 is an end-side perspective view of the UV lamp 140 and the reflector 142 of the sterilization head 106 according to an embodiment of the present disclosure. The UV lamp 140 and the reflector 142 are fixed within the shroud 112 (shown in FIG. 2, for example) of the sterilization head 106. In at least one embodiment, the reflector 142 is fixed to the lower surface 141 of the shroud 112 by, for example, one or more adhesives. As another example, the reflector 142 is an integrally formed part of the shroud 112. For example, the reflector 142 may form the lower surface 141 of the shroud 112. The reflector 142 provides a reflective surface 143 (formed of, for example, a surface formed of Teflon, a mirror surface, etc.) configured to reflect the UV light emitted by the UV lamp 140 outward. In at least one example, the shroud 112 includes an outer shell formed of, for example, glass fiber, and the reflector 142 may be formed of Teflon that achieves, for example, a reflectivity of 98%.

[0039] The reflector 142 extends, for example, along the entire length of the lower surface 141 of the shroud 112. Optionally, the length of the reflector 142 may be shorter than the entire length of the lower surface 141 of the shroud 112.

[0040] The UV lamp 140 extends along its entire length (or along substantially its entire length, such as between the ends 116 and 118). The UV lamp 140 is fixed to the reflector 142 and / or the shroud 112 by, for example, one or more brackets. The UV lamp 140 includes one or more UV light emitters such as one or more bulbs, light emitting elements (such as light emitting diodes). In at least one embodiment, the UV lamp 140 is configured to emit UV light in the far ultraviolet spectrum, such as with a wavelength of 200 nm to 230 nm. In at least one embodiment, the UV lamp 140 is configured to emit UV light with a wavelength of 222 nm. For example, the UV lamp 140 may include a 300 W bulb configured to emit UV light with a wavelength of 222 nm.

[0041] In at least one embodiment, the UV lamp 140 is configured to emit UV light in the UVC spectrum, such as with a wavelength of 230 nm to 280 nm. For example, the UV lamp 140 may be configured to emit UV light with a wavelength of 254 nm.

[0042] As shown in the figure, the reflector 142 includes flat upright side walls 144 connected to each other via an upper curved wall 146. The upper curved wall 146 curves outward, for example, in a direction away from the UV lamp 140. For example, the upper curved wall 146 may have a parabolic cross-section and / or contour.

[0043] It has been found that the straight linear side walls 144 can reflect and / or focus the UV light emitted from the UV lamp 140 to a desired position. As an alternative example, the side walls 144 do not have to be linear or flat.

[0044] FIG. 10 is an end-side perspective view of the UV lamp 140 and the reflector 142 of the sterilization head according to an embodiment of the present disclosure. The reflector 142 shown in FIG. 10 is the same as the reflector 142 shown in FIG. 9, except that the side walls 144 are inclined outward from the upper curved wall 146.

[0045] FIG. 11 is an end - side perspective view of the UV lamp 140 and the reflector 142 of the disinfection head according to an embodiment of the present disclosure. In this embodiment, the side wall 144 is curved, for example, according to the curvature of the upper curved wall 146.

[0046] FIG. 12 is a top - side perspective view of the disinfection head 106. FIG. 13 is a bottom - side perspective view of the disinfection head 106. FIG. 14 is an axial cross - sectional view of the disinfection head 106 taken along line 14 - 14 of FIG. 12. Referring to FIGS. 12 - 14, air 150 is configured to be drawn into the disinfection head 106 through one or more openings 152 of the shroud 112 (or simply by having an open chamber). The air 150 is drawn into the disinfection head 106, for example, by a vacuum generating device within the backpack assembly 104 (shown in FIG. 1). The air 150 is drawn into the shroud 112 and cools the UV lamp 140 as it passes above and around the UV lamp 140. The air 150 enters the port 120 and then into the hose 122, for example, into an air tube within the hose 122. The air 150 not only cools the UV lamp 140 but also removes, for example, ozone within the shroud 112 generated by the operation of the UV lamp 140. The air 150 is drawn into an air filter, such as an activated carbon filter within the backpack assembly 104.

[0047] In at least one embodiment, the portable disinfection system 100 may include an alternative ozone reduction system. As an example, the ozone reduction system may be disposed in the shroud 112 or another part of the system and may include an inert gas tank or a face inert gas system as described in U.S. Patent No. 10,232,954.

[0048] Referring particularly to FIG. 13, a buffer member 153 may be fixed to the exposed lower peripheral edge of the shroud 112. The buffer member 153 can be formed of an elastic material such as rubber or other elastomeric materials, continuous or closed-cell foams. The buffer member 153 protects the disinfection head 106 from damage when the disinfection head 106 inadvertently contacts the surface. The buffer member 153 also protects the surface from damage.

[0049] The opening 152 may be provided spaced apart from the lower surface of the shroud 112 such that the UV lamp 140 is not directly visible from the opening. For example, the opening 152 may be disposed in a lower portion spaced from the UV lamp 140.

[0050] Referring particularly to FIG. 14, the disinfection head 106 may include a cover plate 154 provided below the UV lamp 140. The cover plate 154 is formed of, for example, glass and is configured to filter the UV light emitted by the UV lamp 140. The UV lamp 140 can be fixed within an internal chamber 156 defined between the reflector 142 and the cover plate 154. In at least one embodiment, the cover plate 154 includes a far-ultraviolet bandpass filter. For example, the cover plate 154 is a 222 nm bandpass filter that filters the UV light emitted by the UV lamp 140 to a wavelength of 222 nm. Thereby, the UV light emitted from the disinfection head 106 can be emitted at a wavelength of 222 nm. Optionally, the cover plate 154 may not include a far-ultraviolet bandpass filter. In at least one other embodiment, the cover plate 154 includes a UVC bandpass filter.

[0051] Referring to FIGS. 13 and 14, for example, the cover plate 154 is connected to the shroud 112 by a rim 157 (e.g., a titanium rim having a thickness of 0.020 inches). The rim 157 disperses impact loads on itself and its surroundings.

[0052] In at least one embodiment, a distance measuring light emitting diode (LED) 159 can be disposed adjacent to an end of the UV lamp 140. The distance measuring LED 159 can be used to measure a desired distance to, for example, a structure to be sterilized. In at least one embodiment, the distance measuring LED 159 is disposed, for example, on or inside the rim 157 and / or the cover plate 154.

[0053] FIG. 15 is an end side perspective view of a UV lamp 140 fixed to a mounting bracket or clamp 160 according to an embodiment of the present disclosure. Each end of the UV lamp 140 is connected to a mounting bracket or clamp 160, which fixes the UV lamp 140 to the shroud 112 (shown in FIGS. 12 to 14). A cushioning material such as a thin sheet of silicon (for example, 0.040 inches) may be disposed between the end of the UV lamp 140 and the bracket 160. Optionally, the UV lamp 140 may be fixed to the shroud 112 via a bracket or clamp different from that shown. As another example, the UV lamp 140 may be fixed to the shroud 112 by an adhesive, a fastener, or the like.

[0054] FIG. 16 is an exploded perspective view of a backpack assembly 104 according to an embodiment of the present disclosure. The backpack assembly 104 includes a front wall 170 connected to a rear outer shell 172, a base 174, and an upper lid 176. An internal chamber 178 is defined between the front wall 170, the rear outer shell 172, the base 174, and the upper lid 176. One or more batteries 180 such as rechargeable lithium batteries are housed in the internal chamber 178. An air generation subsystem 182 is also housed in the internal chamber 178. The air generation subsystem 182 is in fluid communication with an air tube in the hose 122 (for example, shown in FIG. 2). The air generation subsystem 182 may include an air flow device such as a vacuum generator, a blower. The air flow device is configured to generate an air flow for cooling the UV lamp, suck air from the sterilization head 106 into the backpack assembly 104 and discharge it from the exhaust pipe, and remove the generated ozone by sucking it out from the shroud 112 or the like.

[0055] The backpack assembly 104 is provided with one or more air filters 183, such as a carbon filter. The air filter 183 communicates with an air tube or other similar air supply duct or line that sends air to the backpack assembly 104 through the hose 122. The air filter 183 is configured to filter the air sucked into the backpack assembly 104 from the shroud 112. For example, the air filter 183 can be configured to remove, inactivate, or neutralize ozone.

[0056] The battery and / or power source within the backpack assembly 104 provides the operating power for the UV lamp 140 of the disinfection head 106 (shown in FIG. 2 for example). The upper wall 176 can be removably connected to the front wall 170 and the rear outer shell 172. For example, by removing the upper wall 176, the battery 180 can be reached (for battery removal and / or charging, etc.). Additional space for accommodating consumables, additional batteries, additional parts, etc. may be provided within the backpack assembly 104. In at least one embodiment, the front wall 170, the rear outer shell 172, the base 174, and the upper lid 176 can be formed of glass fiber epoxy resin.

[0057] FIG. 17 is a front-side perspective view of a harness 105 connected to the backpack assembly 104 according to an embodiment of the present disclosure. The harness 105 includes, for example, a shoulder strap 190 and / or a waist or hip belt or strap 192, whereby an operator can comfortably wear the backpack assembly 104.

[0058] Referring to FIGS. 1 to 17, during operation, the operator wears, for example, the backpack assembly 104 and walks within the area. When a structure to be disinfected is found, the operator grasps and positions the handle 108, and extends or rotates the disinfection head 106 relative to the handle 108 to place the disinfection head 106 in a desired position. Then, the operator activates the UV lamp 140, for example, by operating an activation button provided on the handle 108, to irradiate the structure with UV light for disinfection. When the UV lamp 140 is activated, air 150 is drawn into the shroud 112 to cool the UV lamp 140, and the generated ozone is sent into the backpack assembly 104, where the ozone is filtered by the air filter 183.

[0059] The extendable wand assembly 102 allows the disinfection head 106 to reach areas that are far away, for example, it can reach an entire set of three passenger seats in a row within the interior cabin of a commercial aircraft.

[0060] FIG. 18 shows the ultraviolet light spectrum. Referring to FIGS. 1 to 18, in at least one embodiment, the disinfection head 106 is configured to emit UV light for disinfection in the far ultraviolet spectrum, such as, for example, from 200 nm to 230 nm (by the operation of the UV lamp 140). In at least one embodiment, the disinfection head 106 emits UV light for disinfection at a wavelength of 222 nm. In at least one embodiment, the disinfection head 106 is configured to emit UV light for disinfection in the UVC spectrum, such as, for example, from 230 nm to 280 nm.

[0061] FIG. 19 is a front side perspective view of an aircraft 210 according to an embodiment of the present disclosure. The aircraft 210 includes, for example, a propulsion system 212 that includes engines 214. Optionally, the propulsion system 212 may include more engines 214 than shown. The engines 214 are mounted on wings 216 of the aircraft 210. In other embodiments, the engines 214 may also be mounted on the fuselage 218 and / or the tail 220. The tail 220 may also support a horizontal stabilizer 222 and a vertical stabilizer 224.

[0062] The fuselage 218 of the aircraft 210 defines an interior cabin 230 that includes a flight deck or cockpit, one or more work sections (such as a galley, a crew carry-on baggage area, etc.), one or more passenger sections (such as first class, business class, economy class sections), one or more lavatories, and the like. The interior cabin 230 includes one or more lavatory systems, lavatory units, or lavatories as described herein.

[0063] Alternatively, embodiments of the present disclosure can be used in various other vehicles such as automobiles, buses, locomotives, railroad vehicles, ships, etc. instead of aircraft. Further, embodiments of the present disclosure can also be used in fixed structures such as commercial buildings and residential buildings.

[0064] Figure 20A is a plan view of an aircraft interior cabin 230 according to an embodiment of the present disclosure. The interior cabin 230 is within an aircraft fuselage 232, such as the fuselage 218 of FIG. 19. For example, one or more fuselage walls may define the interior cabin 230. The interior cabin 230 includes a plurality of sections, including a forward section 233, a first-class section 234, a business-class section 236, a forward galley station 238, an extended economy section 240, a standard economy section 242, and a rear section 244, which may include a plurality of lavatories and galley stations. Note that the interior cabin 230 may include more or fewer sections than shown. For example, the interior cabin 230 may not include a first-class section, and may include more or fewer galley stations than shown. These sections are separated, for example, by a passenger compartment partitioning area 246, which may include a class partition assembly between aisles 248.

[0065] As shown in FIG. 20A, the interior cabin 230 includes two aisles 250 and 252 that lead to a rear section 244. Optionally, the interior cabin 230 may have fewer or more aisles than shown. For example, the interior cabin 230 may include one aisle that extends through the center of the interior cabin 230 and leads to the rear section 44.

[0066] Aisles 248, 250, and 252 extend to an exit route or door aisle 260. An exit door 262 is located at the end of the exit route 260. The exit route 260 is perpendicular to the aisles 248, 250, 252, for example. The interior cabin 230 may also have additional exit routes 260 in locations other than those shown. Using the portable disinfection system 100 illustrated and described in FIGS. 1-18, various structures within the interior cabin 230, such as passenger seats, monuments, storage box assemblies, components above and within lavatories, and galley equipment and components, can be disinfected.

[0067] Figure 20B is a plan view of an aircraft interior cabin 280 according to an embodiment of the present disclosure. The interior cabin 280 is an example of the interior cabin 230 shown in FIG. 19. The interior cabin 280 is, for example, within the fuselage 281 of the aircraft. For example, one or more fuselage walls may define the interior cabin 280. The interior cabin 280 includes a main cabin 282 having passenger seats 283 and a rear section 285 behind the main cabin 282. Note that the interior cabin 230 may include more or fewer sections than shown.

[0068] For example, the interior cabin 280 may include a single aisle 284 that leads to the rear section 285. This single aisle 284 extends, for example, through the center of the interior cabin 280 and leads to the rear section 285. For example, this single aisle 284 is arranged coaxially with the central longitudinal plane of the interior cabin 280.

[0069] The aisle 284 extends to an exit route or door aisle 290. An exit door 292 is located at the end of the exit aisle 290. The exit route 290 is, for example, perpendicular to the aisle 284. The interior cabin 280 may also have additional exit routes in locations other than those shown. Using the portable sterilization system 100 illustrated and described in FIGS. 1 - 18, various structures within the interior cabin 230, such as passenger seats, interior furnishings, storage box assemblies, components above and within the lavatory, and galley equipment and components, can be sterilized.

[0070] Figure 21 is an interior perspective view of an aircraft interior cabin 300 according to an embodiment of the present disclosure. The interior cabin 300 includes an outboard wall 302 connected to a ceiling 304. Windows 306 are formed, for example, in the outboard wall 302. A floor 308 supports rows of seats 310. As shown in FIG. 21, one row 312 may have two seats each on both sides of an aisle 313. However, row 312 may have more or fewer seats than shown. Further, the interior cabin 300 may include more aisles than shown.

[0071] The PSU (passenger service unit) 314 is fixed between the outer walls 302 on both sides of the aisle 313 and the ceiling 304. The PSU 314 extends between the front end and the rear end of the interior cabin 300. For example, the PSU 314 is located above each seat 310 in the row 312. Each PSU 314 may generally include a housing 316 that houses a vent, a reading light, an oxygen cylinder drop panel, a crew request button, and other control devices disposed above each seat 31 (or a group of seats) in the row 312.

[0072] The overhead storage bin assembly 318 is fixed to the ceiling 304 and / or the outer wall 302 above and inboard of the PSU 314 on both sides of the aisle 313. The overhead storage bin assembly 318 is fixed above the seat 310. The overhead storage bin assembly 318 extends between the front end and the rear end of the interior cabin 300. Each storage bin assembly 318 may include a pivoting box or bucket 320 pivotally fixed to a strongback (hidden in FIG. 21). The overhead storage bin assembly 318 is located, for example, above and inboard of the lower surface of the PSU 314. The overhead storage bin assembly 318 is configured to pivotally open to allow passengers to place their luggage and personal items.

[0073] As used herein, the term "outboard" means a position farther from the central longitudinal plane 322 of the interior cabin 300 compared to another component. "Inboard" means a position closer to the central longitudinal plane 322 of the interior cabin 300 compared to another component. For example, the lower surface of the PSU 314 is outboard of the storage bin assembly 318.

[0074] Using the portable sterilization system 100 illustrated and described in FIGS. 1-18, various structures within the interior cabin 300 can be sterilized. As an example, using the portable sterilization system 100, various components within the aircraft cockpit or flight deck can be sterilized.

[0075] When not in use, the portable sterilization system 100 can be stored, for example, in a closet, a galley cart bay, or a galley cart inside the interior cabin of a vehicle.

[0076] FIG. 22 is an internal perspective view of the lavatory 330 in the interior cabin of a vehicle, and the interior cabin is, for example, any of the interior cabins described herein. The lavatory 330 is an example of a closed space, interior equipment, or chamber, such as inside the interior cabin of a vehicle. The lavatory 330 is, as described above, for example, mounted on an aircraft. Optionally, the lavatory 330 is mounted on various other vehicles. In other embodiments, the lavatory 330 may be inside a fixed structure such as a commercial building or a residential building. The lavatory 330 includes a toilet 332, a cabinet 334, a sink 336, or a bottom floor 331 that supports a washbasin. The lavatory 330 may be arranged differently from the illustration. The lavatory 330 may include more or fewer components than shown. Using the portable sterilization system 100 illustrated and described in FIGS. 1-18, various structures, components, and surfaces in the lavatory 330 can be sterilized.

[0077] Some embodiments of the present disclosure provide a portable sterilization method that includes connecting a backpack assembly to a wand assembly that includes an ultraviolet (UV) lamp. In at least one embodiment, the connecting includes connecting the backpack assembly to the wand assembly with a hose.

[0078] In at least one embodiment, the portable sterilization method further includes generating an air flow for cooling the UV lamp by an air flow device of the backpack assembly, sucking air from the sterilization head of the wand assembly by the air flow device of the backpack assembly, and / or removing ozone from the sterilization head of the wand assembly by the air flow device of the backpack assembly.

[0079] In at least one embodiment, this portable sterilization method includes filtering the air sucked from the sterilization head of the wand assembly by at least one air filter of the backpack assembly.

[0080] In at least one embodiment, this portable sterilization method further includes powering the UV lamp by one or more batteries housed within the backpack assembly.

[0081] Referring to FIGS. 1-22, by using the portable sterilization system 100, surfaces with frequent contact opportunities in the flight deck and the interior cabin can be safely and effectively sterilized in a timely and cost-effective manner. Through UV disinfection, the interior cabin can be quickly and effectively disinfected, for example, during breaks between flights. In at least one embodiment, the portable sterilization system 100 can be used to supplement the cleaning process, for example, after manual cleaning. [Appendix]

[0082] Furthermore, the present disclosure includes embodiments according to the following appendix.

[0083] Appendix 1. A portable sterilization system comprising a wand assembly including an ultraviolet (UV) lamp and a backpack assembly connected to the wand assembly. A portable sterilization system including a wand assembly including an ultraviolet (UV) lamp and a backpack assembly connected to the wand assembly.

[0084] Appendix 2. The portable sterilization system according to Appendix 1, further comprising a hose connecting the backpack assembly to the wand assembly.

[0085] Appendix 3. The portable sterilization system according to Appendix 1 or 2, wherein the backpack assembly includes an air flow device configured to perform one or more of generating an air flow for cooling the UV lamp, sucking air from the sterilization head of the wand assembly, or removing ozone from the sterilization head.

[0086] Appendix 4. The portable sterilization system according to any one of Appendices 1 to 3, wherein the backpack assembly includes at least one air filter configured to filter air sucked from the sterilization head of the wand assembly.

[0087] Appendix 5. The portable sterilization system according to any one of Appendices 1 to 4, wherein the backpack assembly includes one or more batteries for supplying power to the UV lamp.

[0088] Appendix 6. The portable sterilization system according to any one of Appendices 1 to 5, wherein the UV lamp is configured to emit UV light having a wavelength of 200 nm to 230 nm.

[0089] Appendix 7. The portable sterilization system according to any one of Appendices 1 to 5, wherein the UV lamp is configured to emit UV light having a wavelength of 222 nm.

[0090] Appendix 8. The portable sterilization system according to any one of Appendices 1 to 5, wherein the UV lamp is configured to emit UV light having a wavelength of 230 nm to 280 nm.

[0091] Appendix 9. The portable sterilization system according to any one of Appendices 1 to 5, wherein the UV lamp is configured to emit UV light having a wavelength of 254 nm.

[0092] Appendix 10. The portable sterilization system according to any one of Appendices 1 to 9, wherein the wand assembly includes a sterilization head having the UV lamp.

[0093] Appendix 11. The portable sterilization system according to Appendix 10, wherein the wand assembly further includes a handle connected to the sterilization head.

[0094] Appendix 12. The portable sterilization system according to Appendix 11, wherein the wand assembly further includes a connector movably connecting the handle to the sterilization head.

[0095] Appendix 13. The portable sterilization system according to Appendix 11 or 12, wherein the sterilization head is configured to perform one or both of linear translational movement or rotation with respect to the handle.

[0096] Appendix 14. The portable sterilization system according to any one of Appendices 10 to 13, wherein the sterilization head includes a shroud that holds the UV lamp.

[0097] Appendix 15. The portable sterilization system according to Appendix 14, wherein the shroud includes one or more openings configured to allow air to flow into the shroud.

[0098] Appendix 16. The portable sterilization system according to Appendix 14 or 15, further including a reflector fixed to the lower surface of the shroud, the reflector being configured to reflect a part of the UV light emitted by the UV lamp.

[0099] Appendix 17. The sterilization head is a reflector, and further includes a cover plate, and the UV lamp is fixed inside an internal chamber defined between the reflector and the cover plate. The portable sterilization system according to any one of Appendices 14 to 16.

[0100] Appendix 18. A portable sterilization method including connecting a backpack assembly to a wand assembly including an ultraviolet (UV) lamp.

[0101] Appendix 19. The portable sterilization method according to Appendix 18, wherein the connecting includes connecting the backpack assembly to the wand assembly with a hose.

[0102] Appendix 20. Generating an air flow for cooling the UV lamp by an air flow device of the backpack assembly The air flow device of the backpack assembly sucks air from the sterilization head of the wand assembly. The portable sterilization method according to appendix 18 or 19, further comprising one or more of: removing ozone from the sterilization head of the wand assembly by the air flow device of the backpack assembly.

[0103] Appendix 21. The portable sterilization method according to any one of appendices 18 to 20, further comprising filtering the air sucked from the sterilization head of the wand assembly by at least one air filter of the backpack assembly.

[0104] Appendix 22. The portable sterilization method according to any one of appendices 18 to 21, further comprising supplying power to the UV lamp by one or more batteries housed in the backpack assembly.

[0105] Appendix 23. A wand assembly including an ultraviolet (UV) lamp, A backpack assembly connected to the wand assembly, the backpack assembly including: An air flow device configured to perform one or more of: generating an air flow for cooling the UV lamp, sucking air from the sterilization head of the wand assembly, or removing ozone from the sterilization head; At least one air filter configured to filter the air sucked from the sterilization head of the wand assembly; One or more batteries for supplying power to the UV lamp, a portable sterilization system.

[0106] As described herein, embodiments of the present disclosure provide systems and methods for efficiently sterilizing surfaces, components, structures, etc. within the interior cabin of a vehicle. Further, embodiments of the present disclosure provide compact, user-friendly, and safe systems and methods for sterilizing surfaces within the interior cabin using UV light.

[0107] In order to describe the embodiments of the present disclosure, terms related to various spaces and directions such as up, bottom, down, center, side, horizontal, vertical, front, etc. are used, but these terms are used only with respect to the directions shown in the drawings. These directions can be reversed, rotated, or changed by other means, in which case the upper part becomes the lower part or vice versa, or the horizontal direction becomes the vertical direction or vice versa.

[0108] In this specification, a structure, limitation, or element "configured to" perform a certain process or operation is one that has been specifically formed, configured, or adapted structurally to correspond to the said process or operation. To clarify and avoid ambiguity, it should be added that what can merely be modified to perform the said process or operation does not fall within what is referred to here as "configured to" perform the process or operation.

[0109] Note that the above description is exemplary and not intended to be limiting. For example, the above-described embodiments (and / or aspects thereof) can be used in combination with each other. In addition, many modifications are possible without departing from the scope of the various embodiments, such as adapting these teachings to specific situations and materials. The dimensions and types of materials described in this specification are for clarifying the parameters in various embodiments of the present disclosure, and these embodiments are not restrictive but are merely exemplary embodiments. Many other embodiments will be apparent to those skilled in the art upon consideration of the above description. Therefore, the scope of the various embodiments of the present disclosure should be determined by referring to the appended claims in conjunction with the scope of equivalents recognized in these claims. Also, terms such as "first", "second", "third", etc. are used merely as labels for distinction and do not impose numerical requirements on the objects referred to thereby.

[0110] This specification discloses various embodiments including a best mode using examples, and enables those skilled in the art to implement various embodiments of the present disclosure including the fabrication and use of any device or system and the execution of incorporated methods. The patentable scope of the various embodiments of the present disclosure is defined by the claims and may include other examples that those skilled in the art can envision. Such other examples should be considered to be encompassed by the claims if they have components that do not differ from the literal language of the claims or if they include equivalent components that have only non-essential differences from the literal language of the claims.

Claims

**Claim 1** A wand assembly including an ultraviolet (UV) lamp, and A backpack assembly removably connected to the wand assembly, a portable sterilization system comprising: The wand assembly includes an elongate sterilization head having the UV lamp and an elongate handle connected to the sterilization head via a connecting means, The connecting means is configured to selectively pivot the handle between a first position and a second position relative to the sterilization head. In the first position, the handle pivots in a direction approaching the sterilization head to be in a folded state so as to attach the wand assembly to the backpack assembly. In the second position, the handle pivots in a direction away from the sterilization head to extend the length of the wand assembly for performing a sterilization operation. A portable sterilization system. **Claim 2** The portable sterilization system according to claim 1, further comprising a hose for connecting the backpack assembly to the wand assembly. **Claim 3** The backpack assembly includes an air flow device configured to perform one or more of generating an air flow for cooling the UV lamp, sucking air from the sterilization head of the wand assembly, or removing ozone from the sterilization head. The portable sterilization system according to claim 1 or 2. **Claim 4** The portable sterilization system according to any one of claims 1 to 3, wherein the backpack assembly includes at least one air filter configured to filter air sucked from the sterilization head of the wand assembly. **Claim 5** The portable sterilization system according to any one of claims 1 to 4, wherein the backpack assembly includes one or more batteries for supplying power to the UV lamp. **Claim 6** The portable sterilization system according to any one of claims 1 to 5, wherein the UV lamp is configured to emit UV light having a wavelength of 200 nm to 230 nm. **Claim 7** The portable sterilization system according to any one of claims 1 to 6, wherein the UV lamp is configured to emit UV light having a wavelength of 222 nm. **Claim 8** The portable sterilization system according to any one of claims 1 to 7, wherein the UV lamp is configured to emit UV light having a wavelength of 230 nm to 280 nm. **Claim 9** The portable sterilization system according to any one of claims 1 to 8, wherein the UV lamp is configured to emit UV light having a wavelength of 254 nm.

10. The portable sterilization system according to any one of claims 1 to 9, wherein the handle is telescopically extendable and retractable.

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